What will be printed?


class ClassA {
    int x = 1;

    public void printX() {
        System.out.println(getX());
    }

    public int getX() {
     return x;
    }
}

class ClassB extends ClassA {
    int x = 2;

    public int getX() {
        return x + 1;
    }
}

public class Test {
    public static void main(String[] args) {
        ClassA a = new ClassB();
        System.out.println(a.x);
    }
    }

1
2
3
Compilation error

Explanation

The correct answer is 1. Since the type of variable is the class ClassA, the variables of this class hides the variables of the class ClassB when calling this variable through the reference with the type of ClassA