Java tutorial
//package com.java2s; /* * Copyright (C) 2011 The Android Open Source Project * * 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 java.io.File; import java.io.FileOutputStream; import java.io.IOException; public class Main { public static void createFile(File file, int numBytes) throws IOException { File parentFile = file.getParentFile(); if (parentFile != null) { parentFile.mkdirs(); } byte[] buffer = new byte[numBytes]; FileOutputStream output = new FileOutputStream(file); try { output.write(buffer); } finally { output.close(); } } }