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[JAVA-621] Obsolete modules deletion

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* Delete core-java-lang-oop module (remaining code
was duplicate of core-java-lang-syntax where it really belonged)

* Moved code from https://www.baeldung.com/java-eclipse-equals-and-hashcode to core-java-lang where it belong

* Delete core-java-lang-oop-2 module

* Delete core-java-lang-oop-3 module

* Delete core-java-lang-oop-4 module
This commit is contained in:
dupirefr
2020-04-04 12:24:39 +02:00
parent 9b6d3ae24f
commit 635ecae691
24 changed files with 0 additions and 428 deletions
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63
core-java-modules/core-java-lang/src/main/java/com/baeldung/equalshashcode/entities/ComplexClass.java Normal file
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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;
}
}

54
core-java-modules/core-java-lang/src/main/java/com/baeldung/equalshashcode/entities/PrimitiveClass.java Normal file
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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;
}
}

58
core-java-modules/core-java-lang/src/main/java/com/baeldung/equalshashcode/entities/Rectangle.java Normal file
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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;
}
}

7
core-java-modules/core-java-lang/src/main/java/com/baeldung/equalshashcode/entities/Shape.java Normal file
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package com.baeldung.equalshashcode.entities;
public abstract class Shape {
public abstract double area();
public abstract double perimeter();
}

58
core-java-modules/core-java-lang/src/main/java/com/baeldung/equalshashcode/entities/Square.java Normal file
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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;
}
}

33
core-java-modules/core-java-lang/src/test/java/com/baeldung/equalshashcode/entities/ComplexClassUnitTest.java Normal file
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package com.baeldung.equalshashcode.entities;
import org.junit.Assert;
import org.junit.Test;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
public class ComplexClassUnitTest {
@Test
public void testEqualsAndHashcodes() {
List<String> strArrayList = new ArrayList<String>();
strArrayList.add("abc");
strArrayList.add("def");
ComplexClass aObject = new ComplexClass(strArrayList, new HashSet<Integer>(45, 67));
ComplexClass bObject = new ComplexClass(strArrayList, new HashSet<Integer>(45, 67));
List<String> strArrayListD = new ArrayList<String>();
strArrayListD.add("lmn");
strArrayListD.add("pqr");
ComplexClass dObject = new ComplexClass(strArrayListD, new HashSet<Integer>(45, 67));
Assert.assertTrue(aObject.equals(bObject) && bObject.equals(aObject));
Assert.assertTrue(aObject.hashCode() == bObject.hashCode());
Assert.assertFalse(aObject.equals(dObject));
Assert.assertFalse(aObject.hashCode() == dObject.hashCode());
}
}

23
core-java-modules/core-java-lang/src/test/java/com/baeldung/equalshashcode/entities/PrimitiveClassUnitTest.java Normal file
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package com.baeldung.equalshashcode.entities;
import org.junit.Assert;
import org.junit.Test;
public class PrimitiveClassUnitTest {
@Test
public void testTwoEqualsObjects() {
PrimitiveClass aObject = new PrimitiveClass(false, 2);
PrimitiveClass bObject = new PrimitiveClass(false, 2);
PrimitiveClass dObject = new PrimitiveClass(true, 2);
Assert.assertTrue(aObject.equals(bObject) && bObject.equals(aObject));
Assert.assertTrue(aObject.hashCode() == bObject.hashCode());
Assert.assertFalse(aObject.equals(dObject));
Assert.assertFalse(aObject.hashCode() == dObject.hashCode());
}
}

25
core-java-modules/core-java-lang/src/test/java/com/baeldung/equalshashcode/entities/SquareClassUnitTest.java Normal file
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package com.baeldung.equalshashcode.entities;
import org.junit.Assert;
import org.junit.Test;
import java.awt.*;
public class SquareClassUnitTest {
@Test
public void testEqualsAndHashcodes() {
Square aObject = new Square(10, Color.BLUE);
Square bObject = new Square(10, Color.BLUE);
Square dObject = new Square(20, Color.BLUE);
Assert.assertTrue(aObject.equals(bObject) && bObject.equals(aObject));
Assert.assertTrue(aObject.hashCode() == bObject.hashCode());
Assert.assertFalse(aObject.equals(dObject));
Assert.assertFalse(aObject.hashCode() == dObject.hashCode());
}
}