jone741852963的专栏

利用jstl标签functions的prefix属性的length属性值 1.首先在jsp页面导入jstl function标签 2.比如集合为messagelist ${fn:length(messagelist) } 这样即可输出messagelist集合的长度了额！

NewsInfo.java public class NewsInfo { private int newId; private String newTitle; private String newContent; private String newDate; public NewsInfo(int newId, String newTitle, String newCont

package p168_6; import java.sql.Array; import java.util.Random; public class Main_test { public static void main(String[] args) { Random random = new Random(); boolean charge = false; int n = 0

import java.text.DateFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Scanner; public class Main { public static void main(String[]