package com.class6;

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

import java.util.Random;

public static void main(String[] args) {

// TODO Auto-generated method stub

CollectionsTest ct=new CollectionsTest();

ct.testSort3();

}

public void testSort3() {

List<String> stringList=new ArrayList<String>();

StringBuilder s=new StringBuilder("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");

Random random=new Random();

int stringLength;

for(int i=0;i<10;i++) {

stringLength=(int) (Math.random()*10+1);

StringBuilder randomString=new StringBuilder(stringLength);

for(int j=0;j<stringLength;j++) {

int randomCharIndex=(int)(Math.random()*62);

char randomChar=s.charAt(randomCharIndex);

randomString.append(randomChar);

}

stringList.add(randomString.toString());

}

System.out.println("----------排序前-----------");

for (String string : stringList) {

System.out.println("元素："+string);;

}

System.out.println("-----------排序后----------");

Collections.sort(stringList);

for (String string : stringList) {

System.out.println("元素："+string);;

}

}