Object Superclass

public class P {
    private int x;
    public P(int x) { this.x = x; }
    public boolean equals(Object o) {
        if (!(o instanceof P)) return false;
        return ((P) o).x == this.x;
    }
}
// ...
P a = new P(3);
P b = new P(4);
System.out.println(a.equals(b));

• A

  false

  check_circle
• B

  true

• C

  3

• D

  4