Add Java code to move zeroes in array

[hirushi1999]

Hi @Nikhil-2002, I would like to contribute a Java example for Hacktoberfest 2025 that moves all zeros in an integer array to the end while keeping the relative order of non-zero elements. The solution will modify the array in-place without using extra space. Please let me know if I can proceed.

[SUDIPTO-2005]

Pls assign this work to me

[Sa-sketch-max]

@Nikhil-2002 plss asign this work to me i have done this type of questions before. I can also give clear documentation.