java程序的递归算法，列出某个目录下的所有子目录和文件

java 代码

package guo;

import java.io.File;

public class FileDemo {

/**

* @param args

*/

public static void listFile(String path, int space) {

File file = new File(path);

if (file.isFile()) {

for (int i = 0; i < space; i++) {

System.out.print(" ");

}

System.out.println("--" + file.getName());

} else {

for (int i = 0; i < space; i++) {

System.out.print(" ");

}

space += space;

System.out.println("--" + file.getName());

File files[] = file.listFiles();

for (int i = 0; i < files.length; i++) {

listFile(files[i].getPath(), space);

}

}

}

public static void main(String[] args) {

FileDemo.listFile("C:", 1);

}

}