Kode Java

 
package org.kodejava.example.commons.lang;
 
import org.apache.commons.lang.builder.CompareToBuilder;
 
public class CompareToExample {
    public static void main(String[] args) {
        Fruit orange = new Fruit("Orange", "Orange");
        Fruit watermelon = new Fruit("Watermelon", "Red");
        
        if (orange.compareTo(watermelon) == 0) {
            System.out.println(orange.getName() + " == " + watermelon.getName());
        } else {
            System.out.println(orange.getName() + " != " + watermelon.getName());            
        }
    }
}
 
class Fruit {
    private String name;
    private String colour;
    
    public Fruit(String name, String colour) {
        this.name = name;
        this.colour = colour;
    }
    
    public String getName() {
        return name;
    }
 
    /*
     * Generating compareTo() method using CompareToBuilder class. For other
     * alternative way we can also use the reflectionCompare() method to 
     * implement the compareTo() method.
     */    
    public int compareTo(Object o) {
        Fruit f = (Fruit) o;
        return new CompareToBuilder()
                .append(this.name, f.name)
                .append(this.colour, f.colour)
                .toComparison();
    }
}
 
 

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