How do I reverse an int array in Java?

Question

I am trying to reverse an int array in Java.

This method does not reverse the array.

for(int i = 0; i < validData.length; i++)
{
    int temp =          


        

Answer 1

Collections.reverse(Arrays.asList(yourArray));

java.util.Collections.reverse() can reverse java.util.Lists and java.util.Arrays.asList() returns a list that wraps the the specific array you pass to it, therefore yourArray is reversed after the invocation of Collections.reverse().

The cost is just the creation of one List-object and no additional libraries are required.

A similar solution has been presented in the answer of Tarik and their commentors, but I think this answer would be more concise and more easily parsable.