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JDK 1.1 Source Code Directory
JDK 1.1 source code directory contains Java source code for JDK 1.1 core classes:
"C:\fyicenter\jdk-1.1.8\src".
Here is the list of Java classes of the JDK 1.1 source code:
✍: FYIcenter
⏎ java/io/LineNumberInputStream.java
/* * @(#)LineNumberInputStream.java 1.14 01/12/10 * * Copyright 2002 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package java.io; /** * This class is an input stream filter that provides the added * functionality of keeping track of the current line number. * <p> * A line is a sequence of bytes ending with a carriage return * character (<code>'\r'</code>), a newline character * (<code>'\n'</code>), or a carriage return character followed * immediately by a linefeed character. In all three cases, the line * terminating character(s) are returned as a single newline character. * <p> * The line number begins at <code>0</code>, and is incremented by * <code>1</code> when a <code>read</code> returns a newline character. * * @author Arthur van Hoff * @version 1.14, 12/10/01 * @see java.io.LineNumberReader * @since JDK1.0 * @deprecated This class incorrectly assumes that bytes adequately represent * characters. As of JDK 1.1, the preferred way to operate on * character streams is via the new character-stream classes, which * include a class for counting line numbers. */ public class LineNumberInputStream extends FilterInputStream { int pushBack = -1; int lineNumber; int markLineNumber; /** * Constructs a newline number input stream that reads its input * from the specified input stream. * * @param in the underlying input stream. * @since JDK1.0 */ public LineNumberInputStream(InputStream in) { super(in); } /** * Reads the next byte of data from this input stream. The value * byte is returned as an <code>int</code> in the range * <code>0</code> to <code>255</code>. If no byte is available * because the end of the stream has been reached, the value * <code>-1</code> is returned. This method blocks until input data * is available, the end of the stream is detected, or an exception * is thrown. * <p> * The <code>read</code> method of * <code>LineNumberInputStream</code> calls the <code>read</code> * method of the underlying input stream. It checks for carriage * returns and newline characters in the input, and modifies the * current line number as appropriate. A carriage-return character or * a carriage return followed by a newline character are both * converted into a single newline character. * * @return the next byte of data, or <code>-1</code> if the end of this * stream is reached. * @exception IOException if an I/O error occurs. * @see java.io.FilterInputStream#in * @see java.io.LineNumberInputStream#getLineNumber() * @since JDK1.0 */ public int read() throws IOException { int c = pushBack; if (c != -1) { pushBack = -1; } else { c = in.read(); } switch (c) { case '\r': pushBack = in.read(); if (pushBack == '\n') { pushBack = -1; } case '\n': lineNumber++; return '\n'; } return c; } /** * Reads up to <code>len</code> bytes of data from this input stream * into an array of bytes. This method blocks until some input is available. * <p> * The <code>read</code> method of * <code>LineNumberInputStream</code> repeatedly calls the * <code>read</code> method of zero arguments to fill in the byte array. * * @param b the buffer into which the data is read. * @param off the start offset of the data. * @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 * this stream has been reached. * @exception IOException if an I/O error occurs. * @see java.io.LineNumberInputStream#read() * @since JDK1.0 */ public int read(byte b[], int off, int len) throws IOException { if (len <= 0) { return 0; } int c = read(); if (c == -1) { return -1; } b[off] = (byte)c; int i = 1; try { for (; i < len ; i++) { c = read(); if (c == -1) { break; } if (b != null) { b[off + i] = (byte)c; } } } catch (IOException ee) { } return i; } /** * Sets the line number to the specified argument. * * @param lineNumber the new line number. * @since JDK1.0 */ public void setLineNumber(int lineNumber) { this.lineNumber = lineNumber; } /** * Returns the current line number. * * @return the current line number. * @since JDK1.0 */ public int getLineNumber() { return lineNumber; } /** * Skips over and discards <code>n</code> bytes of data from the * input stream. The <code>skip</code> method may, for a variety of * reasons, end up skipping over some smaller number of bytes, * possibly <code>0</code>. The actual number of bytes skipped is returned. * <p> * The <code>skip</code> method of * <code>LineNumberInputStream</code> creates a byte array of length * <code>n</code> and then reads into it until <code>n</code> bytes * have been read or the end of the stream has been reached. * * @param n the number of bytes to be skipped. * @return the actual number of bytes skipped. * @exception IOException if an I/O error occurs. * @since JDK1.0 */ public long skip(long n) throws IOException { return read(new byte[(int)n]); } /** * Returns the number of bytes that can be read from this input * stream without blocking. * <p> * Note that if the underlying input stream is able to supply * <i>k</i> input characters without blocking, the * <code>LineNumberInputStream</code> can guarantee only to provide * <i>k</i>/2 characters without blocking, because the * <i>k</i> characters from the underlyhing input stream might * consist of <i>k</i>/2 pairs of <code>'\r'</code> and * <code>'\n'</code>, which are converted to just * <i>k</i>/2 <code>'\n'</code> characters. * * @return the number of bytes that can be read from this input stream * without blocking. * @exception IOException if an I/O error occurs. * @see java.io.FilterInputStream#in * @since JDK1.0 */ public int available() throws IOException { return (pushBack == -1) ? super.available() : super.available() + 1; } /** * Marks the current position in this input stream. A subsequent * call to the <code>reset</code> method repositions this stream at * the last marked position so that subsequent reads re-read the same bytes. * <p> * The <code>mark</code> method of * <code>LineNumberInputStream</code> remembers the current line * number in a private variable, and then calls the <code>mark</code> * method of the underlying input stream. * * @param readlimit the maximum limit of bytes that can be read before * the mark position becomes invalid. * @see java.io.FilterInputStream#in * @see java.io.LineNumberInputStream#reset() * @since JDK1.0 */ public void mark(int readlimit) { markLineNumber = lineNumber; in.mark(readlimit); } /** * Repositions this stream to the position at the time the * <code>mark</code> method was last called on this input stream. * <p> * The <code>reset</code> method of * <code>LineNumberInputStream</code> resets the line number to be * the line number at the time the <code>mark</code> method was * called, and then calls the <code>reset</code> method of the * underlying input stream. * <p> * Stream marks are intended to be used in * situations where you need to read ahead a little to see what's in * the stream. Often this is most easily done by invoking some * general parser. If the stream is of the type handled by the * parser, it just chugs along happily. If the stream is not of * that type, the parser should toss an exception when it fails, * which, if it happens within readlimit bytes, allows the outer * code to reset the stream and try another parser. * * @exception IOException if an I/O error occurs. * @see java.io.FilterInputStream#in * @see java.io.LineNumberInputStream#mark(int) * @since JDK1.0 */ public void reset() throws IOException { lineNumber = markLineNumber; in.reset(); } }
⏎ java/io/LineNumberInputStream.java
Or download all of them as a single archive file:
File name: jdk-1.1.8-src.zip File size: 1574187 bytes Release date: 2018-11-16 Download
⇒ Backup JDK 1.1 Installation Directory
2018-11-17, 175262👍, 0💬
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