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/StringBufferInputStream.java

/*
 * @(#)StringBufferInputStream.java	1.18 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 allows an application to create an input stream in 
 * which the bytes read are supplied by the contents of a string. 
 * Applications can also read bytes from a byte array by using a 
 * <code>ByteArrayInputStream</code>. 
 * <p>
 * Only the low eight bits of each character in the string are used by
 * this class. 
 *
 * @author     Arthur van Hoff
 * @version    1.18, 12/10/01
 * @see        java.io.ByteArrayInputStream
 * @see        java.io.StringReader
 * @since      JDK1.0
 * @deprecated This class does not properly convert characters into bytes.  As
 *             of JDK&nbsp;1.1, the preferred way to create a stream from a
 *             string is via the <code>StringReader</code> class.
 */
public
class StringBufferInputStream extends InputStream {
    /**
     * The string from which bytes are read. 
     *
     * @since      JDK1.0
     */
    protected String buffer;

    /**
     * The index of the next character to read from the input stream buffer.
     *
     * @see        java.io.StringBufferInputStream#buffer
     * @since      JDK1.0
     */
    protected int pos;

    /**
     * The number of valid characters in the input stream buffer. 
     *
     * @see        java.io.StringBufferInputStream#buffer
     * @since      JDK1.0
     */
    protected int count;

    /**
     * Creates a string input stream to read data from the specified string.
     *
     * @param      s   the underlying input buffer.
     * @since      JDK1.0
     */
    public StringBufferInputStream(String s) {
	this.buffer = s;
	count = s.length();
    }

    /**
     * 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. 
     * <p>
     * The <code>read</code> method of 
     * <code>StringBufferInputStream</code> cannot block. It returns the 
     * low eight bits of the next character in this input stream's buffer. 
     *
     * @return     the next byte of data, or <code>-1</code> if the end of the
     *             stream is reached.
     * @since      JDK1.0
     */
    public synchronized int read() {
	return (pos < count) ? (buffer.charAt(pos++) & 0xFF) : -1;
    }

    /**
     * Reads up to <code>len</code> bytes of data from this input stream 
     * into an array of bytes. 
     * <p>
     * The <code>read</code> method of 
     * <code>StringBufferInputStream</code> cannot block. It copies the 
     * low eight bits from the characters in this input stream's buffer into 
     * the byte array argument. 
     *
     * @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
     *             the stream has been reached.
     * @since      JDK1.0
     */
    public synchronized int read(byte b[], int off, int len) {
	if (pos >= count) {
	    return -1;
	}
	if (pos + len > count) {
	    len = count - pos;
	}
	if (len <= 0) {
	    return 0;
	}
	String	s = buffer;
	int cnt = len;
	while (--cnt >= 0) {
	    b[off++] = (byte)s.charAt(pos++);
	}

	return len;
    }

    /**
     * Skips <code>n</code> bytes of input from this input stream. Fewer 
     * bytes might be skipped if the end of the input stream is reached. 
     *
     * @param      n   the number of bytes to be skipped.
     * @return     the actual number of bytes skipped.
     * @since      JDK1.0
     */
    public synchronized long skip(long n) {
	if (n < 0) {
	    return 0;
	}
	if (n > count - pos) {
	    n = count - pos;
	}
	pos += n;
	return n;
    }

    /**
     * Returns the number of bytes that can be read from the input 
     * stream without blocking. 
     *
     * @return     the value of <code>count&nbsp;-&nbsp;pos</code>, which is the
     *             number of bytes remaining to be read from the input buffer. 
     * @since      JDK1.0
     */
    public synchronized int available() {
	return count - pos;
    }

    /**
     * Resets the input stream to begin reading from the first character 
     * of this input stream's underlying buffer. 
     *
     * @since      JDK1.0
     */
    public synchronized void reset() {
	pos = 0;
    }
}

java/io/StringBufferInputStream.java

 

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File name: jdk-1.1.8-src.zip
File size: 1574187 bytes
Release date: 2018-11-16
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