package Gather.List;

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

/**
 * @author 小王宝友
 * @version 3.89
 * List集合练习
 */
public class ListExercise {
    public static void main(String[] args) {
        @SuppressWarnings({"all"})
        List list = new ArrayList<>();
        for (int i = 0; i < 13; i++) {
            list.add("hello"+i);
        }
        System.out.println("list="+list);
        //在2号位插入一个元素
        list.add(1,"city");
        System.out.println("list="+list);
        //获得第五个元素
        System.out.println("第五个元素为："+list.get(4));
        //删除第六个元素
        list.remove(5);
        System.out.println("list="+list);
        //修改第七个元素
        list.set(6,"乌拉！");
        System.out.println("list="+list);
        Iterator iterator = list.iterator();
        while (iterator.hasNext()) {
            Object object =  iterator.next();
            System.out.println("object="+object);
        }




    }
}