Princeton1/common/src/main/java/com/hithomelabs/princeton1/common/Apple.java

package com.hithomelabs.princeton1.common;

import java.util.Comparator;
import java.util.Objects;

public class Apple implements Comparable<Apple> {
    private int size;
    public static Comparator<Apple> COMPARE_BY_SIZE = new Comparator<Apple>() {
        @Override
        public int compare(Apple a1, Apple a2) {
            if(a1.size < a2.size) return -1;
            else if (a1.size == (a2.size)) return 0;
            else return 1;
        }
    };

    public Apple(int size) {
        this.size = size;
    }

    @Override
    public boolean equals(Object obj) {
        if(this == obj) return true;
        if (obj == null || this.getClass() != obj.getClass())
            return false;
        Apple that = (Apple) obj;
        return Objects.equals(this.size, that.size);
    }

    @Override
    public int hashCode() {
        return Objects.hash(size);
    }

    @Override
    public String toString() {
        return "An apple of size " + size;
    }

    @Override
    public int compareTo(Apple that) {
        if (this.size < that.size) return -1;
        else if (this.size == that.size) return 0;
        else return 1;
    }
}