package test;

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

import java.util.Random;

public class Testsort {

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

Random random=new Random();

String str="qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM0123456789";

void dataAdd() {

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

?StringBuilder st=new StringBuilder();

?int s=random.nextInt(10);

?for(int j=0;j<s+1;j++) {

int a=random.nextInt(62);

st.append(str.charAt(a));

?}

? if(lt.contains(st)) {

continue;

? }

? else {

? lt.add(st.toString());

? }

}

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

for(String show:lt) {

System.out.println(show);

}

Collections.sort(lt);

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

for(String show2:lt) {

System.out.println(show2);

}

}

public static void main(String[] args) {

new Testsort().dataAdd();

}

}