Java实现文件检索系统的示例代码

package Demo; import java.io.File; import java.io.FilenameFilter; import java.util.Scanner; import java.lang.Exception; import java.io.IOException; public class Demo8_1 { public static void main(String[] args) { while(true) { System.out.println("1、按关键字检索文件"); System.out.println("2、按后缀名找出文件"); System.out.println("3、退出"); System.out.println("请选择你的操作"); Scanner sr = new Scanner(System.in); int choose = sr.nextInt(); if(choose==1) { searchByKey(); }else if(choose==2) { searchBySuffix(); }else if(choose==3) { exit(); } } } //退出 public static void exit() { System.out.println("你已经退出系统，感谢使用！"); System.exit(0); } //按照关键字查找 public static void searchByKey() { Scanner sr = new Scanner(System.in); System.out.println("请输入要检索文件的位置："); String dirPath = sr.next(); File dir = new File(dirPath); File[]files = dir.listFiles(); String[] fileNames = new String[files.length]; System.out.println("请输入检索文件关键字"); String mainName = sr.next(); //(dir.getName()+"/"+mainName); Filter filter = new Filter(); for(int i=0;i