JDK1.8--遍历一个集合取集合中对象的值

xl_echo编辑整理

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开发工具IDEA

package com.echo.demo;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by Xlecho on 2018/6/4/004
 */
public class A {

  public static void main(String[] args){
    List<B> list = new ArrayList<>();
    B a = new B();
    a.setAge(22);
    a.setName("a");
    list.add(a);

    B a1 = new B();
    a1.setAge(22);
    a1.setName("a1");
    list.add(a1);

    list.forEach(aa -> {
      System.out.println(aa.getAge() + aa.getName());
    });
  }

  static class B{
    private Integer age;
    private String name;
    public void setAge(Integer age){
      this.age = age;
    }
    public Integer getAge(){
      return age;
    }
    public void setName(String name){
      this.name = name;
    }
    public String getName(){
      return name;
    }
  }

}

输出结果