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Author: disha2sinha

Methods/MethodOverriding1.java

@@ -0,0 +1,60 @@
+class A {
+    int i, j;
+
+    A() {
+
+    }
+
+    A(int a, int b) {
+        i = a;
+        j = b;
+    }
+
+    void Showij() {
+        System.out.println("A's i=" + i);
+        System.out.println("A's j=" + j);
+    }
+}
+
+class B extends A {
+    int k;
+
+    B(int a, int b, int c) {
+        i = a;
+        j = b;
+        k = c;
+    }
+
+    void Showij() {
+        System.out.println("B's i=" + i);
+        System.out.println("B's j=" + j);
+
+    }
+    
+    void Showk() {
+        System.out.println("k=" + k);
+    }
+}
+
+/**
+ * SingleInheritence
+ */
+class MethodOverriding1 {
+    public static void main(String[] args) {
+        //If a Parent type reference refers 
+        // to a Parent object, then Parent's 
+        // Showij is called 
+        A obj=new A(20,30);
+        obj.Showij();
+        // If a Parent type reference refers
+        // to a Child object Child's show()
+        // is called. This is called RUN TIME
+        // POLYMORPHISM.
+
+        A obj1=new B(12,45,78);
+        obj1.Showij();
+        B subobj=new B(5,10,15);
+        subobj.Showij();
+        subobj.Showk();
+    }
+}