ThisDemo2

class Main {
    public static void main(String[] args) {
        ThisDemo td = new ThisDemo();
        td.get();
    }
}

class ThisDemo{
    int a;
    int b;
    
    public ThisDemo(){
        a = 10;
        b = 20;
    }
    
    public void display(ThisDemo obj){
        System.out.print("a = "+a+" b = "+b);
    }
    
    public void get(){
        display(this);
    }
}