should be even faster (size only called once)

gistfile1.java

public static void main(String[] args) {
		int iterations = 1000000;
		Object[] items = {"foo", 23, true};
		int size = items.length;
		Object[] absoluteResult = new Object[iterations*size];
		long before = System.currentTimeMillis();
		for (int i=0; i < iterations; i++) {
			for (int j=0 ; j< size; j++) {
				absoluteResult[3*i+j]=foo(items[j]);
			}
		}
		System.out.println("Took : "+(System.currentTimeMillis() - before)
			+" ms, number of elements : "+absoluteResult.length);
	}

	static String foo(Object s) {
		if (s instanceof String) {
			return "String";
		} else if (s instanceof Boolean) {
			return "Boolean";
		} else if (s instanceof Integer) {
			return "Integer";
		} else {
			throw new IllegalArgumentException();
		}
	}