要用到递归,现在没有现成的代码File f=new File("c:/");File[] ff=f.listFiles();for(int i=0;i<ff.length;i++)
{
if(ff[i].isDirectory()
{
//递归
}
else
{
System.out.println(ff[i].getName());
}}思路是这样,自己再加代码
{
if(ff[i].isDirectory()
{
//递归
}
else
{
System.out.println(ff[i].getName());
}}思路是这样,自己再加代码
int length;
String subpath;
File newfile = new File(path);
boolean rf = false;
if(newfile.isDirectory()){
String filelist[] = newfile.list();
length = filelist.length;
for(int i = 0; i < length; i++){
subpath = path + "\\" + filelist[i];
rf = rf|bianli(subpath);
}
}
else if(newfile.isFile()){
System.out.println("\t"+path);
}
return rf;
}
File f=new File("c:/");myfile(f);void myfile(File f){File[] ff=f.listFiles();for(int i=0;i<ff.length;i++)
{
if(ff[i].isDirectory()
{
System.out.println("directory:"+ff.getName());
myfile(ff[i]);
}
else
{
System.out.println("fiel name"+ff[i].getName());
}}}
}
catch(Exception e){}
File file = new File(path);
if(file.isDirectory()){
String[] files = file.list();
for(int i=0;i<files.length;i++){
listAllFile(files[i]);
}
}else{
System.out.println("Path:"files[i].getPath()+"\tName:"+files[i].getName());
}
}
import java.util.*;
public class f
{public static void main(String [] args)
{
try{
File f=new File("c:/abc");myfile(f);}
catch(Exception e){}
}static void myfile(File f){File[] ff=f.listFiles();for(int i=0;i<ff.length;i++)
{
if(ff[i].isDirectory())
{
System.out.println("directory:"+ff[i].getPath());
myfile(ff[i]);
}
else
{
System.out.println("fiel name:"+ff[i].getPath());
}}}}
import java.awt.*;public class DirList
{
public static void main(String args[])
{
try
{
File fileObj;
BufferedReader keyreader = new BufferedReader(new InputStreamReader(System.in));
while(true)
{
System.out.println("Please input the path:");
String path = keyreader.readLine();
fileObj = new File(path);
if (fileObj.exists())
{
if (fileObj.isDirectory())
{
System.out.println(fileObj+" is a Directory!");
String dir[] = fileObj.list();
System.out.println("In the Directory "+fileObj+" hava: ");
for (int i=0; i<dir.length; i++)
{
System.out.println(dir[i]);
}
System.out.println("\n");
}
else
{
System.out.println(fileObj+" is a file!");
System.out.println("The content of "+ fileObj+" is:");
RandomAccessFile rf = new RandomAccessFile(fileObj,"r");
rf.seek(0);
while (rf.getFilePointer() != rf.length())
{
System.out.println(rf.readLine());
}
}
}
else System.out.println("This file or directory is not exist!");
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
import java.io.*;
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.JScrollPane;
import java.util.Vector;
import java.util.ArrayList;
import java.util.Arrays;
import javax.swing.JOptionPane;
import javax.swing.UIManager;
import java.awt.Font;public class BrowseDir {
public File file = null;
static public String filePath = "f:/接收/mp3";
String tmpFilePath = null;
JFrame f = null;
DefaultMutableTreeNode root = null;
DefaultTreeModel treemodel = null;
BrowseDir() {
JTree tree = new JTree();
Font font = new Font(null,Font.BOLD|Font.ITALIC,12);
tree.setFont(font);
tree.setRowHeight(20);
root = new DefaultMutableTreeNode("文件目录");
listFile(filePath, root); //生成目录树
treemodel = new DefaultTreeModel(root);
tree.setModel(treemodel);
JScrollPane spn = new JScrollPane(tree);
System.out.println("OK");
f = new JFrame("File tree");
f.getContentPane().add(spn);
f.setSize(300, 400);
f.show(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
} public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch(Exception e) {
e.printStackTrace();
} BrowseDir bsd = new BrowseDir();
} public String[] listFile(String filepath, DefaultMutableTreeNode treenode) {
file = new File(filepath);
if (!file.exists()) {
System.out.println("file not exists!");
}
String[] filenameArray = null;
filenameArray = file.list();
filenameArray = sortDir2file(filenameArray, filepath); //文件排序
for (int i = 0; i < filenameArray.length; i++) {
// System.out.println(filenameArray[i]);
DefaultMutableTreeNode tmpnode = new DefaultMutableTreeNode(filenameArray[
i]);
treenode.add(tmpnode);
tmpFilePath = filepath + File.separator + filenameArray[i];
File tmpFile = new File(tmpFilePath);
if (tmpFile.isDirectory()) {
listFile(tmpFilePath, tmpnode);
}
//System.out.println(i);
}
return filenameArray;
} public String[] sortDir2file(String[] files, String filepath) {
Vector dir = new Vector();
Vector file = new Vector();
String[] dirs = null;
String[] tfiles = null;
String fullpath = null;
File tmpFile = null;
for (int i = 0; i < files.length; i++) {
fullpath = filepath + File.separator + files[i];
tmpFile = new File(fullpath);
if (tmpFile.isDirectory()) {
dir.addElement(files[i]);
}
else {
file.addElement(files[i]);
}
}
if (dir.size() > 0) {
dirs = new String[dir.size()];
dir.copyInto(dirs);
Arrays.sort(dirs);
}
if (file.size() > 0) {
tfiles = new String[file.size()];
file.copyInto(tfiles);
Arrays.sort(tfiles);
}
if (dirs != null && dirs.length > 0) {
for (int i = 0; i < dirs.length; i++) {
files[i] = dirs[i];
}
}
if (tfiles != null && tfiles.length > 0) {
for (int i = 0; i < tfiles.length; i++) {
if (dirs != null && dirs.length > 0) {
files[dirs.length + i] = tfiles[i];
}
else {
files[i] = tfiles[i];
}
}
} return files;
}}