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Strings are immutable

 
Greenhorn
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Hi wonderful people!

Studying String objects immutability I came across an example, this one:



The output is 12.

I understand the difference between concatenation and addition, but can you explain me why the result is 12 and not 123?
 
Nik Recort
Greenhorn
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My apologies, I have found this same topic here on the forums. I think you can delete this post.

Thanks anyway =)
 
Marshal
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No need to delete. Just link to the other post you found so others can get there too.
 
Ranch Hand
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Java String is immutable, String will Store the value in the form of object. String is immutable means that you cannot change the object itself, but you can change the reference to the object.
 
Nik Recort
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Ok, thank you Tim. Here is the link https://coderanch.com/t/667931/certification/String-Immutability-Java-OCA-Programmer.

Have a good day =)
 
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