Pass Function as Argument in Java 8

Last time I posted about How to pass function as argument in Java this version using java before java 8, today java 8 is just released, I will update the previous code to use java. It kinds of cool now. :D

import java.util.function.Function;

public class BinaryTest {

	public static void main(String[] args) {

		byte[] bs = "gailo".getBytes();

		System.out.println("oct: " + toString(bs, (x) -> Integer.toString(x)));

		System.out.println("binary: " + toString(bs, Integer::toBinaryString));

		System.out.println("hex: " + toString(bs, Integer::toHexString));

	}

	private static String toString(byte[] bs, Function<Integer, String> function) {
		StringBuilder sb = new StringBuilder();
		for (byte b : bs) {
			sb.append(function.apply(new Integer(b)));
			sb.append(" ");
		}
		return sb.toString();
	}

}