Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2015 Yan Zhenjie
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import android.text.TextUtils;

import java.io.File;

import java.io.IOException;

public class Main {
    /**
     * Create a new file, if the file exists, delete and create again.
     *
     * @param filePath file path.
     * @return True: success, or false: failure.
     */
    public static boolean createNewFile(String filePath) {
        if (!TextUtils.isEmpty(filePath)) {
            File file = new File(filePath);
            return createNewFile(file);
        }
        return false;
    }

    /**
     * Create a new file, if the file exists, delete and create again.
     *
     * @param targetFile file.
     * @return True: success, or false: failure.
     */
    public static boolean createNewFile(File targetFile) {
        if (targetFile.exists())
            delFileOrFolder(targetFile);
        try {
            return targetFile.createNewFile();
        } catch (IOException e) {
            return false;
        }
    }

    /**
     * Delete file or folder.
     *
     * @param path path.
     * @return is succeed.
     * @see #delFileOrFolder(File)
     */
    public static boolean delFileOrFolder(String path) {
        return delFileOrFolder(new File(path));
    }

    /**
     * Delete file or folder.
     *
     * @param file file.
     * @return is succeed.
     * @see #delFileOrFolder(String)
     */
    @SuppressWarnings("ResultOfMethodCallIgnored")
    public static boolean delFileOrFolder(File file) {
        if (file == null || !file.exists()) {
            // do nothing
        } else if (file.isFile())
            file.delete();
        else if (file.isDirectory()) {
            File[] files = file.listFiles();
            if (files != null)
                for (File sonFile : files)
                    delFileOrFolder(sonFile);
            file.delete();
        }
        return true;
    }
}