Question

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Returning false from Equals methods without Overriding

One of my colleague asked me a question today as mentioned below

Write TestEquals class(custom or user defined class) so that the below s.o.p in the code prints false.

public class Puzzle3 {
  public static void main(String[] args) {
    TestEquals testEquals = new TestEquals();
    System.out.println(testEquals.equals(testEquals));
  }
}

Note: You cannot override equals method.

I thought a lot but couldn’t find the solution without overriding equals.Does anybody have any idea how it can be done?

Answer 1

use

public boolean equals(TestEquals equals) {
    return false
}

To override equals you need the input parameter to be of type object so the above code snippet theorectially is not overriding equals from the object method