fan504的专栏

java随机访问文件

将目录下文件名中有"_*"的文件名重命名为去掉“_*”后的名字public void renameFiles(String path)    {        File file = new File(path);        File[] files = file.listFiles();        for(File f : files)        

环境：Centos6.5 jdk1.7 tomcat81、下载tomcat，地址：http://tomcat.apache.org/download-80.cgi       2、检查系统是否安装了jdk     3、将下载的tomcat拷贝到指定的文件夹下并解压4、启动tomcat如上图则说明tomcat启动成功5、在浏览器中输入http://localh

import java.io.File;import java.util.concurrent.Executors;import java.util.concurrent.ScheduledExecutorService;import java.util.concurrent.TimeUnit;public class DeleteFile {public void e

public static void main(String[] args) {        String batName = "C:/Users/fl/Desktop/test.bat";        Runtime rt = Runtime.getRuntime();        Process ps = null;        try {           ps

ERROR 2017-05-15 16:56:31,355 org.springframework.web.servlet.DispatcherServlet.localhost-startStop-1 Context initialization failedorg.springframework.beans.factory.BeanCreationException: Error crea

/*** @category 利用反射机制通过属性名获取MongodbData对象的属性值* @param fieldName 获取属性值的属性名* @param data 获取对象* @return*/private String getValue(String fieldName, MongodbData data){String result = null;

package com.suanfa;public class RadixSort {private static String[] month = {"J", "F", "M", "A", "Y", "L", "U", "G", "S", "O", "N", "D"};private static String[] day = {"F", "S", "T", "O", "I"

private static int[] test(int[] a){int total = a.length;for(int i = 2; i >= 0; i--){int k = (int) Math.pow(2, i + 1) -1;int count = (int) Math.pow(2, i) - 1;for(int num = 0, j = k - 1 -