Practice›Java Fundamentals›Module 7. Inheritance & Polymorphism›7.3 Object and equals

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7.3 Object and equals — override equals

Total: 0 / 4 pts

Practice mode — check each part and get hints as you go.

Task

Complete Point by overriding equals so that two points with the same coordinates count as equal.

The parameter type must be Object — that is the signature being overridden. Check the type first, then compare.

The program prints false (different objects), true (same contents), false (not a Point at all).

Your solution

// Complete the class so that two points with the same coordinates are equal.

class Point {
    private int x;
    private int y;

    public Point(int x, int y) {
        this.x = x;
        this.y = y;
    }

    // write equals here

}

public class Main {
    public static void main(String[] args) {
        Point a = new Point(3, 4);
        Point b = new Point(3, 4);
        System.out.println(a == b);
        System.out.println(a.equals(b));
        System.out.println(a.equals("hello"));
    }
}

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