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Merge remote-tracking branch 'origin/master'

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This commit is contained in:
Alex Theedom
2017-01-31 06:40:48 +00:00
parent 5bd907aa01 e44c72f727
commit 6c2ed878c0
248 changed files with 33942 additions and 2550 deletions
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.gitignore
+1
View File
@@ -27,3 +27,4 @@ target/
spring-openid/src/main/resources/application.properties
.recommenders/
/spring-hibernate4/nbproject/
algorithms/src/main/java/com/baeldung/algorithms/dijkstra/Dijkstra.java
+1 -3
View File
@@ -18,9 +18,7 @@ public class Dijkstra {
while (unsettledNodes.size() != 0) {
Node currentNode = getLowestDistanceNode(unsettledNodes);
unsettledNodes.remove(currentNode);
for (Entry<Node, Integer> adjacencyPair : currentNode
.getAdjacentNodes()
.entrySet()) {
for (Entry<Node, Integer> adjacencyPair : currentNode.getAdjacentNodes().entrySet()) {
Node adjacentNode = adjacencyPair.getKey();
Integer edgeWeigh = adjacencyPair.getValue();
algorithms/src/test/java/algorithms/DijkstraAlgorithmTest.java
+5 -15
View File
@@ -55,29 +55,19 @@ public class DijkstraAlgorithmTest {
for (Node node : graph.getNodes()) {
switch (node.getName()) {
case "B":
assertTrue(node
.getShortestPath()
.equals(shortestPathForNodeB));
assertTrue(node.getShortestPath().equals(shortestPathForNodeB));
break;
case "C":
assertTrue(node
.getShortestPath()
.equals(shortestPathForNodeC));
assertTrue(node.getShortestPath().equals(shortestPathForNodeC));
break;
case "D":
assertTrue(node
.getShortestPath()
.equals(shortestPathForNodeD));
assertTrue(node.getShortestPath().equals(shortestPathForNodeD));
break;
case "E":
assertTrue(node
.getShortestPath()
.equals(shortestPathForNodeE));
assertTrue(node.getShortestPath().equals(shortestPathForNodeE));
break;
case "F":
assertTrue(node
.getShortestPath()
.equals(shortestPathForNodeF));
assertTrue(node.getShortestPath().equals(shortestPathForNodeF));
break;
}
}
annotations/annotation-processing/src/main/java/com/baeldung/annotation/processor/BuilderProcessor.java
+3 -12
View File
@@ -27,17 +27,12 @@ public class BuilderProcessor extends AbstractProcessor {
Set<? extends Element> annotatedElements = roundEnv.getElementsAnnotatedWith(annotation);
Map<Boolean, List<Element>> annotatedMethods = annotatedElements.stream()
.collect(Collectors.partitioningBy(element ->
((ExecutableType) element.asType()).getParameterTypes().size() == 1
&& element.getSimpleName().toString().startsWith("set")));
Map<Boolean, List<Element>> annotatedMethods = annotatedElements.stream().collect(Collectors.partitioningBy(element -> ((ExecutableType) element.asType()).getParameterTypes().size() == 1 && element.getSimpleName().toString().startsWith("set")));
List<Element> setters = annotatedMethods.get(true);
List<Element> otherMethods = annotatedMethods.get(false);
otherMethods.forEach(element ->
processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR,
"@BuilderProperty must be applied to a setXxx method with a single argument", element));
otherMethods.forEach(element -> processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR, "@BuilderProperty must be applied to a setXxx method with a single argument", element));
if (setters.isEmpty()) {
continue;
@@ -45,11 +40,7 @@ public class BuilderProcessor extends AbstractProcessor {
String className = ((TypeElement) setters.get(0).getEnclosingElement()).getQualifiedName().toString();
Map<String, String> setterMap = setters.stream().collect(Collectors.toMap(
setter -> setter.getSimpleName().toString(),
setter -> ((ExecutableType) setter.asType())
.getParameterTypes().get(0).toString()
));
Map<String, String> setterMap = setters.stream().collect(Collectors.toMap(setter -> setter.getSimpleName().toString(), setter -> ((ExecutableType) setter.asType()).getParameterTypes().get(0).toString()));
try {
writeBuilderFile(className, setterMap);
annotations/annotation-user/src/test/java/com/baeldung/annotation/PersonBuilderTest.java
+1 -4
View File
@@ -9,10 +9,7 @@ public class PersonBuilderTest {
@Test
public void whenBuildPersonWithBuilder_thenObjectHasPropertyValues() {
Person person = new PersonBuilder()
.setAge(25)
.setName("John")
.build();
Person person = new PersonBuilder().setAge(25).setName("John").build();
assertEquals(25, person.getAge());
assertEquals("John", person.getName());
apache-cxf/cxf-introduction/src/main/java/com/baeldung/cxf/introduction/Server.java
+1 -1
View File
@@ -8,7 +8,7 @@ public class Server {
String address = "http://localhost:8080/baeldung";
Endpoint.publish(address, implementor);
System.out.println("Server ready...");
Thread.sleep(60 * 1000);
Thread.sleep(60 * 1000);
System.out.println("Server exiting");
System.exit(0);
}
apache-cxf/cxf-jaxrs-implementation/src/main/java/com/baeldung/cxf/jaxrs/implementation/RestfulServer.java
+1 -1
View File
@@ -11,7 +11,7 @@ public class RestfulServer {
factoryBean.setResourceProvider(new SingletonResourceProvider(new CourseRepository()));
factoryBean.setAddress("http://localhost:8080/");
Server server = factoryBean.create();
System.out.println("Server ready...");
Thread.sleep(60 * 1000);
System.out.println("Server exiting");
assertj/src/test/java/com/baeldung/assertj/introduction/AssertJCoreTest.java
+7 -29
View File
@@ -38,8 +38,7 @@ public class AssertJCoreTest {
public void whenCheckingForElement_thenContains() throws Exception {
List<String> list = Arrays.asList("1", "2", "3");
assertThat(list)
.contains("1");
assertThat(list).contains("1");
}
@Test
@@ -50,12 +49,7 @@ public class AssertJCoreTest {
assertThat(list).startsWith("1");
assertThat(list).doesNotContainNull();
assertThat(list)
.isNotEmpty()
.contains("1")
.startsWith("1")
.doesNotContainNull()
.containsSequence("2", "3");
assertThat(list).isNotEmpty().contains("1").startsWith("1").doesNotContainNull().containsSequence("2", "3");
}
@Test
@@ -67,11 +61,7 @@ public class AssertJCoreTest {
public void whenCheckingCharacter_thenIsUnicode() throws Exception {
char someCharacter = 'c';
assertThat(someCharacter)
.isNotEqualTo('a')
.inUnicode()
.isGreaterThanOrEqualTo('b')
.isLowerCase();
assertThat(someCharacter).isNotEqualTo('a').inUnicode().isGreaterThanOrEqualTo('b').isLowerCase();
}
@Test
@@ -94,11 +84,7 @@ public class AssertJCoreTest {
final File someFile = File.createTempFile("aaa", "bbb");
someFile.deleteOnExit();
assertThat(someFile)
.exists()
.isFile()
.canRead()
.canWrite();
assertThat(someFile).exists().isFile().canRead().canWrite();
}
@Test
@@ -113,20 +99,14 @@ public class AssertJCoreTest {
public void whenGivenMap_then() throws Exception {
Map<Integer, String> map = Maps.newHashMap(2, "a");
assertThat(map)
.isNotEmpty()
.containsKey(2)
.doesNotContainKeys(10)
.contains(entry(2, "a"));
assertThat(map).isNotEmpty().containsKey(2).doesNotContainKeys(10).contains(entry(2, "a"));
}
@Test
public void whenGivenException_then() throws Exception {
Exception ex = new Exception("abc");
assertThat(ex)
.hasNoCause()
.hasMessageEndingWith("c");
assertThat(ex).hasNoCause().hasMessageEndingWith("c");
}
@Ignore // IN ORDER TO TEST, REMOVE THIS LINE
@@ -134,8 +114,6 @@ public class AssertJCoreTest {
public void whenRunningAssertion_thenDescribed() throws Exception {
Person person = new Person("Alex", 34);
assertThat(person.getAge())
.as("%s's age should be equal to 100")
.isEqualTo(100);
assertThat(person.getAge()).as("%s's age should be equal to 100").isEqualTo(100);
}
}
assertj/src/test/java/com/baeldung/assertj/introduction/AssertJGuavaTest.java
+7 -32
View File
@@ -26,9 +26,7 @@ public class AssertJGuavaTest {
final File temp1 = File.createTempFile("bael", "dung1");
final File temp2 = File.createTempFile("bael", "dung2");
assertThat(Files.asByteSource(temp1))
.hasSize(0)
.hasSameContentAs(Files.asByteSource(temp2));
assertThat(Files.asByteSource(temp1)).hasSize(0).hasSameContentAs(Files.asByteSource(temp2));
}
@Test
@@ -37,11 +35,7 @@ public class AssertJGuavaTest {
mmap.put(1, "one");
mmap.put(1, "1");
assertThat(mmap)
.hasSize(2)
.containsKeys(1)
.contains(entry(1, "one"))
.contains(entry(1, "1"));
assertThat(mmap).hasSize(2).containsKeys(1).contains(entry(1, "one")).contains(entry(1, "1"));
}
@Test
@@ -62,31 +56,21 @@ public class AssertJGuavaTest {
mmap2.put(1, "one");
mmap2.put(1, "1");
assertThat(mmap1)
.containsAllEntriesOf(mmap2)
.containsAllEntriesOf(mmap1_clone)
.hasSameEntriesAs(mmap1_clone);
assertThat(mmap1).containsAllEntriesOf(mmap2).containsAllEntriesOf(mmap1_clone).hasSameEntriesAs(mmap1_clone);
}
@Test
public void givenOptional_whenVerifyingContent_thenShouldBeEqual() throws Exception {
final Optional<String> something = Optional.of("something");
assertThat(something)
.isPresent()
.extractingValue()
.isEqualTo("something");
assertThat(something).isPresent().extractingValue().isEqualTo("something");
}
@Test
public void givenRange_whenVerifying_thenShouldBeCorrect() throws Exception {
final Range<String> range = Range.openClosed("a", "g");
assertThat(range)
.hasOpenedLowerBound()
.isNotEmpty()
.hasClosedUpperBound()
.contains("b");
assertThat(range).hasOpenedLowerBound().isNotEmpty().hasClosedUpperBound().contains("b");
}
@Test
@@ -96,10 +80,7 @@ public class AssertJGuavaTest {
map.put(Range.closed(0, 60), "F");
map.put(Range.closed(61, 70), "D");
assertThat(map)
.isNotEmpty()
.containsKeys(0)
.contains(MapEntry.entry(34, "F"));
assertThat(map).isNotEmpty().containsKeys(0).contains(MapEntry.entry(34, "F"));
}
@Test
@@ -109,13 +90,7 @@ public class AssertJGuavaTest {
table.put(1, "A", "PRESENT");
table.put(1, "B", "ABSENT");
assertThat(table)
.hasRowCount(1)
.containsValues("ABSENT")
.containsCell(1, "B", "ABSENT");
assertThat(table).hasRowCount(1).containsValues("ABSENT").containsCell(1, "B", "ABSENT");
}
}
assertj/src/test/java/com/baeldung/assertj/introduction/AssertJJava8Test.java
+16 -40
View File
@@ -20,20 +20,14 @@ public class AssertJJava8Test {
public void givenOptional_shouldAssert() throws Exception {
final Optional<String> givenOptional = Optional.of("something");
assertThat(givenOptional)
.isPresent()
.hasValue("something");
assertThat(givenOptional).isPresent().hasValue("something");
}
@Test
public void givenPredicate_shouldAssert() throws Exception {
final Predicate<String> predicate = s -> s.length() > 4;
assertThat(predicate)
.accepts("aaaaa", "bbbbb")
.rejects("a", "b")
.acceptsAll(asList("aaaaa", "bbbbb"))
.rejectsAll(asList("a", "b"));
assertThat(predicate).accepts("aaaaa", "bbbbb").rejects("a", "b").acceptsAll(asList("aaaaa", "bbbbb")).rejectsAll(asList("a", "b"));
}
@Test
@@ -41,92 +35,74 @@ public class AssertJJava8Test {
final LocalDate givenLocalDate = LocalDate.of(2016, 7, 8);
final LocalDate todayDate = LocalDate.now();
assertThat(givenLocalDate)
.isBefore(LocalDate.of(2020, 7, 8))
.isAfterOrEqualTo(LocalDate.of(1989, 7, 8));
assertThat(givenLocalDate).isBefore(LocalDate.of(2020, 7, 8)).isAfterOrEqualTo(LocalDate.of(1989, 7, 8));
assertThat(todayDate)
.isAfter(LocalDate.of(1989, 7, 8))
.isToday();
assertThat(todayDate).isAfter(LocalDate.of(1989, 7, 8)).isToday();
}
@Test
public void givenLocalDateTime_shouldAssert() throws Exception {
final LocalDateTime givenLocalDate = LocalDateTime.of(2016, 7, 8, 12, 0);
assertThat(givenLocalDate)
.isBefore(LocalDateTime.of(2020, 7, 8, 11, 2));
assertThat(givenLocalDate).isBefore(LocalDateTime.of(2020, 7, 8, 11, 2));
}
@Test
public void givenLocalTime_shouldAssert() throws Exception {
final LocalTime givenLocalTime = LocalTime.of(12, 15);
assertThat(givenLocalTime)
.isAfter(LocalTime.of(1, 0))
.hasSameHourAs(LocalTime.of(12, 0));
assertThat(givenLocalTime).isAfter(LocalTime.of(1, 0)).hasSameHourAs(LocalTime.of(12, 0));
}
@Test
public void givenList_shouldAssertFlatExtracting() throws Exception {
final List<LocalDate> givenList = asList(ofYearDay(2016, 5), ofYearDay(2015, 6));
assertThat(givenList)
.flatExtracting(LocalDate::getYear)
.contains(2015);
assertThat(givenList).flatExtracting(LocalDate::getYear).contains(2015);
}
@Test
public void givenList_shouldAssertFlatExtractingLeapYear() throws Exception {
final List<LocalDate> givenList = asList(ofYearDay(2016, 5), ofYearDay(2015, 6));
assertThat(givenList)
.flatExtracting(LocalDate::isLeapYear)
.contains(true);
assertThat(givenList).flatExtracting(LocalDate::isLeapYear).contains(true);
}
@Test
public void givenList_shouldAssertFlatExtractingClass() throws Exception {
final List<LocalDate> givenList = asList(ofYearDay(2016, 5), ofYearDay(2015, 6));
assertThat(givenList)
.flatExtracting(Object::getClass)
.contains(LocalDate.class);
assertThat(givenList).flatExtracting(Object::getClass).contains(LocalDate.class);
}
@Test
public void givenList_shouldAssertMultipleFlatExtracting() throws Exception {
final List<LocalDate> givenList = asList(ofYearDay(2016, 5), ofYearDay(2015, 6));
assertThat(givenList)
.flatExtracting(LocalDate::getYear, LocalDate::getDayOfMonth)
.contains(2015, 6);
assertThat(givenList).flatExtracting(LocalDate::getYear, LocalDate::getDayOfMonth).contains(2015, 6);
}
@Test
public void givenString_shouldSatisfy() throws Exception {
final String givenString = "someString";
assertThat(givenString)
.satisfies(s -> {
assertThat(s).isNotEmpty();
assertThat(s).hasSize(10);
});
assertThat(givenString).satisfies(s -> {
assertThat(s).isNotEmpty();
assertThat(s).hasSize(10);
});
}
@Test
public void givenString_shouldMatch() throws Exception {
final String emptyString = "";
assertThat(emptyString)
.matches(String::isEmpty);
assertThat(emptyString).matches(String::isEmpty);
}
@Test
public void givenList_shouldHasOnlyOneElementSatisfying() throws Exception {
final List<String> givenList = Arrays.asList("");
assertThat(givenList)
.hasOnlyOneElementSatisfying(s -> assertThat(s).isEmpty());
assertThat(givenList).hasOnlyOneElementSatisfying(s -> assertThat(s).isEmpty());
}
}
autovalue/src/main/java/com/baeldung/autovalue/AutoValueMoney.java
+5 -5
View File
@@ -4,12 +4,12 @@ import com.google.auto.value.AutoValue;
@AutoValue
public abstract class AutoValueMoney {
public abstract String getCurrency();
public abstract String getCurrency();
public abstract long getAmount();
public abstract long getAmount();
public static AutoValueMoney create(String currency, long amount) {
return new AutoValue_AutoValueMoney(currency, amount);
public static AutoValueMoney create(String currency, long amount) {
return new AutoValue_AutoValueMoney(currency, amount);
}
}
}
autovalue/src/main/java/com/baeldung/autovalue/AutoValueMoneyWithBuilder.java
+11 -11
View File
@@ -4,20 +4,20 @@ import com.google.auto.value.AutoValue;
@AutoValue
public abstract class AutoValueMoneyWithBuilder {
public abstract String getCurrency();
public abstract String getCurrency();
public abstract long getAmount();
public abstract long getAmount();
static Builder builder() {
return new AutoValue_AutoValueMoneyWithBuilder.Builder();
}
static Builder builder() {
return new AutoValue_AutoValueMoneyWithBuilder.Builder();
}
@AutoValue.Builder
abstract static class Builder {
abstract Builder setCurrency(String currency);
@AutoValue.Builder
abstract static class Builder {
abstract Builder setCurrency(String currency);
abstract Builder setAmount(long amount);
abstract Builder setAmount(long amount);
abstract AutoValueMoneyWithBuilder build();
}
abstract AutoValueMoneyWithBuilder build();
}
}
autovalue/src/main/java/com/baeldung/autovalue/Foo.java
+38 -38
View File
@@ -3,49 +3,49 @@ package com.baeldung.autovalue;
import java.util.Objects;
public final class Foo {
private final String text;
private final int number;
private final String text;
private final int number;
public Foo(String text, int number) {
this.text = text;
this.number = number;
}
public Foo(String text, int number) {
this.text = text;
this.number = number;
}
public String getText() {
return text;
}
public String getText() {
return text;
}
public int getNumber() {
return number;
}
public int getNumber() {
return number;
}
@Override
public int hashCode() {
return Objects.hash(text, number);
}
@Override
public int hashCode() {
return Objects.hash(text, number);
}
@Override
public String toString() {
return "Foo [text=" + text + ", number=" + number + "]";
}
@Override
public String toString() {
return "Foo [text=" + text + ", number=" + number + "]";
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Foo other = (Foo) obj;
if (number != other.number)
return false;
if (text == null) {
if (other.text != null)
return false;
} else if (!text.equals(other.text))
return false;
return true;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Foo other = (Foo) obj;
if (number != other.number)
return false;
if (text == null) {
if (other.text != null)
return false;
} else if (!text.equals(other.text))
return false;
return true;
}
}
autovalue/src/main/java/com/baeldung/autovalue/ImmutableMoney.java
+45 -44
View File
@@ -1,52 +1,53 @@
package com.baeldung.autovalue;
public final class ImmutableMoney {
private final long amount;
private final String currency;
public ImmutableMoney(long amount, String currency) {
this.amount = amount;
this.currency = currency;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (int) (amount ^ (amount >>> 32));
result = prime * result
+ ((currency == null) ? 0 : currency.hashCode());
return result;
}
private final long amount;
private final String currency;
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
ImmutableMoney other = (ImmutableMoney) obj;
if (amount != other.amount)
return false;
if (currency == null) {
if (other.currency != null)
return false;
} else if (!currency.equals(other.currency))
return false;
return true;
}
public ImmutableMoney(long amount, String currency) {
this.amount = amount;
this.currency = currency;
}
public long getAmount() {
return amount;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (int) (amount ^ (amount >>> 32));
result = prime * result + ((currency == null) ? 0 : currency.hashCode());
return result;
}
public String getCurrency() {
return currency;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
ImmutableMoney other = (ImmutableMoney) obj;
if (amount != other.amount)
return false;
if (currency == null) {
if (other.currency != null)
return false;
} else if (!currency.equals(other.currency))
return false;
return true;
}
@Override
public String toString() {
return "ImmutableMoney [amount=" + amount + ", currency=" + currency
+ "]";
}
public long getAmount() {
return amount;
}
public String getCurrency() {
return currency;
}
@Override
public String toString() {
return "ImmutableMoney [amount=" + amount + ", currency=" + currency + "]";
}
}
autovalue/src/main/java/com/baeldung/autovalue/MutableMoney.java
+23 -24
View File
@@ -1,35 +1,34 @@
package com.baeldung.autovalue;
public class MutableMoney {
@Override
public String toString() {
return "MutableMoney [amount=" + amount + ", currency=" + currency
+ "]";
}
@Override
public String toString() {
return "MutableMoney [amount=" + amount + ", currency=" + currency + "]";
}
public long getAmount() {
return amount;
}
public long getAmount() {
return amount;
}
public void setAmount(long amount) {
this.amount = amount;
}
public void setAmount(long amount) {
this.amount = amount;
}
public String getCurrency() {
return currency;
}
public String getCurrency() {
return currency;
}
public void setCurrency(String currency) {
this.currency = currency;
}
public void setCurrency(String currency) {
this.currency = currency;
}
private long amount;
private String currency;
private long amount;
private String currency;
public MutableMoney(long amount, String currency) {
super();
this.amount = amount;
this.currency = currency;
}
public MutableMoney(long amount, String currency) {
super();
this.amount = amount;
this.currency = currency;
}
}
autovalue/src/test/java/com/baeldung/autovalue/MoneyUnitTest.java
+52 -48
View File
@@ -5,55 +5,59 @@ import static org.junit.Assert.*;
import org.junit.Test;
public class MoneyUnitTest {
@Test
public void givenTwoSameValueMoneyObjects_whenEqualityTestFails_thenCorrect() {
MutableMoney m1 = new MutableMoney(10000, "USD");
MutableMoney m2 = new MutableMoney(10000, "USD");
assertFalse(m1.equals(m2));
}
@Test
public void givenTwoSameValueMoneyObjects_whenEqualityTestFails_thenCorrect() {
MutableMoney m1 = new MutableMoney(10000, "USD");
MutableMoney m2 = new MutableMoney(10000, "USD");
assertFalse(m1.equals(m2));
}
@Test
public void givenTwoSameValueMoneyValueObjects_whenEqualityTestPasses_thenCorrect() {
ImmutableMoney m1 = new ImmutableMoney(10000, "USD");
ImmutableMoney m2 = new ImmutableMoney(10000, "USD");
assertTrue(m1.equals(m2));
}
@Test
public void givenTwoSameValueMoneyValueObjects_whenEqualityTestPasses_thenCorrect() {
ImmutableMoney m1 = new ImmutableMoney(10000, "USD");
ImmutableMoney m2 = new ImmutableMoney(10000, "USD");
assertTrue(m1.equals(m2));
}
@Test
public void givenValueTypeWithAutoValue_whenFieldsCorrectlySet_thenCorrect() {
AutoValueMoney m = AutoValueMoney.create("USD", 10000);
assertEquals(m.getAmount(), 10000);
assertEquals(m.getCurrency(), "USD");
}
@Test
public void givenValueTypeWithAutoValue_whenFieldsCorrectlySet_thenCorrect() {
AutoValueMoney m = AutoValueMoney.create("USD", 10000);
assertEquals(m.getAmount(), 10000);
assertEquals(m.getCurrency(), "USD");
}
@Test
public void given2EqualValueTypesWithAutoValue_whenEqual_thenCorrect() {
AutoValueMoney m1 = AutoValueMoney.create("USD", 5000);
AutoValueMoney m2 = AutoValueMoney.create("USD", 5000);
assertTrue(m1.equals(m2));
}
@Test
public void given2DifferentValueTypesWithAutoValue_whenNotEqual_thenCorrect() {
AutoValueMoney m1 = AutoValueMoney.create("GBP", 5000);
AutoValueMoney m2 = AutoValueMoney.create("USD", 5000);
assertFalse(m1.equals(m2));
}
@Test
public void given2EqualValueTypesWithBuilder_whenEqual_thenCorrect() {
AutoValueMoneyWithBuilder m1 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
AutoValueMoneyWithBuilder m2 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
assertTrue(m1.equals(m2));
}
@Test
public void given2DifferentValueTypesBuilder_whenNotEqual_thenCorrect() {
AutoValueMoneyWithBuilder m1 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
AutoValueMoneyWithBuilder m2 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("GBP").build();
assertFalse(m1.equals(m2));
}
@Test
public void givenValueTypeWithBuilder_whenFieldsCorrectlySet_thenCorrect() {
AutoValueMoneyWithBuilder m = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
assertEquals(m.getAmount(), 5000);
assertEquals(m.getCurrency(), "USD");
}
@Test
public void given2EqualValueTypesWithAutoValue_whenEqual_thenCorrect() {
AutoValueMoney m1 = AutoValueMoney.create("USD", 5000);
AutoValueMoney m2 = AutoValueMoney.create("USD", 5000);
assertTrue(m1.equals(m2));
}
@Test
public void given2DifferentValueTypesWithAutoValue_whenNotEqual_thenCorrect() {
AutoValueMoney m1 = AutoValueMoney.create("GBP", 5000);
AutoValueMoney m2 = AutoValueMoney.create("USD", 5000);
assertFalse(m1.equals(m2));
}
@Test
public void given2EqualValueTypesWithBuilder_whenEqual_thenCorrect() {
AutoValueMoneyWithBuilder m1 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
AutoValueMoneyWithBuilder m2 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
assertTrue(m1.equals(m2));
}
@Test
public void given2DifferentValueTypesBuilder_whenNotEqual_thenCorrect() {
AutoValueMoneyWithBuilder m1 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
AutoValueMoneyWithBuilder m2 = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("GBP").build();
assertFalse(m1.equals(m2));
}
@Test
public void givenValueTypeWithBuilder_whenFieldsCorrectlySet_thenCorrect() {
AutoValueMoneyWithBuilder m = AutoValueMoneyWithBuilder.builder().setAmount(5000).setCurrency("USD").build();
assertEquals(m.getAmount(), 5000);
assertEquals(m.getCurrency(), "USD");
}
}
core-java-9/src/main/java/com/baeldung/java9/language/PrivateInterface.java
+4 -4
View File
@@ -1,16 +1,16 @@
package com.baeldung.java9.language;
public interface PrivateInterface {
private static String staticPrivate() {
return "static private";
}
private String instancePrivate() {
return "instance private";
}
public default void check(){
public default void check() {
String result = staticPrivate();
if (!result.equals("static private"))
throw new AssertionError("Incorrect result for static private interface method");
core-java-9/src/main/java/com/baeldung/java9/process/ProcessUtils.java
+11 -12
View File
@@ -8,37 +8,36 @@ import java.time.Duration;
import java.time.Instant;
import java.util.stream.Stream;
public class ProcessUtils {
public static String getClassPath(){
public static String getClassPath() {
String cp = System.getProperty("java.class.path");
System.out.println("ClassPath is "+cp);
System.out.println("ClassPath is " + cp);
return cp;
}
public static File getJavaCmd() throws IOException{
public static File getJavaCmd() throws IOException {
String javaHome = System.getProperty("java.home");
File javaCmd;
if(System.getProperty("os.name").startsWith("Win")){
if (System.getProperty("os.name").startsWith("Win")) {
javaCmd = new File(javaHome, "bin/java.exe");
}else{
} else {
javaCmd = new File(javaHome, "bin/java");
}
if(javaCmd.canExecute()){
if (javaCmd.canExecute()) {
return javaCmd;
}else{
} else {
throw new UnsupportedOperationException(javaCmd.getCanonicalPath() + " is not executable");
}
}
public static String getMainClass(){
public static String getMainClass() {
return System.getProperty("sun.java.command");
}
public static String getSystemProperties(){
StringBuilder sb = new StringBuilder();
System.getProperties().forEach((s1, s2) -> sb.append(s1 +" - "+ s2) );
public static String getSystemProperties() {
StringBuilder sb = new StringBuilder();
System.getProperties().forEach((s1, s2) -> sb.append(s1 + " - " + s2));
return sb.toString();
}
}
core-java-9/src/main/java/com/baeldung/java9/process/ServiceMain.java
-1
View File
@@ -8,7 +8,6 @@ public class ServiceMain {
ProcessHandle thisProcess = ProcessHandle.current();
long pid = thisProcess.getPid();
Optional<String[]> opArgs = Optional.ofNullable(args);
String procName = opArgs.map(str -> str.length > 0 ? str[0] : null).orElse(System.getProperty("sun.java.command"));
core-java-9/src/test/java/com/baeldung/java9/Java9OptionalsStreamTest.java
+4 -13
View File
@@ -19,10 +19,7 @@ public class Java9OptionalsStreamTest {
public void filterOutPresentOptionalsWithFilter() {
assertEquals(4, listOfOptionals.size());
List<String> filteredList = listOfOptionals.stream()
.filter(Optional::isPresent)
.map(Optional::get)
.collect(Collectors.toList());
List<String> filteredList = listOfOptionals.stream().filter(Optional::isPresent).map(Optional::get).collect(Collectors.toList());
assertEquals(2, filteredList.size());
assertEquals("foo", filteredList.get(0));
@@ -33,9 +30,7 @@ public class Java9OptionalsStreamTest {
public void filterOutPresentOptionalsWithFlatMap() {
assertEquals(4, listOfOptionals.size());
List<String> filteredList = listOfOptionals.stream()
.flatMap(o -> o.isPresent() ? Stream.of(o.get()) : Stream.empty())
.collect(Collectors.toList());
List<String> filteredList = listOfOptionals.stream().flatMap(o -> o.isPresent() ? Stream.of(o.get()) : Stream.empty()).collect(Collectors.toList());
assertEquals(2, filteredList.size());
assertEquals("foo", filteredList.get(0));
@@ -46,9 +41,7 @@ public class Java9OptionalsStreamTest {
public void filterOutPresentOptionalsWithFlatMap2() {
assertEquals(4, listOfOptionals.size());
List<String> filteredList = listOfOptionals.stream()
.flatMap(o -> o.map(Stream::of).orElseGet(Stream::empty))
.collect(Collectors.toList());
List<String> filteredList = listOfOptionals.stream().flatMap(o -> o.map(Stream::of).orElseGet(Stream::empty)).collect(Collectors.toList());
assertEquals(2, filteredList.size());
assertEquals("foo", filteredList.get(0));
@@ -59,9 +52,7 @@ public class Java9OptionalsStreamTest {
public void filterOutPresentOptionalsWithJava9() {
assertEquals(4, listOfOptionals.size());
List<String> filteredList = listOfOptionals.stream()
.flatMap(Optional::stream)
.collect(Collectors.toList());
List<String> filteredList = listOfOptionals.stream().flatMap(Optional::stream).collect(Collectors.toList());
assertEquals(2, filteredList.size());
assertEquals("foo", filteredList.get(0));
core-java-9/src/test/java/com/baeldung/java9/MultiResultionImageTest.java
+2 -5
View File
@@ -1,5 +1,5 @@
package com.baeldung.java9;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;
@@ -13,7 +13,6 @@ import org.junit.Test;
public class MultiResultionImageTest {
@Test
public void baseMultiResImageTest() {
int baseIndex = 1;
@@ -38,10 +37,8 @@ public class MultiResultionImageTest {
return 8 * (i + 1);
}
private static BufferedImage createImage(int i) {
return new BufferedImage(getSize(i), getSize(i),
BufferedImage.TYPE_INT_RGB);
return new BufferedImage(getSize(i), getSize(i), BufferedImage.TYPE_INT_RGB);
}
}
core-java-9/src/test/java/com/baeldung/java9/httpclient/SimpleHttpRequestsTest.java
+42 -42
View File
@@ -1,6 +1,4 @@
package com.baeldung.java9.httpclient;
package com.baeldung.java9.httpclient;
import static java.net.HttpURLConnection.HTTP_OK;
import static org.junit.Assert.assertTrue;
@@ -28,8 +26,8 @@ import org.junit.Test;
public class SimpleHttpRequestsTest {
private URI httpURI;
private URI httpURI;
@Before
public void init() throws URISyntaxException {
httpURI = new URI("http://www.baeldung.com/");
@@ -37,26 +35,26 @@ public class SimpleHttpRequestsTest {
@Test
public void quickGet() throws IOException, InterruptedException, URISyntaxException {
HttpRequest request = HttpRequest.create( httpURI ).GET();
HttpRequest request = HttpRequest.create(httpURI).GET();
HttpResponse response = request.response();
int responseStatusCode = response.statusCode();
String responseBody = response.body(HttpResponse.asString());
assertTrue("Get response status code is bigger then 400", responseStatusCode < 400);
assertTrue("Get response status code is bigger then 400", responseStatusCode < 400);
}
@Test
public void asynchronousGet() throws URISyntaxException, IOException, InterruptedException, ExecutionException{
public void asynchronousGet() throws URISyntaxException, IOException, InterruptedException, ExecutionException {
HttpRequest request = HttpRequest.create(httpURI).GET();
long before = System.currentTimeMillis();
CompletableFuture<HttpResponse> futureResponse = request.responseAsync();
futureResponse.thenAccept( response -> {
futureResponse.thenAccept(response -> {
String responseBody = response.body(HttpResponse.asString());
});
});
HttpResponse resp = futureResponse.get();
HttpHeaders hs = resp.headers();
assertTrue("There should be more then 1 header.", hs.map().size() >1);
assertTrue("There should be more then 1 header.", hs.map().size() > 1);
}
@Test
public void postMehtod() throws URISyntaxException, IOException, InterruptedException {
HttpRequest.Builder requestBuilder = HttpRequest.create(httpURI);
@@ -66,61 +64,63 @@ public class SimpleHttpRequestsTest {
int statusCode = response.statusCode();
assertTrue("HTTP return code", statusCode == HTTP_OK);
}
@Test
public void configureHttpClient() throws NoSuchAlgorithmException, URISyntaxException, IOException, InterruptedException{
public void configureHttpClient() throws NoSuchAlgorithmException, URISyntaxException, IOException, InterruptedException {
CookieManager cManager = new CookieManager();
cManager.setCookiePolicy(CookiePolicy.ACCEPT_ORIGINAL_SERVER);
SSLParameters sslParam = new SSLParameters (new String[] { "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256" }, new String[] { "TLSv1.2" });
SSLParameters sslParam = new SSLParameters(new String[] { "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256" }, new String[] { "TLSv1.2" });
HttpClient.Builder hcBuilder = HttpClient.create();
hcBuilder.cookieManager(cManager).sslContext(SSLContext.getDefault()).sslParameters(sslParam);
HttpClient httpClient = hcBuilder.build();
HttpRequest.Builder reqBuilder = httpClient.request(new URI("https://www.facebook.com"));
HttpRequest request = reqBuilder.followRedirects(HttpClient.Redirect.ALWAYS).GET();
HttpResponse response = request.response();
int statusCode = response.statusCode();
assertTrue("HTTP return code", statusCode == HTTP_OK);
}
SSLParameters getDefaultSSLParameters() throws NoSuchAlgorithmException{
SSLParameters getDefaultSSLParameters() throws NoSuchAlgorithmException {
SSLParameters sslP1 = SSLContext.getDefault().getSupportedSSLParameters();
String [] proto = sslP1.getApplicationProtocols();
String [] cifers = sslP1.getCipherSuites();
String[] proto = sslP1.getApplicationProtocols();
String[] cifers = sslP1.getCipherSuites();
System.out.println(printStringArr(proto));
System.out.println(printStringArr(cifers));
return sslP1;
}
String printStringArr(String ... args ){
if(args == null){
String printStringArr(String... args) {
if (args == null) {
return null;
}
StringBuilder sb = new StringBuilder();
for (String s : args){
for (String s : args) {
sb.append(s);
sb.append("\n");
}
return sb.toString();
}
String printHeaders(HttpHeaders h){
if(h == null){
String printHeaders(HttpHeaders h) {
if (h == null) {
return null;
}
StringBuilder sb = new StringBuilder();
Map<String, List<String>> hMap = h.map();
for(String k : hMap.keySet()){
sb.append(k).append(":");
List<String> l = hMap.get(k);
if( l != null ){
l.forEach( s -> { sb.append(s).append(","); } );
}
sb.append("\n");
}
return sb.toString();
StringBuilder sb = new StringBuilder();
Map<String, List<String>> hMap = h.map();
for (String k : hMap.keySet()) {
sb.append(k).append(":");
List<String> l = hMap.get(k);
if (l != null) {
l.forEach(s -> {
sb.append(s).append(",");
});
}
sb.append("\n");
}
return sb.toString();
}
}
core-java-9/src/test/java/com/baeldung/java9/language/TryWithResourcesTest.java
+1 -4
View File
@@ -7,7 +7,7 @@ public class TryWithResourcesTest {
static int closeCount = 0;
static class MyAutoCloseable implements AutoCloseable{
static class MyAutoCloseable implements AutoCloseable {
final FinalWrapper finalWrapper = new FinalWrapper();
public void close() {
@@ -57,7 +57,6 @@ public class TryWithResourcesTest {
assertEquals("Expected and Actual does not match", 5, closeCount);
}
static class CloseableException extends Exception implements AutoCloseable {
@Override
public void close() {
@@ -66,5 +65,3 @@ public class TryWithResourcesTest {
}
}
core-java-9/src/test/java/com/baeldung/java9/language/stream/CollectorImprovementTest.java
+61
View File
@@ -0,0 +1,61 @@
package com.baeldung.java9.language.stream;
import org.junit.Test;
import java.util.*;
import java.util.stream.Collectors;
import java.util.function.Function;
import static org.junit.Assert.assertEquals;
public class CollectorImprovementTest {
@Test
public void givenList_whenSatifyPredicate_thenMapValueWithOccurences() {
List<Integer> numbers = List.of(1, 2, 3, 5, 5);
Map<Integer, Long> result = numbers.stream().filter(val -> val > 3).collect(Collectors.groupingBy(Function.identity(), Collectors.counting()));
assertEquals(1, result.size());
result = numbers.stream().collect(Collectors.groupingBy(Function.identity(), Collectors.filtering(val -> val > 3, Collectors.counting())));
assertEquals(4, result.size());
}
@Test
public void givenListOfBlogs_whenAuthorName_thenMapAuthorWithComments() {
Blog blog1 = new Blog("1", "Nice", "Very Nice");
Blog blog2 = new Blog("2", "Disappointing", "Ok", "Could be better");
List<Blog> blogs = List.of(blog1, blog2);
Map<String, List<List<String>>> authorComments1 = blogs.stream().collect(Collectors.groupingBy(Blog::getAuthorName, Collectors.mapping(Blog::getComments, Collectors.toList())));
assertEquals(2, authorComments1.size());
assertEquals(2, authorComments1.get("1").get(0).size());
assertEquals(3, authorComments1.get("2").get(0).size());
Map<String, List<String>> authorComments2 = blogs.stream().collect(Collectors.groupingBy(Blog::getAuthorName, Collectors.flatMapping(blog -> blog.getComments().stream(), Collectors.toList())));
assertEquals(2, authorComments2.size());
assertEquals(2, authorComments2.get("1").size());
assertEquals(3, authorComments2.get("2").size());
}
}
class Blog {
private String authorName;
private List<String> comments;
public Blog(String authorName, String... comments) {
this.authorName = authorName;
this.comments = List.of(comments);
}
public String getAuthorName() {
return this.authorName;
}
public List<String> getComments() {
return this.comments;
}
}
core-java-9/src/test/java/com/baeldung/java9/language/stream/StreamFeaturesTest.java
+15 -23
View File
@@ -17,16 +17,11 @@ public class StreamFeaturesTest {
public static class TakeAndDropWhileTest {
public Stream<String> getStreamAfterTakeWhileOperation() {
return Stream
.iterate("", s -> s + "s")
.takeWhile(s -> s.length() < 10);
return Stream.iterate("", s -> s + "s").takeWhile(s -> s.length() < 10);
}
public Stream<String> getStreamAfterDropWhileOperation() {
return Stream
.iterate("", s -> s + "s")
.takeWhile(s -> s.length() < 10)
.dropWhile(s -> !s.contains("sssss"));
return Stream.iterate("", s -> s + "s").takeWhile(s -> s.length() < 10).dropWhile(s -> !s.contains("sssss"));
}
@Test
@@ -72,25 +67,25 @@ public class StreamFeaturesTest {
}
public static class OfNullableTest {
public static class OfNullableTest {
private List<String> collection = Arrays.asList("A", "B", "C");
private Map<String, Integer> map = new HashMap<>() {{
put("A", 10);
put("C", 30);
}};
private Map<String, Integer> map = new HashMap<>() {
{
put("A", 10);
put("C", 30);
}
};
private Stream<Integer> getStreamWithOfNullable() {
return collection.stream()
.flatMap(s -> Stream.ofNullable(map.get(s)));
return collection.stream().flatMap(s -> Stream.ofNullable(map.get(s)));
}
private Stream<Integer> getStream() {
return collection.stream()
.flatMap(s -> {
Integer temp = map.get(s);
return temp != null ? Stream.of(temp) : Stream.empty();
});
return collection.stream().flatMap(s -> {
Integer temp = map.get(s);
return temp != null ? Stream.of(temp) : Stream.empty();
});
}
private List<Integer> testOfNullableFrom(Stream<Integer> stream) {
@@ -107,10 +102,7 @@ public class StreamFeaturesTest {
@Test
public void testOfNullable() {
assertEquals(
testOfNullableFrom(getStream()),
testOfNullableFrom(getStreamWithOfNullable())
);
assertEquals(testOfNullableFrom(getStream()), testOfNullableFrom(getStreamWithOfNullable()));
}
core-java-9/src/test/java/com/baeldung/java9/process/ProcessApi.java
+28 -29
View File
@@ -22,90 +22,89 @@ import static org.junit.Assert.assertTrue;
public class ProcessApi {
@Before
public void init() {
}
@Test
public void processInfoExample()throws NoSuchAlgorithmException{
public void processInfoExample() throws NoSuchAlgorithmException {
ProcessHandle self = ProcessHandle.current();
long PID = self.getPid();
ProcessHandle.Info procInfo = self.info();
Optional<String[]> args = procInfo.arguments();
Optional<String> cmd = procInfo.commandLine();
Optional<String> cmd = procInfo.commandLine();
Optional<Instant> startTime = procInfo.startInstant();
Optional<Duration> cpuUsage = procInfo.totalCpuDuration();
waistCPU();
System.out.println("Args "+ args);
System.out.println("Command " +cmd.orElse("EmptyCmd"));
System.out.println("Start time: "+ startTime.get().toString());
System.out.println("Args " + args);
System.out.println("Command " + cmd.orElse("EmptyCmd"));
System.out.println("Start time: " + startTime.get().toString());
System.out.println(cpuUsage.get().toMillis());
Stream<ProcessHandle> allProc = ProcessHandle.current().children();
allProc.forEach(p -> {
System.out.println("Proc "+ p.getPid());
System.out.println("Proc " + p.getPid());
});
}
@Test
public void createAndDestroyProcess() throws IOException, InterruptedException{
public void createAndDestroyProcess() throws IOException, InterruptedException {
int numberOfChildProcesses = 5;
for(int i=0; i < numberOfChildProcesses; i++){
for (int i = 0; i < numberOfChildProcesses; i++) {
createNewJVM(ServiceMain.class, i).getPid();
}
Stream<ProcessHandle> childProc = ProcessHandle.current().children();
assertEquals( childProc.count(), numberOfChildProcesses);
Stream<ProcessHandle> childProc = ProcessHandle.current().children();
assertEquals(childProc.count(), numberOfChildProcesses);
childProc = ProcessHandle.current().children();
childProc.forEach(processHandle -> {
assertTrue("Process "+ processHandle.getPid() +" should be alive!", processHandle.isAlive());
assertTrue("Process " + processHandle.getPid() + " should be alive!", processHandle.isAlive());
CompletableFuture<ProcessHandle> onProcExit = processHandle.onExit();
onProcExit.thenAccept(procHandle -> {
System.out.println("Process with PID "+ procHandle.getPid() + " has stopped");
System.out.println("Process with PID " + procHandle.getPid() + " has stopped");
});
});
Thread.sleep(10000);
childProc = ProcessHandle.current().children();
childProc.forEach(procHandle -> {
assertTrue("Could not kill process "+procHandle.getPid(), procHandle.destroy());
assertTrue("Could not kill process " + procHandle.getPid(), procHandle.destroy());
});
Thread.sleep(5000);
childProc = ProcessHandle.current().children();
childProc.forEach(procHandle -> {
assertFalse("Process "+ procHandle.getPid() +" should not be alive!", procHandle.isAlive());
assertFalse("Process " + procHandle.getPid() + " should not be alive!", procHandle.isAlive());
});
}
private Process createNewJVM(Class mainClass, int number) throws IOException{
private Process createNewJVM(Class mainClass, int number) throws IOException {
ArrayList<String> cmdParams = new ArrayList<String>(5);
cmdParams.add(ProcessUtils.getJavaCmd().getAbsolutePath());
cmdParams.add("-cp");
cmdParams.add(ProcessUtils.getClassPath());
cmdParams.add(mainClass.getName());
cmdParams.add("Service "+ number);
cmdParams.add("Service " + number);
ProcessBuilder myService = new ProcessBuilder(cmdParams);
myService.inheritIO();
return myService.start();
}
private void waistCPU() throws NoSuchAlgorithmException{
private void waistCPU() throws NoSuchAlgorithmException {
ArrayList<Integer> randArr = new ArrayList<Integer>(4096);
SecureRandom sr = SecureRandom.getInstanceStrong();
Duration somecpu = Duration.ofMillis(4200L);
Instant end = Instant.now().plus(somecpu);
while (Instant.now().isBefore(end)) {
//System.out.println(sr.nextInt());
randArr.add( sr.nextInt() );
// System.out.println(sr.nextInt());
randArr.add(sr.nextInt());
}
}
core-java/src/main/java/com/baeldung/algorithms/RunAlgorithm.java
+19 -20
View File
@@ -7,25 +7,24 @@ import com.baeldung.algorithms.slope_one.SlopeOne;
public class RunAlgorithm {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.println("Run algorithm:");
System.out.println("1 - Simulated Annealing");
System.out.println("2 - Slope One");
int decision = in.nextInt();
switch (decision) {
case 1:
System.out.println(
"Optimized distance for travel: " + SimulatedAnnealing.simulateAnnealing(10, 10000, 0.9995));
break;
case 2:
SlopeOne.slopeOne(3);
break;
default:
System.out.println("Unknown option");
break;
}
in.close();
}
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.println("Run algorithm:");
System.out.println("1 - Simulated Annealing");
System.out.println("2 - Slope One");
int decision = in.nextInt();
switch (decision) {
case 1:
System.out.println("Optimized distance for travel: " + SimulatedAnnealing.simulateAnnealing(10, 10000, 0.9995));
break;
case 2:
SlopeOne.slopeOne(3);
break;
default:
System.out.println("Unknown option");
break;
}
in.close();
}
}
core-java/src/main/java/com/baeldung/algorithms/annealing/City.java
+11 -11
View File
@@ -5,18 +5,18 @@ import lombok.Data;
@Data
public class City {
private int x;
private int y;
private int x;
private int y;
public City() {
this.x = (int) (Math.random() * 500);
this.y = (int) (Math.random() * 500);
}
public City() {
this.x = (int) (Math.random() * 500);
this.y = (int) (Math.random() * 500);
}
public double distanceToCity(City city) {
int x = Math.abs(getX() - city.getX());
int y = Math.abs(getY() - city.getY());
return Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
}
public double distanceToCity(City city) {
int x = Math.abs(getX() - city.getX());
int y = Math.abs(getY() - city.getY());
return Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
}
}
core-java/src/main/java/com/baeldung/algorithms/annealing/SimulatedAnnealing.java
+1 -1
View File
@@ -24,7 +24,7 @@ public class SimulatedAnnealing {
}
t *= coolingRate;
} else {
continue;
continue;
}
if (i % 100 == 0) {
System.out.println("Iteration #" + i);
core-java/src/main/java/com/baeldung/algorithms/slope_one/InputData.java
+19 -20
View File
@@ -11,26 +11,25 @@ import lombok.Data;
@Data
public class InputData {
protected static List<Item> items = Arrays.asList(new Item("Candy"), new Item("Drink"), new Item("Soda"), new Item("Popcorn"),
new Item("Snacks"));
public static Map<User, HashMap<Item, Double>> initializeData(int numberOfUsers) {
Map<User, HashMap<Item, Double>> data = new HashMap<>();
HashMap<Item, Double> newUser;
Set<Item> newRecommendationSet;
for (int i = 0; i < numberOfUsers; i++) {
newUser = new HashMap<Item, Double>();
newRecommendationSet = new HashSet<>();
for (int j = 0; j < 3; j++) {
newRecommendationSet.add(items.get((int) (Math.random() * 5)));
}
for (Item item : newRecommendationSet) {
newUser.put(item, Math.random());
}
data.put(new User("User " + i), newUser);
}
return data;
}
protected static List<Item> items = Arrays.asList(new Item("Candy"), new Item("Drink"), new Item("Soda"), new Item("Popcorn"), new Item("Snacks"));
public static Map<User, HashMap<Item, Double>> initializeData(int numberOfUsers) {
Map<User, HashMap<Item, Double>> data = new HashMap<>();
HashMap<Item, Double> newUser;
Set<Item> newRecommendationSet;
for (int i = 0; i < numberOfUsers; i++) {
newUser = new HashMap<Item, Double>();
newRecommendationSet = new HashSet<>();
for (int j = 0; j < 3; j++) {
newRecommendationSet.add(items.get((int) (Math.random() * 5)));
}
for (Item item : newRecommendationSet) {
newUser.put(item, Math.random());
}
data.put(new User("User " + i), newUser);
}
return data;
}
}

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