happymff的博客

public int compare(Object o1, Object o2) { File file1 = (File)o1; File file2 = (File)o2; long diff = file1.lastModified() - file2.lastModified(); if (diff > 0)

package xmlExtractor;import org.xml.sax.Attributes;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;import java.util.ArrayList;import java.util.List;public class SAXH

package test;/** * Created by mff on 2017/10/26. * 日常操作中常见的排序方法有：冒泡排序、快速排序、选择排序、插入排序、希尔排序，甚至还有基数排序、鸡尾酒排序、桶排序、鸽巢排序、归并排序等。 */public class SortMethods { /** * 冒泡法排序<br/>冒泡排序是一种简单的排序算法。它重复地走访过

/* * 已知a.txt文件中有这样的一个字符串：“hcexfgijkamdnoqrzstuvwybpl” 请编写程序读取数据内容，把数据排序后写入b.txt中。 分析： A：把s.txt这个文件给做出来 B：读取该文件的内容，存储到一个字符串中 c:把字符串转换成字符数组 D:对字符进行排序

public void IOCopy(String path, String path1) { File file = new File(path); File file1 = new File(path1); if (!file.exists()) { System.out.println(file.getName() + "文件不存在"); }

public class JsonExtracter { public static void main(String[] args) { String s = "{\"name\":\"a\",\"family\":[\"张三\",\"李四\"]}"; JSONObject jsonObject = JSON.parseObject(s);

package UserManager;/** * Created by mff on 2017/10/31. */import java.util.Date;public class User { private String userId; //用户ID private String userName; //用户名称 private String p

package UserManager; /** * Created by mff on 2017/10/31. */import java.sql.*;import java.util.ArrayList;import java.util.Date;import java.util.List;/** * 采用单例管理用户 * * @author mff */publi

public void paint(Graphics g){ int width = 160; int height = 40; g.setColor(Color.LIGHT_GRAY); g.fillRect(0,0,width,height); g.setColor(Color.BLACK); g.drawRect(0,0,width-1,he

String s = "{\"error\":0,\"status\":\"success\",\"results\":[{\"currentCity\":\"青岛\",\"index\":[{\"title\":\"穿衣\",\"zs\":\"较冷\",\"tipt\":\"穿衣指数\",\"des\":\"建议着厚外套加毛衣等服装。年老体弱者宜着大衣、呢外套加羊毛衫。\"},{\"title\"

public static void main(String[] args) { File dir = new File("/Users/mff/Documents/books"); File[] files = dir.listFiles(); System.out.println("before sort: "); for (int

public int compare(Object o1, Object o2) { File file1 = (File)o1; File file2 = (File)o2; long diff = file1.length() - file2.length(); if (diff > 0) return 1;

插件安装通过Jetbrains官方仓库安装打开 Settings >> Plugins >> Browse repositories...在搜索框输入alibaba即可看到Alibaba Java Code Guidelines插件，点击Install进行安装，然后重启IDE生效 注意：因为插件zip包托管在Jetbrains官方CDN上，所以是从国外的服务器进