Java tutorial
//package com.java2s; /* * ACDD Project * file ApkUtils.java is part of ACCD * The MIT License (MIT) Copyright (c) 2015 Bunny Blue,achellies. * * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * * */ import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.nio.ByteBuffer; import java.nio.channels.FileChannel; public class Main { static final int SYSTEM_ROOT_STATE_DISABLE = 0; public static void copyInputStreamToFile(InputStream inputStream, File file) throws IOException { FileOutputStream fileOutputStream = null; FileChannel fileChannel = null; try { fileOutputStream = new FileOutputStream(file); fileChannel = fileOutputStream.getChannel(); byte[] bArr = new byte[4096]; while (true) { int read = inputStream.read(bArr); if (read <= 0) { break; } fileChannel.write(ByteBuffer.wrap(bArr, SYSTEM_ROOT_STATE_DISABLE, read)); } } catch (Throwable throwable) { throwable.printStackTrace(); } finally { if (inputStream != null) { try { inputStream.close(); } catch (Exception e) { e.printStackTrace(); } } if (fileChannel != null) { try { fileChannel.close(); } catch (Exception e2) { e2.printStackTrace(); } } if (fileOutputStream != null) { try { fileOutputStream.close(); } catch (Exception e22) { e22.printStackTrace(); } } } } }