Adding two Arrays

[Mayur]

Hello all. I need some help adding two arrays together. I'm not allowed to use java foundation classes. This is what I have so far but I keep getting array out of bounds error and can't seem to figure out why.

	public static String[] union2(String[] a, String[] b) {
		int l1 = a.length;
		int l2 = b.length;
		int n = l1 + l2;
		int n2 = l1-1;
		String[] output = new String[l1];
		System.arraycopy(a, 0, output, 0, l1);
//		System.arraycopy(b, 0, output, l1, n);
		System.arraycopy(b, 0, output, n2, n);
		return output;
	}

[Mayur]

Nevermind, I got it working :)