"Super" keyword usage example in Java

public class First {

public static void main(String[] args) {
// TODO Auto-generated method stub
Third obj=new Third();
}

}

public class Second {

int i;

Second(int i){

this.i=i;

System.out.println("This is super class param constructor");

}

}

class Third extends Second{

Third(){

super(20);

System.out.println("The value of super calss variable i is " +super.i);

}

}

output:-

This is super class param constructor

The value of super calss variable i is 20