public?void?testSort2(){
List<String>?stringList?=?new?ArrayList<String>();
Random?random?=?new?Random();
String?basic?=?"0123456789abcdefghijklmnopqrstuvwxyz"
+?"ABCDEFGHIJKLMNOPQRSTUVWXYZ";
for(int?i=0;i<10;i++){
StringBuffer?sb?=?new?StringBuffer();
int?num?=?random.nextInt(10)+1;
do{
??for(int?j=0;j<num;j++){
??int?number?=?random.nextInt(basic.length());
??sb.append(basic.charAt(number));
??}
????}while(stringList.contains(sb));
String?stringSb?=sb.toString();
????stringList.add(stringSb);
System.out.println("添加了字符串："+stringSb);
}
System.out.println("------------排序前-------------");
for?(String?string?:?stringList)?{
System.out.println("元素："+string);
}
Collections.sort(stringList);
System.out.println("------------排序后-------------");
for?(String?string?:?stringList)?{
System.out.println("元素："+string);
}
}
2016-04-25
我有個問題想要問你一下
這里面在任意規定字符串的長度的時候為什么不能用
而且我用的時候還報錯了？
2016-04-23
代碼給些注釋唄！
2016-04-01
對不起，沒看全，沒問題，是我理解錯了
2016-04-01
你去重有點問題；
?for(int j=0;j<num;j++){?
? ? ? ? do{
? ? ? ? ?//取basic內任意下標
? ? ? ? ? ? ?int number = random.nextInt(basic.length());
? ? ? ? ? ? ?sb.append(basic.charAt(number));
? ? ? ? ?
? ? ? ?}while(stringList.contains(sb));
? ? ? ?}
2016-03-29
import java.util.List;
import java.util.ArrayList;
import java.util.Random;
import java.util.Collections;
public class listContainTest {
?public List<String> dataList;
?public List<Character> characterList;
?
?public void initlizeCharacterList(){
??//數字字符
??for (Character c = '0'; c<='9'; c++){
???characterList.add(c);
??}
??//大寫字母
??for (Character c = 'A'; c<='Z'; c++){
???characterList.add(c);
??}
??//小寫字母
??for (Character c = 'a'; c<='z'; c++){
???characterList.add(c);
??}
?}
?/*
? * list、set、map聲明變量時，要在構造器中或其他地方進行初始化操作
? */
?public listContainTest(){
??dataList = new ArrayList<String>();
??characterList = new ArrayList<Character>();
?}
?/**
? * @param args
? */
?public static void main(String[] args) {
??// TODO Auto-generated method stub
??listContainTest lct = new listContainTest();
??lct.initlizeCharacterList();
??Random rand = new Random();
??for (int i=0; i<10; i++){
???String stTemp = "";
???do{
????int k = rand.nextInt(9)+1;
????for (int j=0; j<k; j++){
?????int ipos = rand.nextInt(lct.characterList.size());
?????stTemp += lct.characterList.get(ipos).toString();
????}
????//判斷字符串是否在字符串列表中
???}while(lct.dataList.contains(stTemp));
???lct.dataList.add(stTemp);
??}
??//打印未排序字符串
??System.out.println("---------未排序字符串---------------");
??for (int i=0; i<10; i++){
???System.out.println(lct.dataList.get(i));
??}
??
??//排序后字符串
??System.out.println("---------排序后字符串---------------");
??Collections.sort(lct.dataList);
??for (int i=0; i<10; i++){
???System.out.println(lct.dataList.get(i));
??}
?}
}