content: /*
   * Copyright (c) 1996, 2005, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  package java.io;
  
  
  /**
   * Abstract class for reading filtered character streams.
   * The abstract class <code>FilterReader</code> itself
   * provides default methods that pass all requests to
   * the contained stream. Subclasses of <code>FilterReader</code>
   * should override some of these methods and may also provide
   * additional methods and fields.
   *
   * @author      Mark Reinhold
   * @since       JDK1.1
   */
  
  public abstract class FilterReader extends Reader {
  
      /**
       * The underlying character-input stream.
       */
      protected Reader in;
  
      /**
       * Creates a new filtered reader.
       *
       * @param in  a Reader object providing the underlying stream.
       * @throws NullPointerException if <code>in</code> is <code>null</code>
       */
      protected FilterReader(Reader in) {
          super(in);
          this.in = in;
      }
  
      /**
       * Reads a single character.
       *
       * @exception  IOException  If an I/O error occurs
       */
      public int read() throws IOException {
          return in.read();
      }
  
      /**
       * Reads characters into a portion of an array.
       *
       * @exception  IOException  If an I/O error occurs
       */
      public int read(char cbuf[], int off, int len) throws IOException {
          return in.read(cbuf, off, len);
      }
  
      /**
       * Skips characters.
       *
       * @exception  IOException  If an I/O error occurs
       */
      public long skip(long n) throws IOException {
          return in.skip(n);
      }
  
      /**
       * Tells whether this stream is ready to be read.
       *
       * @exception  IOException  If an I/O error occurs
       */
      public boolean ready() throws IOException {
          return in.ready();
      }
  
      /**
       * Tells whether this stream supports the mark() operation.
       */
      public boolean markSupported() {
          return in.markSupported();
      }
  
      /**
       * Marks the present position in the stream.
       *
       * @exception  IOException  If an I/O error occurs
       */
      public void mark(int readAheadLimit) throws IOException {
          in.mark(readAheadLimit);
      }
  
      /**
       * Resets the stream.
       *
       * @exception  IOException  If an I/O error occurs
       */
      public void reset() throws IOException {
          in.reset();
      }
  
      public void close() throws IOException {
          in.close();
      }
  
  }
  