首页 > IT职业 > IT图书 > Java入门第三季 6-5 随机字符串
import java.util.*;
public class CollectionTest {
public void testSort(){
List
String k;
for (int i=0;i do{
k=randomString(10);
}
while(stringList.contains(k));
stringList.add(k);
}
System.out.println("------before sort--------");
for(String string: stringList){
System.out.println("element : " + string);
}
Collections.sort(stringList);
System.out.println("------After sort--------");
for(String string: stringList){
System.out.println("element : " + string);
}
}
public String randomString(int n) {
Random random = new Random();
String base = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
StringBuilder builder = new StringBuilder();
for(int i = 0; i }
来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/4741/viewspace-2798060/ ,如需转载,请注明出处,否则将追究法律责任。