class Super_class{
int num = 20;
//display
method of superclass
public void display(){
System.out.println("This is the display method
of superclass");
}
}
public class Sub_class
extends Super_class {
int num = 10;
//display
method of sub class
public void display(){
System.out.println("This is the display method
of subclass");
}
public void my_method(){
//Instantiating
subclass
Sub_class sub = new Sub_class();
//Invoking
the display() method of sub class
sub.display();
//Invoking
the display() method of superclass
super.display();
//printing
the value of variable num of subclass
System.out.println("value of the variable named num in sub class:"+ sub.num);
//printing
the value of variable num of superclass
System.out.println("value of the variable named num in super class:"+ super.num);
}
public static void main(String args[]){
Sub_class obj = new Sub_class();
obj.my_method();
}
}