Here you can find the source of getOutputStream(String fileName)
public static BufferedOutputStream getOutputStream(String fileName) throws IOException
//package com.java2s; /**//from www . j av a 2 s. c o m * Copyright 2017 Goldman Sachs. * 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.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; public class Main { public static BufferedOutputStream getOutputStream(String fileName) throws IOException { return getOutputStream(new File(fileName)); } public static BufferedOutputStream getOutputStream(File file) throws IOException { if (file.exists()) { file.delete(); } if (file.getParentFile() != null) { file.getParentFile().mkdirs(); } return new BufferedOutputStream(new FileOutputStream(file)); } }