// The MIT License (MIT)

//

// Copyright (c) 2016 Robert C. Seacord

//

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to deal

// in the Software without restriction, including without limitation the rights

// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

// copies of the Software, and to permit persons to whom the Software is

// furnished to do so, subject to the following conditions:

//

// The above copyright notice and this permission notice shall be included in all

// copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

// SOFTWARE.

package MET08J;

import com.google.common.testing.EqualsTester;

import java.util.Objects;

public class Card {

private final int number;

public Card(int number) {

this.number = number;

}

@Override

public boolean equals(Object o) {

if (this == o) return true;

if (!(o instanceof Card)) return false;

Card card = (Card) o;

return number == card.number;

}

@Override

public int hashCode() {

return Objects.hash(number);

}

public static void main(String[] args) {

Card p1 = new Card(1);

Card p2 = new Card(1);

Card p3 = new Card(1);

Card p4 = new Card(2);

Card p5 = new Card(2);

System.out.println(p1.equals(p2)); // Returns true

System.out.println(p2.equals(p3)); // Returns true

System.out.println(p1.equals(p3)); // Returns true

new EqualsTester()

.addEqualityGroup(p1, p2, p3)

.addEqualityGroup(p4, p5)

.testEquals();

} // end main

} // end class