Moved project to core-java from eclipse folder (#703)

core-java/src/test/java/org/baeldung/equalshashcode/entities/ComplexClassTest.java

@@ -0,0 +1,33 @@
+package org.baeldung.equalshashcode.entities;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class ComplexClassTest {
+
+    @Test
+    public void testEqualsAndHashcodes() {
+
+        ArrayList<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));
+
+        ArrayList<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());
+    }
+
+}

core-java/src/test/java/org/baeldung/equalshashcode/entities/PrimitiveClassTest.java

@@ -0,0 +1,23 @@
+package org.baeldung.equalshashcode.entities;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class PrimitiveClassTest {
+
+    @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());
+    }
+
+}

core-java/src/test/java/org/baeldung/equalshashcode/entities/SquareClassTest.java

@@ -0,0 +1,26 @@
+package org.baeldung.equalshashcode.entities;
+
+import java.awt.Color;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class SquareClassTest {
+
+    @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());
+    }
+
+}