Home Home » Java » Java Core » [Java] - The diferrence ==, equals

[Java] - The diferrence ==, equals

Monday, January 22, 2018
What is the difference between " ==" operator, .equals() and compare().

1. The difference == and .equals method

+ The == operator use for reference compare (Address Compare).
+ The .equals method use content comparison.

Example:
        String helloWorld = new String("HELLO");
        String helloWorld1 = new String("HELLO");
      
        String s1 = "HELLO";
        String s2 = "HELLO";
        System.out.println(helloWorld == helloWorld1);
        System.out.println(helloWorld.equals(helloWorld1));
      
        System.out.println(s1 == s2);
        System.out.println(s1.equals(s2)); 

Results:
false
true
true
true




Chia sẻ bài viết
Bài liên quan

Comments[ 0 ]


Post a Comment