Java8 Lambda example

LambdaExample.java

import java.util.*;
import java.util.function.Block;
import java.util.function.Function;

/**
 * Created with IntelliJ IDEA.
 * User: Administrator
 * Date: 13/03/13
 * Time: 16:04
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 */
public class LambdaExample {

    static interface MyInterface {
        void yield(String s);
    }

    private static void doForAll(MyInterface mi) {
        for (String s : new String[]{"aaa", "bbb", "ccc"}) {
            mi.yield(s);
        }
    }

    private static <T, M> List<M> map(Function<T, M> f, Collection<T> collection) {
        Iterator<T> i = collection.iterator();
        ArrayList<M> list = new ArrayList<>();
        while (i.hasNext()) {
            T t = i.next();
            list.add(f.apply(t));
        }
        return list;
    }

    public static void main(String[] args) {

        doForAll((n) -> System.out.println(n));
        doForAll(System.out::println);

        System.out.println(map((s) -> "<" + s + ">", Arrays.asList("ppp", "qqq", "rrr")));
    }
}