package?ujn.edu.collection;

import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.List;
import?java.util.Random;

public?class?Collection?{
????public?void?testSortString(){
????????List<String>?stringslist?=?new?ArrayList<String>();
????????Random?random?=?new?Random();
????????for?(int?i?=?0;?i?<?10;?i++)?{
????????????Integer?strsize?=?random.nextInt(10)+1;
????????????String??temp?=?"";
????????????char?c1;
????????????for?(;strsize>0;strsize--){
????????????????do?{
????????????????????int?i1?=?random.nextInt(128);
????????????????????c1?=?(char)?i1;
????????????????}while(!('0'<=c1&&c1<='9'||'A'<=c1&&c1<='Z'||'a'<=c1&&c1<='z'));
????????????????temp?+=?c1;

????????????}
????????????if(!stringslist.contains(temp))
????????????????stringslist.add(temp);
????????????else?i--;
????????}
????????System.out.println("排序前--------------");
????????for?(String?str:stringslist
?????????????)?{
????????????System.out.println(str);
????????}
????????Collections.sort(stringslist);
????????System.out.println("排序后--------------");
????????for?(String?str:stringslist
????????)?{
????????????System.out.println(str);
????????}
????}

????public?static?void?main(String[]?args)?{
????????Collection?collection?=?new?Collection();
????????collection.testSortString();
????}
}