Java8 Lambda

package com.qhong;

public class Main {
    public static void main(String[] args) throws Exception {
        new Thread(new Runnable(){
            @Override
            public void run(){
                System.out.println("Before Java8");
            }
        }).start();

        new Thread(()->System.out.println("In Java8")).start();
    }
}

Before Java8
In Java8

package com.qhong;

import java.util.Arrays;
import java.util.List;

public class Main {
    public static void main(String[] args) throws Exception {
        List<String> list= Arrays.asList("a","b","c");
        for(String str:list){
            System.out.println(str);
        }
        System.out.println("----------------");
        list.forEach(x->System.out.println(x));
        System.out.println("----------------");
        list.forEach(System.out::println);
    }
}

a
b
c
----------------
a
b
c
----------------
a
b
c