Hi Friend,

Try the following code:

class Shape {
int x,y;
void area(){
}
}
class Square extends Shape {
int l=2;
void area() {
System.out.println(l*l);
}
}
class Rectangle extends Shape {
int l=2,b=3;
void area() {
System.out.println(l*b);
}
}
class Circle extends Shape {
int radius=5;
void area() {
System.out.println(3.14*radius*radius);
}
}
class Polymorphism {
public static void main(String[] args) {
Shape shapes[] = new Shape[4];
shapes[0]= new Shape();
shapes[1] = new Square();
shapes[2] = new Rectangle();
shapes[3] = new Circle();

for(int i=0;i<shapes.length;i++) {
shapes[i].area();
}
}
}

For more information, visit the following link:

http://www.roseindia.net/java/javascript-array/modified-java-method-overriding.shtml
http://www.roseindia.net/java/master-java/method_overloading.shtml
http://www.roseindia.net/answers/viewanswers/215.html

Thanks