Comparable interface implementation

Comparator.java

package me.ilies;

/**
 * Created by iliesa on 05.09.2016.
 */
public class Apple implements Comparable<Apple> {
    private String variety;
    private String color;
    private int weight;

    @Override
    public int compareTo(Apple o) {
        int result = this.variety.compareTo(o.variety);
        if (result != 0){
            return result;
        }
        if(result == 0){
            result = this.color.compareTo(o.color);
        }
        if(result != 0){
            return result;
        }

        if( result == 0){
            result = Integer.compare(this.weight, o.weight);
        }
        return result;
    }
}