Java新特性解读JDK8之forEach

    //Stream接口
    void forEach(Consumer<? super T> action);
    //Iterable接口
     default void forEach(Consumer<? super T> action) {
        Objects.requireNonNull(action);
        for (T t : this) {
            action.accept(t);
        }
    }

package com.example.streamdemo;


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


public class ForEachDemo {
  public static void main(String[] args) {
    List<Integer> list = Arrays.asList(1,2,3);
    list.forEach(obj->System.out.println(obj));
    list.stream().forEach(obj->System.out.println(obj));
  }
}