问题描述 大神帮看下我的代码哪里错了? 题目是编写程序,读入未指定个数的整数,判断读入的正数和负数分别有多少个,然后计算这些输入值的总和及其平均值(不对0计数).当输入为0时,表明程序结束.将平均值以浮点数显示. import java.util.Scanner; public class TextXXXXX { public static void main (String[] args){ Scanner input = new Scanner(System.in); int count1
问题描述 java 调用cmd 执行读取sql文件问题?求大神帮看下 Runtime run =Runtime.getRuntime(); Process process = run.exec("cmd /cmysql -u root -pssdlh test <d:/test.sql"); InputStreamReader ir = new InputStreamReader(process .getInputStream()); LineNumberReader input
问题描述 [防火墙已关闭]帮看下JMX本地Main方法连接取Broker报错 **帮我看下JMX本地Main方法连接取Broker报错 (No broker is found at any of the 1 configured urls)** JConsole通过jmxrmi连接 service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi本地正常 activemq.xml配置 <!-- Licensed to the Apache Software
问题描述 IT大神们帮看下什么情况 SELECT SUM(recivedPrincipal) AS 'leiji_invest_sum',COUNT(id) AS 'leiji_count',MAX(repayDate) AS 'lately_gathering_date',a.*,c.* FROM t_invest v LEFT JOIN (SELECT investor AS 'inv',SUM(recivedPrincipal+recivedPrincipal) AS 'yishou_su