Java 集合 之 List 和 ArrayList

http://www.verejava.com/?id=1699409760261

package com.obj;

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

public class TestList
{
    public static void main(String[] args)
    {
        List list=new ArrayList();
        //添加
        list.add(new Person("zhangshan",30));
        list.add(new Person("lishi",40));
        
        //删除
        
        //修改
        
        //遍历
        System.out.println("以索引方式遍历");
        for(int i=0;i<list.size();i++)
        {
            Person p=(Person)list.get(i);
            System.out.println(p.getName()+","+p.getAge());
        }
        System.out.println("以迭代器方式输出");
        Iterator iter=list.iterator();
        while(iter.hasNext())
        {
            Person p=(Person)iter.next();
            System.out.println(p.getName()+","+p.getAge());
        }
    }
}





package com.obj;

public class Person
{
    private String name;
    private int age;
    
    public Person(String name,int age)
    {
        super();
        this.name = name;
        this.age=age;
    }

    public String getName()
    {
        return name;
    }

    public void setName(String name)
    {
        this.name = name;
    }

    public int getAge()
    {
        return age;
    }

    public void setAge(int age)
    {
        this.age = age;
    }
    
    
    
}

http://www.verejava.com/?id=1699409760261