Alphanumeric String Sort; Array Pair Sum; Array Sum - Java solution #121
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A Java solution for the Alphanumeric String Sort problem.
Also a Java solution for the Array Pair Sum problem, since the Java solution that is in the project for this problem, doesn't actually do what is supposed to do. For example, instead of outputting the pair [4,4] three times for that test case, that solution only outputs it two times.
My solution performs as is specified in the readme of the problem, as you can verify with the unit tests that I'm including in my commit too :)
EDIT 1: Added a Java solution for the Array Sum problem too ;)