JDK8 sample code (not working)

Main.java

// JDK8 sample (not working) with java[c] 1.8.0-ea downloaded on the 06 of february, 2013
import java.util.*;

public class Main
{
	public static void main(String[] args){
		List<String> list = new ArrayList<>();

		list.add("pof");
		list.add("pouf");
		list.add("paf");
		list.add("pif");
		list.add("bleh");

		list.stream().map( s -> s.substring(0,1));
	}
}