ThisSuper.java

class ThisSuper{
    
    public static void main(String A[]) {
            Derived dobj = new Derived();

            dobj.gun();
    }
     
    
}

class Base {
    public int i;
    public int j;

    public Base(){
        System.out.println(" Inside Base Constructor");    
        this.i = 11;                         // here, use of 'this' is optional
        this.j = 21;
    }

    public void fun(){
        System.out.println("Inside Base fun");
    }
}


class Derived extends Base{
    public int x;

    public Derived(){
        System.out.println(" Inside Derived Constructor");    
        this.x = 51;                         // use of this is optional
    }
    
    public void gun(){
        System.out.println("Inside Derived gun");
        
        System.out.println("Value of i = "+super.i);           // Super - used to access form Base class
        System.out.println("Value of j = "+super.j);
        System.out.println("Value of x = "+this.x);            // this - used to access from the same class as of the function we are calling
    
    }

}