Merge branch 'master' into BAEL-10838
This commit is contained in:
Loredana Crusoveanu
@@ -1,9 +0,0 @@
|
||||
package com.baeldung.accessmodifiers;
|
||||
|
||||
public class Public {
|
||||
public Public() {
|
||||
SuperPublic.publicMethod(); // Available everywhere.
|
||||
SuperPublic.protectedMethod(); // Available in the same package or subclass.
|
||||
SuperPublic.defaultMethod(); // Available in the same package.
|
||||
}
|
||||
}
|
||||
@@ -1,9 +0,0 @@
|
||||
package com.baeldung.accessmodifiers;
|
||||
|
||||
public class SubClass extends SuperPublic {
|
||||
public SubClass() {
|
||||
SuperPublic.publicMethod(); // Available everywhere.
|
||||
SuperPublic.protectedMethod(); // Available in the same package or subclass.
|
||||
SuperPublic.defaultMethod(); // Available in the same package.
|
||||
}
|
||||
}
|
||||
@@ -1,39 +0,0 @@
|
||||
package com.baeldung.accessmodifiers;
|
||||
|
||||
//Only public or default access modifiers are permitted
|
||||
public class SuperPublic {
|
||||
// Always available from anywhere
|
||||
static public void publicMethod() {
|
||||
System.out.println(SuperPublic.class.getName() + " publicMethod()");
|
||||
}
|
||||
|
||||
// Available within the same package
|
||||
static void defaultMethod() {
|
||||
System.out.println(SuperPublic.class.getName() + " defaultMethod()");
|
||||
}
|
||||
|
||||
// Available within the same package and subclasses
|
||||
static protected void protectedMethod() {
|
||||
System.out.println(SuperPublic.class.getName() + " protectedMethod()");
|
||||
}
|
||||
|
||||
// Available within the same class only
|
||||
static private void privateMethod() {
|
||||
System.out.println(SuperPublic.class.getName() + " privateMethod()");
|
||||
}
|
||||
|
||||
// Method in the same class = has access to all members within the same class
|
||||
private void anotherPrivateMethod() {
|
||||
privateMethod();
|
||||
defaultMethod();
|
||||
protectedMethod();
|
||||
publicMethod(); // Available in the same class only.
|
||||
}
|
||||
}
|
||||
|
||||
// Only public or default access modifiers are permitted
|
||||
class SuperDefault {
|
||||
public void publicMethod() {
|
||||
System.out.println(this.getClass().getName() + " publicMethod()");
|
||||
}
|
||||
}
|
||||
@@ -1,9 +0,0 @@
|
||||
package com.baeldung.accessmodifiers.another;
|
||||
|
||||
import com.baeldung.accessmodifiers.SuperPublic;
|
||||
|
||||
public class AnotherPublic {
|
||||
public AnotherPublic() {
|
||||
SuperPublic.publicMethod(); // Available everywhere.
|
||||
}
|
||||
}
|
||||
-10
@@ -1,10 +0,0 @@
|
||||
package com.baeldung.accessmodifiers.another;
|
||||
|
||||
import com.baeldung.accessmodifiers.SuperPublic;
|
||||
|
||||
public class AnotherSubClass extends SuperPublic {
|
||||
public AnotherSubClass() {
|
||||
SuperPublic.publicMethod(); // Available everywhere.
|
||||
SuperPublic.protectedMethod(); // Available in subclass. Let's note different package.
|
||||
}
|
||||
}
|
||||
-9
@@ -1,9 +0,0 @@
|
||||
package com.baeldung.accessmodifiers.another;
|
||||
|
||||
import com.baeldung.accessmodifiers.SuperPublic;
|
||||
|
||||
public class AnotherSuperPublic {
|
||||
public AnotherSuperPublic() {
|
||||
SuperPublic.publicMethod(); // Available everywhere. Let's note different package.
|
||||
}
|
||||
}
|
||||
@@ -1,13 +0,0 @@
|
||||
package com.baeldung.casting;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class Animal {
|
||||
private static final Logger LOGGER = LoggerFactory.getLogger(Animal.class);
|
||||
|
||||
public void eat() {
|
||||
LOGGER.info("animal is eating");
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,23 +0,0 @@
|
||||
package com.baeldung.casting;
|
||||
|
||||
import java.util.List;
|
||||
|
||||
public class AnimalFeeder {
|
||||
|
||||
public void feed(List<Animal> animals) {
|
||||
animals.forEach(animal -> {
|
||||
animal.eat();
|
||||
if (animal instanceof Cat) {
|
||||
((Cat) animal).meow();
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
public void uncheckedFeed(List<Animal> animals) {
|
||||
animals.forEach(animal -> {
|
||||
animal.eat();
|
||||
((Cat) animal).meow();
|
||||
});
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,24 +0,0 @@
|
||||
package com.baeldung.casting;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
|
||||
public class AnimalFeederGeneric<T> {
|
||||
private Class<T> type;
|
||||
|
||||
public AnimalFeederGeneric(Class<T> type) {
|
||||
this.type = type;
|
||||
}
|
||||
|
||||
public List<T> feed(List<Animal> animals) {
|
||||
List<T> list = new ArrayList<T>();
|
||||
animals.forEach(animal -> {
|
||||
if (type.isInstance(animal)) {
|
||||
T objAsType = type.cast(animal);
|
||||
list.add(objAsType);
|
||||
}
|
||||
});
|
||||
return list;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,16 +0,0 @@
|
||||
package com.baeldung.casting;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class Cat extends Animal implements Mew {
|
||||
private static final Logger LOGGER = LoggerFactory.getLogger(Cat.class);
|
||||
|
||||
public void eat() {
|
||||
LOGGER.info("cat is eating");
|
||||
}
|
||||
|
||||
public void meow() {
|
||||
LOGGER.info("meow");
|
||||
}
|
||||
}
|
||||
@@ -1,12 +0,0 @@
|
||||
package com.baeldung.casting;
|
||||
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
public class Dog extends Animal {
|
||||
private static final Logger LOGGER = LoggerFactory.getLogger(Dog.class);
|
||||
|
||||
public void eat() {
|
||||
LOGGER.info("dog is eating");
|
||||
}
|
||||
}
|
||||
@@ -1,5 +0,0 @@
|
||||
package com.baeldung.casting;
|
||||
|
||||
public interface Mew {
|
||||
public void meow();
|
||||
}
|
||||
@@ -1,56 +0,0 @@
|
||||
package com.baeldung.constructors;
|
||||
|
||||
import java.time.LocalDateTime;
|
||||
|
||||
class BankAccount {
|
||||
String name;
|
||||
LocalDateTime opened;
|
||||
double balance;
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return String.format("%s, %s, %f", this.name, this.opened.toString(), this.balance);
|
||||
}
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public LocalDateTime getOpened() {
|
||||
return opened;
|
||||
}
|
||||
|
||||
public double getBalance() {
|
||||
return this.balance;
|
||||
}
|
||||
}
|
||||
|
||||
class BankAccountEmptyConstructor extends BankAccount {
|
||||
public BankAccountEmptyConstructor() {
|
||||
this.name = "";
|
||||
this.opened = LocalDateTime.now();
|
||||
this.balance = 0.0d;
|
||||
}
|
||||
}
|
||||
|
||||
class BankAccountParameterizedConstructor extends BankAccount {
|
||||
public BankAccountParameterizedConstructor(String name, LocalDateTime opened, double balance) {
|
||||
this.name = name;
|
||||
this.opened = opened;
|
||||
this.balance = balance;
|
||||
}
|
||||
}
|
||||
|
||||
class BankAccountCopyConstructor extends BankAccount {
|
||||
public BankAccountCopyConstructor(String name, LocalDateTime opened, double balance) {
|
||||
this.name = name;
|
||||
this.opened = opened;
|
||||
this.balance = balance;
|
||||
}
|
||||
|
||||
public BankAccountCopyConstructor(BankAccount other) {
|
||||
this.name = other.name;
|
||||
this.opened = LocalDateTime.now();
|
||||
this.balance = 0.0f;
|
||||
}
|
||||
}
|
||||
@@ -1,25 +0,0 @@
|
||||
package com.baeldung.constructors;
|
||||
|
||||
import java.time.LocalDateTime;
|
||||
|
||||
class Transaction {
|
||||
final BankAccountEmptyConstructor bankAccount;
|
||||
final LocalDateTime date;
|
||||
final double amount;
|
||||
|
||||
public Transaction(BankAccountEmptyConstructor account, LocalDateTime date, double amount) {
|
||||
this.bankAccount = account;
|
||||
this.date = date;
|
||||
this.amount = amount;
|
||||
}
|
||||
|
||||
/*
|
||||
* Compilation Error :'(, all final variables must be explicitly initialised.
|
||||
* public Transaction() {
|
||||
* }
|
||||
*/
|
||||
|
||||
public void invalidMethod() {
|
||||
// this.amount = 102.03; // Results in a compiler error. You cannot change the value of a final variable.
|
||||
}
|
||||
}
|
||||
@@ -1,59 +0,0 @@
|
||||
package com.baeldung.deepcopy;
|
||||
|
||||
import java.io.Serializable;
|
||||
|
||||
public class Address implements Serializable, Cloneable {
|
||||
|
||||
@Override
|
||||
public Object clone() {
|
||||
try {
|
||||
return (Address) super.clone();
|
||||
} catch (CloneNotSupportedException e) {
|
||||
return new Address(this.street, this.getCity(), this.getCountry());
|
||||
}
|
||||
}
|
||||
|
||||
private static final long serialVersionUID = 1740913841244949416L;
|
||||
private String street;
|
||||
private String city;
|
||||
|
||||
private String country;
|
||||
|
||||
public Address(Address that) {
|
||||
this(that.getStreet(), that.getCity(), that.getCountry());
|
||||
}
|
||||
|
||||
public Address(String street, String city, String country) {
|
||||
this.street = street;
|
||||
this.city = city;
|
||||
this.country = country;
|
||||
}
|
||||
|
||||
public Address() {
|
||||
}
|
||||
|
||||
public String getStreet() {
|
||||
return street;
|
||||
}
|
||||
|
||||
public String getCity() {
|
||||
return city;
|
||||
}
|
||||
|
||||
public String getCountry() {
|
||||
return country;
|
||||
}
|
||||
|
||||
public void setStreet(String street) {
|
||||
this.street = street;
|
||||
}
|
||||
|
||||
public void setCity(String city) {
|
||||
this.city = city;
|
||||
}
|
||||
|
||||
public void setCountry(String country) {
|
||||
this.country = country;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,48 +0,0 @@
|
||||
package com.baeldung.deepcopy;
|
||||
|
||||
import java.io.Serializable;
|
||||
|
||||
public class User implements Serializable, Cloneable {
|
||||
|
||||
private static final long serialVersionUID = -3427002229954777557L;
|
||||
private String firstName;
|
||||
private String lastName;
|
||||
private Address address;
|
||||
|
||||
public User(String firstName, String lastName, Address address) {
|
||||
this.firstName = firstName;
|
||||
this.lastName = lastName;
|
||||
this.address = address;
|
||||
}
|
||||
|
||||
public User(User that) {
|
||||
this(that.getFirstName(), that.getLastName(), new Address(that.getAddress()));
|
||||
}
|
||||
|
||||
public User() {
|
||||
}
|
||||
|
||||
@Override
|
||||
public Object clone() {
|
||||
User user;
|
||||
try {
|
||||
user = (User) super.clone();
|
||||
} catch (CloneNotSupportedException e) {
|
||||
user = new User(this.getFirstName(), this.getLastName(), this.getAddress());
|
||||
}
|
||||
user.address = (Address) this.address.clone();
|
||||
return user;
|
||||
}
|
||||
|
||||
public String getFirstName() {
|
||||
return firstName;
|
||||
}
|
||||
|
||||
public String getLastName() {
|
||||
return lastName;
|
||||
}
|
||||
|
||||
public Address getAddress() {
|
||||
return address;
|
||||
}
|
||||
}
|
||||
@@ -1,36 +0,0 @@
|
||||
package com.baeldung.equalshashcode;
|
||||
|
||||
class Money {
|
||||
|
||||
int amount;
|
||||
String currencyCode;
|
||||
|
||||
Money(int amount, String currencyCode) {
|
||||
this.amount = amount;
|
||||
this.currencyCode = currencyCode;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object o) {
|
||||
if (o == this)
|
||||
return true;
|
||||
if (!(o instanceof Money))
|
||||
return false;
|
||||
Money other = (Money)o;
|
||||
boolean currencyCodeEquals = (this.currencyCode == null && other.currencyCode == null)
|
||||
|| (this.currencyCode != null && this.currencyCode.equals(other.currencyCode));
|
||||
return this.amount == other.amount
|
||||
&& currencyCodeEquals;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
int result = 17;
|
||||
result = 31 * result + amount;
|
||||
if (currencyCode != null) {
|
||||
result = 31 * result + currencyCode.hashCode();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,39 +0,0 @@
|
||||
package com.baeldung.equalshashcode;
|
||||
|
||||
class Team {
|
||||
|
||||
final String city;
|
||||
final String department;
|
||||
|
||||
Team(String city, String department) {
|
||||
this.city = city;
|
||||
this.department = department;
|
||||
}
|
||||
|
||||
@Override
|
||||
public final boolean equals(Object o) {
|
||||
if (o == this)
|
||||
return true;
|
||||
if (!(o instanceof Team))
|
||||
return false;
|
||||
Team otherTeam = (Team)o;
|
||||
boolean cityEquals = (this.city == null && otherTeam.city == null)
|
||||
|| this.city != null && this.city.equals(otherTeam.city);
|
||||
boolean departmentEquals = (this.department == null && otherTeam.department == null)
|
||||
|| this.department != null && this.department.equals(otherTeam.department);
|
||||
return cityEquals && departmentEquals;
|
||||
}
|
||||
|
||||
@Override
|
||||
public final int hashCode() {
|
||||
int result = 17;
|
||||
if (city != null) {
|
||||
result = 31 * result + city.hashCode();
|
||||
}
|
||||
if (department != null) {
|
||||
result = 31 * result + department.hashCode();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,38 +0,0 @@
|
||||
package com.baeldung.equalshashcode;
|
||||
|
||||
class Voucher {
|
||||
|
||||
private Money value;
|
||||
private String store;
|
||||
|
||||
Voucher(int amount, String currencyCode, String store) {
|
||||
this.value = new Money(amount, currencyCode);
|
||||
this.store = store;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object o) {
|
||||
if (o == this)
|
||||
return true;
|
||||
if (!(o instanceof Voucher))
|
||||
return false;
|
||||
Voucher other = (Voucher)o;
|
||||
boolean valueEquals = (this.value == null && other.value == null)
|
||||
|| (this.value != null && this.value.equals(other.value));
|
||||
boolean storeEquals = (this.store == null && other.store == null)
|
||||
|| (this.store != null && this.store.equals(other.store));
|
||||
return valueEquals && storeEquals;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
int result = 17;
|
||||
if (this.value != null) {
|
||||
result = 31 * result + value.hashCode();
|
||||
}
|
||||
if (this.store != null) {
|
||||
result = 31 * result + store.hashCode();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
}
|
||||
@@ -1,30 +0,0 @@
|
||||
package com.baeldung.equalshashcode;
|
||||
|
||||
/* (non-Javadoc)
|
||||
* This class overrides equals, but it doesn't override hashCode.
|
||||
*
|
||||
* To see which problems this leads to:
|
||||
* TeamUnitTest.givenMapKeyWithoutHashCode_whenSearched_thenReturnsWrongValue
|
||||
*/
|
||||
class WrongTeam {
|
||||
|
||||
String city;
|
||||
String department;
|
||||
|
||||
WrongTeam(String city, String department) {
|
||||
this.city = city;
|
||||
this.department = department;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object o) {
|
||||
if (o == this)
|
||||
return true;
|
||||
if (!(o instanceof WrongTeam))
|
||||
return false;
|
||||
WrongTeam otherTeam = (WrongTeam)o;
|
||||
return this.city == otherTeam.city
|
||||
&& this.department == otherTeam.department;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,47 +0,0 @@
|
||||
package com.baeldung.equalshashcode;
|
||||
|
||||
/* (non-Javadoc)
|
||||
* This class extends the Money class that has overridden the equals method and once again overrides the equals method.
|
||||
*
|
||||
* To see which problems this leads to:
|
||||
* MoneyUnitTest.givenMoneyAndVoucherInstances_whenEquals_thenReturnValuesArentSymmetric
|
||||
*/
|
||||
class WrongVoucher extends Money {
|
||||
|
||||
private String store;
|
||||
|
||||
WrongVoucher(int amount, String currencyCode, String store) {
|
||||
super(amount, currencyCode);
|
||||
|
||||
this.store = store;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object o) {
|
||||
if (o == this)
|
||||
return true;
|
||||
if (!(o instanceof WrongVoucher))
|
||||
return false;
|
||||
WrongVoucher other = (WrongVoucher)o;
|
||||
boolean currencyCodeEquals = (this.currencyCode == null && other.currencyCode == null)
|
||||
|| (this.currencyCode != null && this.currencyCode.equals(other.currencyCode));
|
||||
boolean storeEquals = (this.store == null && other.store == null)
|
||||
|| (this.store != null && this.store.equals(other.store));
|
||||
return this.amount == other.amount
|
||||
&& currencyCodeEquals
|
||||
&& storeEquals;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
int result = 17;
|
||||
result = 31 * result + amount;
|
||||
if (this.currencyCode != null) {
|
||||
result = 31 * result + currencyCode.hashCode();
|
||||
}
|
||||
if (this.store != null) {
|
||||
result = 31 * result + store.hashCode();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
}
|
||||
@@ -1,63 +0,0 @@
|
||||
package com.baeldung.equalshashcode.entities;
|
||||
|
||||
import java.util.List;
|
||||
import java.util.Set;
|
||||
|
||||
public class ComplexClass {
|
||||
|
||||
private List<?> genericList;
|
||||
private Set<Integer> integerSet;
|
||||
|
||||
public ComplexClass(List<?> genericArrayList, Set<Integer> integerHashSet) {
|
||||
super();
|
||||
this.genericList = genericArrayList;
|
||||
this.integerSet = integerHashSet;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
final int prime = 31;
|
||||
int result = 1;
|
||||
result = prime * result + ((genericList == null) ? 0 : genericList.hashCode());
|
||||
result = prime * result + ((integerSet == null) ? 0 : integerSet.hashCode());
|
||||
return result;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object obj) {
|
||||
if (this == obj)
|
||||
return true;
|
||||
if (obj == null)
|
||||
return false;
|
||||
if (!(obj instanceof ComplexClass))
|
||||
return false;
|
||||
ComplexClass other = (ComplexClass) obj;
|
||||
if (genericList == null) {
|
||||
if (other.genericList != null)
|
||||
return false;
|
||||
} else if (!genericList.equals(other.genericList))
|
||||
return false;
|
||||
if (integerSet == null) {
|
||||
if (other.integerSet != null)
|
||||
return false;
|
||||
} else if (!integerSet.equals(other.integerSet))
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
protected List<?> getGenericList() {
|
||||
return genericList;
|
||||
}
|
||||
|
||||
protected void setGenericArrayList(List<?> genericList) {
|
||||
this.genericList = genericList;
|
||||
}
|
||||
|
||||
protected Set<Integer> getIntegerSet() {
|
||||
return integerSet;
|
||||
}
|
||||
|
||||
protected void setIntegerSet(Set<Integer> integerSet) {
|
||||
this.integerSet = integerSet;
|
||||
}
|
||||
}
|
||||
@@ -1,54 +0,0 @@
|
||||
package com.baeldung.equalshashcode.entities;
|
||||
|
||||
public class PrimitiveClass {
|
||||
|
||||
private boolean primitiveBoolean;
|
||||
private int primitiveInt;
|
||||
|
||||
public PrimitiveClass(boolean primitiveBoolean, int primitiveInt) {
|
||||
super();
|
||||
this.primitiveBoolean = primitiveBoolean;
|
||||
this.primitiveInt = primitiveInt;
|
||||
}
|
||||
|
||||
protected boolean isPrimitiveBoolean() {
|
||||
return primitiveBoolean;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
final int prime = 31;
|
||||
int result = 1;
|
||||
result = prime * result + (primitiveBoolean ? 1231 : 1237);
|
||||
result = prime * result + primitiveInt;
|
||||
return result;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object obj) {
|
||||
if (this == obj)
|
||||
return true;
|
||||
if (obj == null)
|
||||
return false;
|
||||
if (getClass() != obj.getClass())
|
||||
return false;
|
||||
PrimitiveClass other = (PrimitiveClass) obj;
|
||||
if (primitiveBoolean != other.primitiveBoolean)
|
||||
return false;
|
||||
if (primitiveInt != other.primitiveInt)
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
protected void setPrimitiveBoolean(boolean primitiveBoolean) {
|
||||
this.primitiveBoolean = primitiveBoolean;
|
||||
}
|
||||
|
||||
protected int getPrimitiveInt() {
|
||||
return primitiveInt;
|
||||
}
|
||||
|
||||
protected void setPrimitiveInt(int primitiveInt) {
|
||||
this.primitiveInt = primitiveInt;
|
||||
}
|
||||
}
|
||||
@@ -1,58 +0,0 @@
|
||||
package com.baeldung.equalshashcode.entities;
|
||||
|
||||
public class Rectangle extends Shape {
|
||||
private double width;
|
||||
private double length;
|
||||
|
||||
public Rectangle(double width, double length) {
|
||||
this.width = width;
|
||||
this.length = length;
|
||||
}
|
||||
|
||||
@Override
|
||||
public double area() {
|
||||
return width * length;
|
||||
}
|
||||
|
||||
@Override
|
||||
public double perimeter() {
|
||||
return 2 * (width + length);
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
final int prime = 31;
|
||||
int result = 1;
|
||||
long temp;
|
||||
temp = Double.doubleToLongBits(length);
|
||||
result = prime * result + (int) (temp ^ (temp >>> 32));
|
||||
temp = Double.doubleToLongBits(width);
|
||||
result = prime * result + (int) (temp ^ (temp >>> 32));
|
||||
return result;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object obj) {
|
||||
if (this == obj)
|
||||
return true;
|
||||
if (obj == null)
|
||||
return false;
|
||||
if (getClass() != obj.getClass())
|
||||
return false;
|
||||
Rectangle other = (Rectangle) obj;
|
||||
if (Double.doubleToLongBits(length) != Double.doubleToLongBits(other.length))
|
||||
return false;
|
||||
if (Double.doubleToLongBits(width) != Double.doubleToLongBits(other.width))
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
protected double getWidth() {
|
||||
return width;
|
||||
}
|
||||
|
||||
protected double getLength() {
|
||||
return length;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,7 +0,0 @@
|
||||
package com.baeldung.equalshashcode.entities;
|
||||
|
||||
public abstract class Shape {
|
||||
public abstract double area();
|
||||
|
||||
public abstract double perimeter();
|
||||
}
|
||||
@@ -1,58 +0,0 @@
|
||||
package com.baeldung.equalshashcode.entities;
|
||||
|
||||
import java.awt.*;
|
||||
|
||||
public class Square extends Rectangle {
|
||||
|
||||
private Color color;
|
||||
|
||||
public Square(double width, Color color) {
|
||||
super(width, width);
|
||||
this.color = color;
|
||||
}
|
||||
|
||||
/* (non-Javadoc)
|
||||
* @see java.lang.Object#hashCode()
|
||||
*/
|
||||
@Override
|
||||
public int hashCode() {
|
||||
final int prime = 31;
|
||||
int result = super.hashCode();
|
||||
result = prime * result + ((color == null) ? 0 : color.hashCode());
|
||||
return result;
|
||||
}
|
||||
|
||||
/* (non-Javadoc)
|
||||
* @see java.lang.Object#equals(java.lang.Object)
|
||||
*/
|
||||
@Override
|
||||
public boolean equals(Object obj) {
|
||||
if (this == obj) {
|
||||
return true;
|
||||
}
|
||||
if (!super.equals(obj)) {
|
||||
return false;
|
||||
}
|
||||
if (!(obj instanceof Square)) {
|
||||
return false;
|
||||
}
|
||||
Square other = (Square) obj;
|
||||
if (color == null) {
|
||||
if (other.color != null) {
|
||||
return false;
|
||||
}
|
||||
} else if (!color.equals(other.color)) {
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
protected Color getColor() {
|
||||
return color;
|
||||
}
|
||||
|
||||
protected void setColor(Color color) {
|
||||
this.color = color;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -1,5 +0,0 @@
|
||||
package com.baeldung.finalkeyword;
|
||||
|
||||
public class BlackCat {
|
||||
|
||||
}
|
||||
@@ -1,6 +0,0 @@
|
||||
package com.baeldung.finalkeyword;
|
||||
|
||||
public class BlackDog extends Dog {
|
||||
// public void sound() {
|
||||
// }
|
||||
}
|
||||
@@ -1,18 +0,0 @@
|
||||
package com.baeldung.finalkeyword;
|
||||
|
||||
public final class Cat {
|
||||
|
||||
private int weight;
|
||||
|
||||
public int getWeight() {
|
||||
return weight;
|
||||
}
|
||||
|
||||
public void setWeight(int weight) {
|
||||
this.weight = weight;
|
||||
}
|
||||
|
||||
public void methodWithFinalArguments(final int x) {
|
||||
// x=1;
|
||||
}
|
||||
}
|
||||
@@ -1,7 +0,0 @@
|
||||
package com.baeldung.finalkeyword;
|
||||
|
||||
public class Dog {
|
||||
|
||||
public final void sound() {
|
||||
}
|
||||
}
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user