Comparing UUID's

I'm trying to send a message to everyone, if a UUID matches. Here is the code below:

Code:

UUID playerUUID = player.getUniqueId();
        String rbgUUID = "f4e97005-b497-44ad-9f45-94ac5ffd2ddd";

        if(playerUUID == rbgUUID){
            player.sendMessage("Something Here");
        }else{
            player.sendMessage("Something Else");
        }

 

@RickyBGamez You are checking if a UUID is equal to a String. This will never be true. Either convert playerUUID to a String, or convert rbdUUID to a UUID. If you are comparing the Strings, then use Object#equals(Object object)

 

@RickyBGamez
'==' only works for comparing primitive times and enums. For Strings use .equals()

 

@uksspy The == operator works in a different way. It will almost never work for Strings. For those you should use #equals(). But I've ninja'd you

 

@uksspy Just for the record, == works for objects if and only if they are exactly the same object, if it's another object with the same contents it will return false

 

Ok, but how would I do this? How would I make rbgUUID into a UUID instead of String.

 

@RickyBGamez UUID#fromString(String string)

 

Alright, thanks!

 

@RickyBGamez No problem! Glad you solved it!

 

@Konato_K Right, thanks for clearing that up, I should have mentioned it.

 

@RickyBGamez Please mark your thread as solved! See this for more info.

 

Nope, if you want to directly compare them, you've got two ways:
a) Get both as String and make equal:

Code:

        UUID playerUUID = player.getUniqueId();
        String rbgUUID = "f4e97005-b497-44ad-9f45-94ac5ffd2ddd";

        if(playerUUID.toString() == rbgUUID){
            player.sendMessage("Something Here");
        }else{
            player.sendMessage("Something Else");
        }

or
b) Get both as UUID and check for equality with UUID#equals:

Code:

        UUID playerUUID = player.getUniqueId();
        String rbgUUID = "f4e97005-b497-44ad-9f45-94ac5ffd2ddd";
        UUID rbgUUIDo = UUID.fromString(rbgUUID);

        if(playerUUID.equals(rbgUUIDo)){
            player.sendMessage("Something Here");
        }else{
            player.sendMessage("Something Else");
        }

Because new Object("as") and new Object("as") aren't the same. (Except Exceptions.)

 

@decontamin4t0R No, you should NEVER compare Strings with ==

 

@decontamin4t0R

Why are you posting something that is completely wrong? Strings will (almost) never be equal using the equality operator, as it will compare the equality of the references of the Objects, not the contents of the Objects. Use String#equals(Object) to compare Strings.


@Konato_K

Unless you never want the comparison to be true, I suppose.