创建文件夹 和递归删除文件夹

DirectoryCreate.java

package com.wits.dzwillpower; 

import java.io.File;

public class DirectoryCreate {
    public static void main(String[] args) {
        deleteFile(new File("E:\\ProgrammeMaterial\\Android\\AndroidProgram\\3372\\1\\1"));
    }

    public static void deleteFile(File file) {
        File[] temp = file.listFiles();
        for (int i = 0; i < temp.length; i++) {
            System.out.println(temp[i].getName());
            if (temp[i].isDirectory()) {
                if (temp[i].listFiles().length != 0)
                    deleteFile(temp[i]);
                deleteDir(temp[i]);
            } else {
                temp[i].delete();
            }
        }
    }

    private static void deleteDir(File file) {
        if (file.listFiles().length == 0)
            file.getAbsoluteFile().delete();
    }

}

RecursionCreateDir.java

package com.oppo.java;

import java.io.File;

public class RecursionCreateDir {

	public static void main(String[] args) {
		File rootFile;
		File files = new File("E:\\A\\B\\C");
		rootFile = files;
		if (!files.exists()) {
			if (files.mkdirs()) {
				System.out.println("创建多个目录成功");
			} else {
				System.out.println("创建多个目录失败.....");
			}
		}
		for (int i = 0; i < 100; i++) {
			File file = new File(rootFile, String.valueOf(i));
			rootFile = file;
			System.out.println("rootFile: " + rootFile);
			if (!rootFile.exists()) {
				if (rootFile.mkdir()) {
					System.out.println("创建子目录成功");
				} else {
					System.out.println("创建子目录失败");
				}
			}

		}

	}

}