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/util/Properties.java
/*
* @(#)Properties.java 1.32 01/12/10
*
* Copyright 2002 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package java.util;
import java.io.IOException;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Hashtable;
/**
* The <code>Properties</code> class represents a persistent set of
* properties. The <code>Properties</code> can be saved to a stream
* or loaded from a stream. Each key and its corresponding value in
* the property list is a string.
* <p>
* A property list can contain another property list as its
* "defaults"; this second property list is searched if
* the property key is not found in the original property list.
*
* @author Arthur van Hoff
* @version 1.32, 12/10/01
* @since JDK1.0
*/
public
class Properties extends Hashtable {
/**
* A property list that contains default values for any keys not
* found in this property list.
*
* @since JDK1.0
*/
protected Properties defaults;
/**
* Creates an empty property list with no default values.
*
* @since JDK1.0
*/
public Properties() {
this(null);
}
/**
* Creates an empty property list with the specified defaults.
*
* @param defaults the defaults.
* @since JDK1.0
*/
public Properties(Properties defaults) {
this.defaults = defaults;
}
/**
* Reads a property list from an input stream.
*
* @param in the input stream.
* @exception IOException if an error occurred when reading from the
* input stream.
* @since JDK1.0
*/
public synchronized void load(InputStream in) throws IOException {
/**
* Use char array to collect the key and val chars. Use an initial
* size of 80 chars and double the array during expansion.
*/
int buflen = 80;
char[] buf = new char[buflen];
int bufindx = 0;
in = Runtime.getRuntime().getLocalizedInputStream(in);
int ch = in.read();
while (true) {
switch (ch) {
case -1:
return;
case '#':
case '!':
do {
ch = in.read();
} while ((ch >= 0) && (ch != '\n') && (ch != '\r'));
continue;
case '\n':
case '\r':
case ' ':
case '\t':
ch = in.read();
continue;
}
/* Read the key into buf */
bufindx = 0;
while ((ch >= 0) && (ch != '=') && (ch != ':') &&
(ch != ' ') && (ch != '\t') && (ch != '\n') && (ch != '\r')) {
/* append ch to buf */
if (bufindx >= buflen) {
/* expand buf */
buflen *= 2;
char[] nbuf = new char[buflen];
System.arraycopy(buf, 0, nbuf, 0, buf.length);
buf = nbuf;
}
buf[bufindx++] = (char)ch;
ch = in.read();
}
while ((ch == ' ') || (ch == '\t')) {
ch = in.read();
}
if ((ch == '=') || (ch == ':')) {
ch = in.read();
}
while ((ch == ' ') || (ch == '\t')) {
ch = in.read();
}
/* create the key */
String key = new String(buf, 0, bufindx);
/* Read the value into buf, reuse buf */
bufindx = 0;
while ((ch >= 0) && (ch != '\n') && (ch != '\r')) {
int next = 0;
if (ch == '\\') {
switch (ch = in.read()) {
case '\r':
if (((ch = in.read()) == '\n') ||
(ch == ' ') || (ch == '\t')) {
// fall thru to '\n' case
} else continue;
case '\n':
while (((ch = in.read()) == ' ') || (ch == '\t'));
continue;
case 't': ch = '\t'; next = in.read(); break;
case 'n': ch = '\n'; next = in.read(); break;
case 'r': ch = '\r'; next = in.read(); break;
case 'u': {
while ((ch = in.read()) == 'u');
int d = 0;
loop:
for (int i = 0 ; i < 4 ; i++) {
next = in.read();
switch (ch) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
d = (d << 4) + ch - '0';
break;
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
d = (d << 4) + 10 + ch - 'a';
break;
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
d = (d << 4) + 10 + ch - 'A';
break;
default:
break loop;
}
ch = next;
}
ch = d;
break;
}
default: next = in.read(); break;
}
} else {
next = in.read();
}
/* append ch to buf */
if (bufindx >= buflen) {
/* expand buf */
buflen *= 2;
char[] nbuf = new char[buflen];
System.arraycopy(buf, 0, nbuf, 0, buf.length);
buf = nbuf;
}
buf[bufindx++] = (char)ch;
ch = next;
}
/* create the val */
String val = new String(buf, 0, bufindx);
put(key, val);
}
}
/**
* Stores this property list to the specified output stream. The
* string header is printed as a comment at the beginning of the stream.
*
* @param out an output stream.
* @param header a description of the property list.
* @since JDK1.0
*/
public synchronized void save(OutputStream out, String header) {
OutputStream localOut = Runtime.getRuntime().getLocalizedOutputStream(out);
PrintStream prnt = new PrintStream(localOut, false);
boolean localize = localOut != out;
if (header != null) {
prnt.write('#');
prnt.println(header);
}
prnt.write('#');
prnt.println(new Date());
for (Enumeration e = keys() ; e.hasMoreElements() ;) {
String key = (String)e.nextElement();
prnt.print(key);
prnt.write('=');
String val = (String)get(key);
int len = val.length();
boolean empty = false;
for (int i = 0 ; i < len ; i++) {
int ch = val.charAt(i);
switch (ch) {
case '\\': prnt.write('\\'); prnt.write('\\'); break;
case '\t': prnt.write('\\'); prnt.write('t'); break;
case '\n': prnt.write('\\'); prnt.write('n'); break;
case '\r': prnt.write('\\'); prnt.write('r'); break;
default:
if ((ch < ' ') || (ch >= 127) || (empty && (ch == ' '))) {
if ((ch > 255) && localize) {
prnt.write(ch);
} else {
prnt.write('\\');
prnt.write('u');
prnt.write(toHex((ch >> 12) & 0xF));
prnt.write(toHex((ch >> 8) & 0xF));
prnt.write(toHex((ch >> 4) & 0xF));
prnt.write(toHex((ch >> 0) & 0xF));
}
} else {
prnt.write(ch);
}
}
empty = false;
}
prnt.write('\n');
}
}
/**
* Searches for the property with the specified key in this property list.
* If the key is not found in this property list, the default property list,
* and its defaults, recursively, are then checked. The method returns
* <code>null</code> if the property is not found.
*
* @param key the property key.
* @return the value in this property list with the specified key value.
* @see java.util.Properties#defaults
* @since JDK1.0
*/
public String getProperty(String key) {
String val = (String)super.get(key);
return ((val == null) && (defaults != null)) ? defaults.getProperty(key) : val;
}
/**
* Searches for the property with the specified key in this property list.
* If the key is not found in this property list, the default property list,
* and its defaults, recursively, are then checked. The method returns the
* default value argument if the property is not found.
*
* @param key the hashtable key.
* @param defaultValue a default value.
*
* @return the value in this property list with the specified key value.
* @see java.util.Properties#defaults
* @since JDK1.0
*/
public String getProperty(String key, String defaultValue) {
String val = getProperty(key);
return (val == null) ? defaultValue : val;
}
/**
* Returns an enumeration of all the keys in this property list, including
* the keys in the default property list.
*
* @return an enumeration of all the keys in this property list, including
* the keys in the default property list.
* @see java.util.Enumeration
* @see java.util.Properties#defaults
* @since JDK1.0
*/
public Enumeration propertyNames() {
Hashtable h = new Hashtable();
enumerate(h);
return h.keys();
}
/**
* Prints this property list out to the specified output stream.
* This method is useful for debugging.
*
* @param out an output stream.
* @since JDK1.0
*/
public void list(PrintStream out) {
out.println("-- listing properties --");
Hashtable h = new Hashtable();
enumerate(h);
for (Enumeration e = h.keys() ; e.hasMoreElements() ;) {
String key = (String)e.nextElement();
String val = (String)h.get(key);
if (val.length() > 40) {
val = val.substring(0, 37) + "...";
}
out.println(key + "=" + val);
}
}
/**
* Prints this property list out to the specified output stream.
* This method is useful for debugging.
*
* @param out an output stream.
* @since JDK1.1
*/
/*
* Rather than use an anonymous inner class to share common code, this
* method is duplicated in order to ensure that a non-1.1 compiler can
* compile this file.
*/
public void list(PrintWriter out) {
out.println("-- listing properties --");
Hashtable h = new Hashtable();
enumerate(h);
for (Enumeration e = h.keys() ; e.hasMoreElements() ;) {
String key = (String)e.nextElement();
String val = (String)h.get(key);
if (val.length() > 40) {
val = val.substring(0, 37) + "...";
}
out.println(key + "=" + val);
}
}
/**
* Enumerates all key/value pairs in the specified hastable.
* @param h the hashtable
*/
private synchronized void enumerate(Hashtable h) {
if (defaults != null) {
defaults.enumerate(h);
}
for (Enumeration e = keys() ; e.hasMoreElements() ;) {
String key = (String)e.nextElement();
h.put(key, get(key));
}
}
/**
* Convert a nibble to a hex character
* @param nibble the nibble to convert.
*/
private static char toHex(int nibble) {
return hexDigit[(nibble & 0xF)];
}
/** A table of hex digits */
private static char[] hexDigit = {
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
};
}
⏎ java/util/Properties.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
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