JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime environment included in JDK 8. JRE 8 rt.jar libraries are divided into 6 packages:

com.* - Internal Oracle and Sun Microsystems libraries
java.* - Standard Java API libraries.
javax.* - Extended Java API libraries.
jdk.* -  JDK supporting libraries.
org.* - Third party libraries.
sun.* - Old libraries developed by Sun Microsystems.

JAR File Information:

Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib
      63,596,151 rt.jar

Here is the list of Java classes of the javax.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.

⏎ javax/print/attribute/standard/PrinterName.java

/*
 * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */
package javax.print.attribute.standard;

import java.util.Locale;

import javax.print.attribute.Attribute;
import javax.print.attribute.TextSyntax;
import javax.print.attribute.PrintServiceAttribute;

/**
 * Class PrinterName is a printing attribute class, a text attribute, that
 * specifies the name of a printer. It is a name that is more end-user friendly
 * than a URI. An administrator determines a printer's name and sets this
 * attribute to that name. This name may be the last part of the printer's URI
 * or it may be unrelated. In non-US-English locales, a name may contain
 * characters that are not allowed in a URI.
 * <P>
 * <B>IPP Compatibility:</B> The string value gives the IPP name value. The
 * locale gives the IPP natural language. The category name returned by
 * <CODE>getName()</CODE> gives the IPP attribute name.
 * <P>
 *
 * @author  Alan Kaminsky
 */
public final class PrinterName extends TextSyntax
        implements PrintServiceAttribute {

    private static final long serialVersionUID = 299740639137803127L;

    /**
     * Constructs a new printer name attribute with the given name and locale.
     *
     * @param  printerName  Printer name.
     * @param  locale       Natural language of the text string. null
     * is interpreted to mean the default locale as returned
     * by <code>Locale.getDefault()</code>
     *
     * @exception  NullPointerException
     *     (unchecked exception) Thrown if <CODE>printerName</CODE> is null.
     */
    public PrinterName(String printerName, Locale locale) {
        super (printerName, locale);
    }

    /**
     * Returns whether this printer name attribute is equivalent to the passed
     * in object. To be equivalent, all of the following conditions must be
     * true:
     * <OL TYPE=1>
     * <LI>
     * <CODE>object</CODE> is not null.
     * <LI>
     * <CODE>object</CODE> is an instance of class PrinterName.
     * <LI>
     * This printer name attribute's underlying string and
     * <CODE>object</CODE>'s underlying string are equal.
     * <LI>
     * This printer name attribute's locale and <CODE>object</CODE>'s locale
     * are equal.
     * </OL>
     *
     * @param  object  Object to compare to.
     *
     * @return  True if <CODE>object</CODE> is equivalent to this printer
     *          name attribute, false otherwise.
     */
    public boolean equals(Object object) {
        return (super.equals(object) && object instanceof PrinterName);
    }

    /**
     * Get the printing attribute class which is to be used as the "category"
     * for this printing attribute value.
     * <P>
     * For class PrinterName, the category is
     * class PrinterName itself.
     *
     * @return  Printing attribute class (category), an instance of class
     *          {@link java.lang.Class java.lang.Class}.
     */
    public final Class<? extends Attribute> getCategory() {
        return PrinterName.class;
    }

    /**
     * Get the name of the category of which this attribute value is an
     * instance.
     * <P>
     * For class PrinterName, the category
     * name is <CODE>"printer-name"</CODE>.
     *
     * @return  Attribute category name.
     */
    public final String getName() {
        return "printer-name";
    }

}

⏎ javax/print/attribute/standard/PrinterName.java

Or download all of them as a single archive file:

File name: jre-rt-javax-1.8.0_191-src.zip
File size: 5381005 bytes
Release date: 2018-10-28
Download 

⇒ JRE 8 rt.jar - org.* Package Source Code

⇐ JRE 8 rt.jar - java.* Package Source Code

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