java 集合

package com.tedu.day1302;

import java.util.ArrayList;
import java.util.Collection;

public class Study_Collection {
    public static void main(String[] args) {
        //创建集合
        Collection<String> c1 = new ArrayList<String>();
        c1.add("刘德华");
        c1.add("郭富城");
        c1.add("张学友");
        c1.add("黎明");
        System.out.println(c1.toString());
        System.out.println("-----------------------------");
        System.out.println(c1.contains("aaa"));
        System.out.println(c1.remove("刘德华"));
        c1.clear();
        System.out.println(c1);
    }
}