Added divide function and unit tests

Operations.ctxt

@@ -0,0 +1,15 @@
+#BlueJ class context
+comment0.target=Operations
+comment1.params=x\ y
+comment1.target=int\ add(int,\ int)
+comment1.text=\n\ The\ addition\ function.\n\ @param\ x\ The\ first\ operand\n\ @param\ y\ The\ second\ operand\n\ @return\ the\ sum\ of\ x\ and\ y\n
+comment2.params=x\ y
+comment2.target=int\ subtract(int,\ int)
+comment2.text=\n\ The\ subtraction\ function\n\ @param\ x\ The\ first\ operand\n\ @param\ y\ The\ second\ operand\n\ @return\ y\ taken\ from\ x\n
+comment3.params=x\ y
+comment3.target=int\ multiply(int,\ int)
+comment3.text=\n\ The\ multiplication\ function\n\ @param\ x\ The\ first\ operand\n\ @param\ y\ The\ second\ operand\n\ @return\ x\ times\ y\n
+comment4.params=x\ y
+comment4.target=int\ divide(int,\ int)
+comment4.text=\n\ The\ divide\ function.\n\ @param\ x\ The\ first\ operand\n\ @param\ y\ The\ second\ operand\n\ @return\ the\ division\ of\ x\ and\ y\n
+numComments=5

Operations.java

@@ -30,4 +30,14 @@ public class Operations {
     public static int multiply(int x, int y) {
         return x * y;
     }
+    
+    /**
+     * The divide function.
+     * @param x The first operand
+     * @param y The second operand
+     * @return the division of x and y
+     */
+    public static int divide(int x, int y) {
+        return x / y;
+    }
 }

OperationsTest.ctxt

@@ -0,0 +1,11 @@
+#BlueJ class context
+comment0.target=OperationsTest
+comment1.params=
+comment1.target=void\ testAdd()
+comment2.params=
+comment2.target=void\ testSubtract()
+comment3.params=
+comment3.target=void\ testMultiply()
+comment4.params=
+comment4.target=void\ testDivide()
+numComments=5

OperationsTest.java

@@ -16,4 +16,9 @@ public class OperationsTest {
     public void testMultiply() throws Exception {
         Assert.assertEquals(4, Operations.multiply(2, 2));
     }
+    
+    @Test
+    public void testDivide() throws Exception {
+        Assert.assertEquals(1, Operations.divide(2, 2));
+    }
 }