How can a Java variable be different from itself?

Question

I am wondering if this question can be solved in Java (I\'m new to the language). This is the code:

class Condition {
    // you can change in the main
    p         


        

Answer 1

There are so many solutions:

class A extends PrintStream {
    public A(PrintStream x) {super(x);}
    public void println(String x) {super.println("Not ok");}
    public static void main(String[] args) {
        System.setOut(new A(System.out));
        int x = 0;
        if (x == x) {
            System.out.println("Ok");
        } else {
            System.out.println("Not ok");
        }
    }
}