    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 * Unless required by applicable law or agreed to in writing, software
    012 * distributed under the License is distributed on an "AS IS" BASIS,
    013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 * See the License for the specific language governing permissions and
    015 * limitations under the License.
    016 */
    017
    018package org.apache.commons.io.output;
    019
    020import java.io.PrintStream;
    021
    022/**
    023 * This PrintStream writes all data to the famous <b>/dev/null</b>.
    024 * <p>
    025 * This print stream has no destination (file/socket etc.) and all bytes written to it are ignored and lost.
    026 * </p>
    027 *
    028 * @since 2.7
    029 */
    030public class NullPrintStream extends PrintStream {
    031
    032    /**
    033     * The singleton instance.
    034     */
    035    public static final NullPrintStream NULL_PRINT_STREAM = new NullPrintStream();
    036
    037    /**
    038     * Constructs an instance.
    039     */
    040    public NullPrintStream() {
    041        // Relies on the default charset which is OK since we are not writing.
    042        super(NullOutputStream.NULL_OUTPUT_STREAM);
    043    }
    044
    045}