it is my work

LCAPP.java

@@ -0,0 +1,65 @@
+class Value
+{
+   int a,b;
+   void setValue(int x,int y)
+   { a=x;
+     b=y;
+   }  
+   int getResult()
+   {  return 0;
+   }
+}
+class Add extends Value 
+{
+  int getResult(){
+    return a+b;
+  }
+}
+class Mul extends Value
+{
+   int getResult(){
+    return a*b;
+  }
+}
+class Sub extends Value{
+
+	int getResult(){
+		  return a-b;
+	}
+}
+class Div extends Value 
+{
+	  int getResult(){
+		  return a/b;
+	  }
+}
+class Calculator
+{
+   void performOperation(Value v,String type)
+   {
+      int result= v.getResult();
+	  System.out.println(type+"\t"+result);
+   }
+}
+public class LCAPP
+{
+   public static void main(String x[])
+   {
+     Calculator c = new Calculator();
+	 Value v=null;
+	 v=new Add();
+	  v.setValue(10,20);
+	  c.performOperation(v,"Addition");
+	  v=new Mul();
+	  v.setValue(5,4);
+	  c.performOperation(v,"Multiplication");
+
+	  v=new Sub();
+	  v.setValue(10,5);
+	  c.performOperation(v,"Substraction");
+
+	  v=new Div();
+	  v.setValue(10,2);
+	  c.performOperation(v,"Division");
+   }
+}