| /* |
| * Copyright (c) 1994, 2006, 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; |
| |
| |
| /** |
| * A data input stream lets an application read primitive Java data |
| * types from an underlying input stream in a machine-independent |
| * way. An application uses a data output stream to write data that |
| * can later be read by a data input stream. |
| * <p> |
| * DataInputStream is not necessarily safe for multithreaded access. |
| * Thread safety is optional and is the responsibility of users of |
| * methods in this class. |
| * |
| * @author Arthur van Hoff |
| * @see java.io.DataOutputStream |
| * @since JDK1.0 |
| */ |
| |
| @SuppressWarnings({"unchecked", "deprecation", "all"}) |
| public class DataInputStream extends java.io.FilterInputStream implements java.io.DataInput { |
| |
| /** |
| * Creates a DataInputStream that uses the specified |
| * underlying InputStream. |
| * |
| * @param in the specified input stream |
| */ |
| |
| public DataInputStream(java.io.InputStream in) { super(null); throw new RuntimeException("Stub!"); } |
| |
| /** |
| * Reads some number of bytes from the contained input stream and |
| * stores them into the buffer array <code>b</code>. The number of |
| * bytes actually read is returned as an integer. This method blocks |
| * until input data is available, end of file is detected, or an |
| * exception is thrown. |
| * |
| * <p>If <code>b</code> is null, a <code>NullPointerException</code> is |
| * thrown. If the length of <code>b</code> is zero, then no bytes are |
| * read and <code>0</code> is returned; otherwise, there is an attempt |
| * to read at least one byte. If no byte is available because the |
| * stream is at end of file, the value <code>-1</code> is returned; |
| * otherwise, at least one byte is read and stored into <code>b</code>. |
| * |
| * <p>The first byte read is stored into element <code>b[0]</code>, the |
| * next one into <code>b[1]</code>, and so on. The number of bytes read |
| * is, at most, equal to the length of <code>b</code>. Let <code>k</code> |
| * be the number of bytes actually read; these bytes will be stored in |
| * elements <code>b[0]</code> through <code>b[k-1]</code>, leaving |
| * elements <code>b[k]</code> through <code>b[b.length-1]</code> |
| * unaffected. |
| * |
| * <p>The <code>read(b)</code> method has the same effect as: |
| * <blockquote><pre> |
| * read(b, 0, b.length) |
| * </pre></blockquote> |
| * |
| * @param b the buffer into which the data is read. |
| * @return the total number of bytes read into the buffer, or |
| * <code>-1</code> if there is no more data because the end |
| * of the stream has been reached. |
| * @exception java.io.IOException if the first byte cannot be read for any reason |
| * other than end of file, the stream has been closed and the underlying |
| * input stream does not support reading after close, or another I/O |
| * error occurs. |
| * @see java.io.FilterInputStream#in |
| * @see java.io.InputStream#read(byte[], int, int) |
| */ |
| |
| public final int read(byte[] b) throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * Reads up to <code>len</code> bytes of data from the contained |
| * input stream into an array of bytes. An attempt is made to read |
| * as many as <code>len</code> bytes, but a smaller number may be read, |
| * possibly zero. The number of bytes actually read is returned as an |
| * integer. |
| * |
| * <p> This method blocks until input data is available, end of file is |
| * detected, or an exception is thrown. |
| * |
| * <p> If <code>len</code> is zero, then no bytes are read and |
| * <code>0</code> is returned; otherwise, there is an attempt to read at |
| * least one byte. If no byte is available because the stream is at end of |
| * file, the value <code>-1</code> is returned; otherwise, at least one |
| * byte is read and stored into <code>b</code>. |
| * |
| * <p> The first byte read is stored into element <code>b[off]</code>, the |
| * next one into <code>b[off+1]</code>, and so on. The number of bytes read |
| * is, at most, equal to <code>len</code>. Let <i>k</i> be the number of |
| * bytes actually read; these bytes will be stored in elements |
| * <code>b[off]</code> through <code>b[off+</code><i>k</i><code>-1]</code>, |
| * leaving elements <code>b[off+</code><i>k</i><code>]</code> through |
| * <code>b[off+len-1]</code> unaffected. |
| * |
| * <p> In every case, elements <code>b[0]</code> through |
| * <code>b[off]</code> and elements <code>b[off+len]</code> through |
| * <code>b[b.length-1]</code> are unaffected. |
| * |
| * @param b the buffer into which the data is read. |
| * @param off the start offset in the destination array <code>b</code> |
| * @param len the maximum number of bytes read. |
| * @return the total number of bytes read into the buffer, or |
| * <code>-1</code> if there is no more data because the end |
| * of the stream has been reached. |
| * @exception java.lang.NullPointerException If <code>b</code> is <code>null</code>. |
| * @exception java.lang.IndexOutOfBoundsException If <code>off</code> is negative, |
| * <code>len</code> is negative, or <code>len</code> is greater than |
| * <code>b.length - off</code> |
| * @exception java.io.IOException if the first byte cannot be read for any reason |
| * other than end of file, the stream has been closed and the underlying |
| * input stream does not support reading after close, or another I/O |
| * error occurs. |
| * @see java.io.FilterInputStream#in |
| * @see java.io.InputStream#read(byte[], int, int) |
| */ |
| |
| public final int read(byte[] b, int off, int len) throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readFully</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @param b the buffer into which the data is read. |
| * @exception java.io.EOFException if this input stream reaches the end before |
| * reading all the bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| public final void readFully(byte[] b) throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readFully</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @param b the buffer into which the data is read. |
| * @param off the start offset of the data. |
| * @param len the number of bytes to read. |
| * @exception java.io.EOFException if this input stream reaches the end before |
| * reading all the bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| public final void readFully(byte[] b, int off, int len) throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>skipBytes</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes for this operation are read from the contained |
| * input stream. |
| * |
| * @param n the number of bytes to be skipped. |
| * @return the actual number of bytes skipped. |
| * @exception java.io.IOException if the contained input stream does not support |
| * seek, or the stream has been closed and |
| * the contained input stream does not support |
| * reading after close, or another I/O error occurs. |
| */ |
| |
| public final int skipBytes(int n) throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readBoolean</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes for this operation are read from the contained |
| * input stream. |
| * |
| * @return the <code>boolean</code> value read. |
| * @exception java.io.EOFException if this input stream has reached the end. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| public final boolean readBoolean() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readByte</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @return the next byte of this input stream as a signed 8-bit |
| * <code>byte</code>. |
| * @exception java.io.EOFException if this input stream has reached the end. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| public final byte readByte() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readUnsignedByte</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @return the next byte of this input stream, interpreted as an |
| * unsigned 8-bit number. |
| * @exception java.io.EOFException if this input stream has reached the end. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| public final int readUnsignedByte() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readShort</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @return the next two bytes of this input stream, interpreted as a |
| * signed 16-bit number. |
| * @exception java.io.EOFException if this input stream reaches the end before |
| * reading two bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| public final short readShort() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readUnsignedShort</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @return the next two bytes of this input stream, interpreted as an |
| * unsigned 16-bit integer. |
| * @exception java.io.EOFException if this input stream reaches the end before |
| * reading two bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| public final int readUnsignedShort() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readChar</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @return the next two bytes of this input stream, interpreted as a |
| * <code>char</code>. |
| * @exception java.io.EOFException if this input stream reaches the end before |
| * reading two bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| public final char readChar() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readInt</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @return the next four bytes of this input stream, interpreted as an |
| * <code>int</code>. |
| * @exception java.io.EOFException if this input stream reaches the end before |
| * reading four bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| public final int readInt() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readLong</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @return the next eight bytes of this input stream, interpreted as a |
| * <code>long</code>. |
| * @exception java.io.EOFException if this input stream reaches the end before |
| * reading eight bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| public final long readLong() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readFloat</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @return the next four bytes of this input stream, interpreted as a |
| * <code>float</code>. |
| * @exception java.io.EOFException if this input stream reaches the end before |
| * reading four bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.DataInputStream#readInt() |
| * @see java.lang.Float#intBitsToFloat(int) |
| */ |
| |
| public final float readFloat() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readDouble</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @return the next eight bytes of this input stream, interpreted as a |
| * <code>double</code>. |
| * @exception java.io.EOFException if this input stream reaches the end before |
| * reading eight bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @see java.io.DataInputStream#readLong() |
| * @see java.lang.Double#longBitsToDouble(long) |
| */ |
| |
| public final double readDouble() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readLine</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @deprecated This method does not properly convert bytes to characters. |
| * As of JDK 1.1, the preferred way to read lines of text is via the |
| * <code>BufferedReader.readLine()</code> method. Programs that use the |
| * <code>DataInputStream</code> class to read lines can be converted to use |
| * the <code>BufferedReader</code> class by replacing code of the form: |
| * <blockquote><pre> |
| * DataInputStream d = new DataInputStream(in); |
| * </pre></blockquote> |
| * with: |
| * <blockquote><pre> |
| * BufferedReader d |
| * = new BufferedReader(new InputStreamReader(in)); |
| * </pre></blockquote> |
| * |
| * @return the next line of text from this input stream. |
| * @exception java.io.IOException if an I/O error occurs. |
| * @see java.io.BufferedReader#readLine() |
| * @see java.io.FilterInputStream#in |
| */ |
| |
| @Deprecated |
| public final java.lang.String readLine() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * See the general contract of the <code>readUTF</code> |
| * method of <code>DataInput</code>. |
| * <p> |
| * Bytes |
| * for this operation are read from the contained |
| * input stream. |
| * |
| * @return a Unicode string. |
| * @exception java.io.EOFException if this input stream reaches the end before |
| * reading all the bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @exception java.io.UTFDataFormatException if the bytes do not represent a valid |
| * modified UTF-8 encoding of a string. |
| * @see java.io.DataInputStream#readUTF(java.io.DataInput) |
| */ |
| |
| public final java.lang.String readUTF() throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| |
| /** |
| * Reads from the |
| * stream <code>in</code> a representation |
| * of a Unicode character string encoded in |
| * <a href="DataInput.html#modified-utf-8">modified UTF-8</a> format; |
| * this string of characters is then returned as a <code>String</code>. |
| * The details of the modified UTF-8 representation |
| * are exactly the same as for the <code>readUTF</code> |
| * method of <code>DataInput</code>. |
| * |
| * @param in a data input stream. |
| * @return a Unicode string. |
| * @exception java.io.EOFException if the input stream reaches the end |
| * before all the bytes. |
| * @exception java.io.IOException the stream has been closed and the contained |
| * input stream does not support reading after close, or |
| * another I/O error occurs. |
| * @exception java.io.UTFDataFormatException if the bytes do not represent a |
| * valid modified UTF-8 encoding of a Unicode string. |
| * @see java.io.DataInputStream#readUnsignedShort() |
| */ |
| |
| public static final java.lang.String readUTF(java.io.DataInput in) throws java.io.IOException { throw new RuntimeException("Stub!"); } |
| } |
| |
