package com.qiu.lin.he;
import java.util.ArrayList;
import java.util.List;
public class Ceshi {
public static void main(String[] args) {
List
list.add("a");
list.add("b");
list.add("c");
System.out.println("未修改前:");
for (String s : list) {
System.out.println(s);
}
list.set(0, "修改之后的元素");//修改对应的元素
System.out.println("已修改后:");
for (String s : list) {
System.out.println(s);
}
}
}
