Write a program that defines a shape class with a constructor that gives value to width and height. The define two sub-classes triangle and rectangle, that calculate the area of the shape area (). In the main, define two variables a triangle and a rectangle and then call the area() function in this two variables Test Case 1 Input (stdin) 5 6 Expected Output 30 15 Test Case 2 Input (stdin) 2 10 Expected Output 20 10

Program :

import java.util.*;

public class TestClass {

public static void main(String[] args) {

int a,b;

       Scanner in=new Scanner(;