multil.java

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/*
 *
 * @author g1.test1
 **/
class figure
{
 int l, b;
 figure(int x,int y)
 {
 l=x;
 b=y;

 }
}
 class rect extends figure
{

 rect(int x,int y)
 {
 super(x,y);

 }
 int disp()
 {
 return (l*b);
 }
}
 class tri extends rect
 {

 tri(int x,int y)
 {
 super(x,y);
 }
 int disp()
 {
 return (l*(b/2));
 }

 }
public class multil {
 public static void main(String args[])
 {tri obj=new tri(4,5);
 System.out.println(obj.disp());
 rect obj2=new rect(3,4);
 System.out.println(obj2.disp());
 }

}