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How to combine arrays in Java

Given two arrays:
int[] array1 = ...
int[] array2 = ...

It's possible to combine them into one like so:
int[] arrayCombined = new int[array1.length + array2.length];

// copy array1 to beginning of arrayCombined
System.arraycopy(array1, 0, arrayCombined, 0, array1.length);

// copy array2 after array1
System.arraycopy(array2, 0, arrayCombined, array1.length, array2.length);

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