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move the code into core-java-collections-lists module

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mherbaghinyan
2019-01-25 09:51:15 +04:00
parent de366357bb
commit ae344b37ec
4 changed files with 31 additions and 19 deletions
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core-java-arrays/pom.xml
-16
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@@ -52,22 +52,6 @@
<artifactId>spring-web</artifactId>
<version>${springframework.spring-web.version}</version>
</dependency>
<dependency>
<groupId>net.sf.trove4j</groupId>
<artifactId>trove4j</artifactId>
<version>3.0.2</version>
</dependency>
<dependency>
<groupId>it.unimi.dsi</groupId>
<artifactId>fastutil</artifactId>
<version>8.1.0</version>
</dependency>
<dependency>
<groupId>colt</groupId>
<artifactId>colt</artifactId>
<version>1.2.0</version>
</dependency>
</dependencies>
<build>
core-java-arrays/src/main/java/com/baeldung/array/PrimitiveCollections.java
-32
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@@ -1,32 +0,0 @@
package com.baeldung.array;
import com.google.common.primitives.ImmutableIntArray;
import com.google.common.primitives.Ints;
import java.util.Arrays;
import java.util.List;
public class PrimitiveCollections {
public static void main(String[] args) {
int[] primitives = new int[] {5, 10, 0, 2};
guavaPrimitives(primitives);
}
private static void guavaPrimitives(int[] primitives) {
ImmutableIntArray immutableIntArray = ImmutableIntArray.builder().addAll(primitives).build();
System.out.println(immutableIntArray);
List<Integer> list = Ints.asList(primitives);
int[] primitiveArray = Ints.toArray(list);
int[] concatenated = Ints.concat(primitiveArray, primitives);
System.out.println(Arrays.toString(concatenated));
}
}
core-java-arrays/src/main/java/com/baeldung/array/PrimitivesListPerformance.java
-77
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@@ -1,77 +0,0 @@
package com.baeldung.array;
import it.unimi.dsi.fastutil.ints.IntArrayList;
import gnu.trove.list.array.TIntArrayList;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.concurrent.TimeUnit;
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Warmup(iterations = 10)
public class PrimitivesListPerformance {
@State(Scope.Thread)
public static class Initialize {
List<Integer> arrayList = new ArrayList<>();
TIntArrayList tList = new TIntArrayList();
cern.colt.list.IntArrayList coltList = new cern.colt.list.IntArrayList();
IntArrayList fastUtilList = new IntArrayList();
int getValue = 10;
final int iterations = 100000;
@Setup(Level.Trial)
public void setUp() {
for (int i = 0; i < iterations; i++) {
arrayList.add(i);
tList.add(i);
coltList.add(i);
fastUtilList.add(i);
}
arrayList.add(getValue);
tList.add(getValue);
coltList.add(getValue);
fastUtilList.add(getValue);
}
}
@Benchmark
public boolean containsArrayList(PrimitivesListPerformance.Initialize state) {
return state.arrayList.contains(state.getValue);
}
@Benchmark
public boolean containsTIntList(PrimitivesListPerformance.Initialize state) {
return state.tList.contains(state.getValue);
}
@Benchmark
public boolean containsColtIntList(PrimitivesListPerformance.Initialize state) {
return state.coltList.contains(state.getValue);
}
@Benchmark
public boolean containsFastUtilIntList(PrimitivesListPerformance.Initialize state) {
return state.fastUtilList.contains(state.getValue);
}
public static void main(String[] args) throws Exception {
Options options = new OptionsBuilder()
.include(PrimitivesListPerformance.class.getSimpleName()).threads(1)
.forks(1).shouldFailOnError(true)
.shouldDoGC(true)
.jvmArgs("-server").build();
new Runner(options).run();
}
}