Define your own equals method : equals « Class Definition « Java Tutorial

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Java Tutorial » Class Definition » equals

5. 19. 4. Define your own equals method


class MyClass {

  private String name;



  MyClass(String name) {

    this.name = name;

  }



  public boolean equals(Object o) {

    if (!(o instanceof MyClass))

      return false;



    MyClass c = (MyClass) o;



    return name.equals(c.name);

  }

}



class EqualityDemo {

  public static void main(String[] args) {

    MyClass c1 = new MyClass("S");

    MyClass c2 = new MyClass("S");

    MyClass c3 = new MyClass("M");



    System.out.println("c1.equals (c2): " + c1.equals(c2));

    System.out.println("c1.equals (c3): " + c1.equals(c3));

  }

}

5. 19. equals
	5. 19. 1.	Comparing Objects
	5. 19. 2.	Implement equals method using commons-lang
	5. 19. 3.	Use CompareToBuilder class to create compareTo method for your own class
	5. 19. 4.	Define your own equals method

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