chenjing928的博客

public class Test3 { //判断文件名后缀是.java吗？是的话true,不是的话false private static FileFilter fileFilter = new FileFilter() { @Override public boolean accept(File arg0) { // TODO Auto-generated method

public class Test5 { public static void main(String[] args) { // TODO Auto-generated method stub delete(new File("D:/a")); } //使用递归，判断如果是目录的话，就再执行此方法 public static void delete(File f) { //Sy

public class Test6 { public static void main(String[] args) { // TODO Auto-generated method stub try { File f = new File("D:/a.txt"); BufferedReader br = new BufferedReader(new FileReader(