class Ctor2 {

public int x = 1;

public String y = null;

public Ctor2() {

x = 2;

}

public Ctor2(int arg) {

x = arg;

}

public Ctor2(String arg) {

y = arg;

}

public static void main(String[] args) {

Ctor2 t1 = new Ctor2();

System.out.println(t1.x);

Ctor2 t2 = new Ctor2(3);

System.out.println(t2.x);

Ctor2 t3 = new Ctor2("notnull");

System.out.println(t3.x);

System.out.println(t3.y);

}

}