Does Java have mutable types for Integer, Float, Double, Long?

Question

I am in a situation where I want to use mutable versions of things like Integer. Do I have to use these classes (below) or does Java have something built in?

http://www.java2s.com/Code/Java/Data-Type/Amutableintwrapper.htm

Answer 1

You could always wrap the value in an array like int[] mutable = {1}; if including the code for a mutable wrapper class is too cumbersome.

Answer 2

Since JDK 1.5 java now has java.util.concurrent.atomic.AtomicInteger

This is a thread safe mutable integer, example of use:

final AtomicInteger value = new AtomicInteger(0); 

then later on:

value.incrementAndGet();