ArrayUtils.java

package com.stackoverflow;


/**
 * License: http://creativecommons.org/licenses/by-sa/2.5/
 *
 * @see http://stackoverflow.com/questions/80476/how-to-concatenate-two-arrays-in-java
 */
public class ArrayUtils {
	public static <T> T[] concat(T[] a, T[] b) {
	    final int alen = a.length;
	    final int blen = b.length;
	    @SuppressWarnings("unchecked")
		final T[] result = (T[]) java.lang.reflect.Array.
	            newInstance(a.getClass().getComponentType(), alen + blen);
	    System.arraycopy(a, 0, result, 0, alen);
	    System.arraycopy(b, 0, result, alen, blen);
	    return result;
	}
}