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/PrinterInfo.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 PrinterInfo is a printing attribute class, a text attribute, that
 * provides descriptive information about a printer. This could include things
 * like: <CODE>"This printer can be used for printing color transparencies for
 * HR presentations"</CODE>, or <CODE>"Out of courtesy for others, please
 * print only small (1-5 page) jobs at this printer"</CODE>, or even \
 * <CODE>"This printer is going away on July 1, 1997, please find a new
 * printer"</CODE>.
 * <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 PrinterInfo extends TextSyntax
        implements PrintServiceAttribute {

    private static final long serialVersionUID = 7765280618777599727L;

    /**
     * Constructs a new printer info attribute with the given information
     * string and locale.
     *
     * @param  info    Printer information string.
     * @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>info</CODE> is null.
     */
    public PrinterInfo(String info, Locale locale) {
        super (info, locale);
    }

    /**
     * Returns whether this printer info 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 PrinterInfo.
     * <LI>
     * This printer info attribute's underlying string and
     * <CODE>object</CODE>'s underlying string are equal.
     * <LI>
     * This printer info 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
     *          info attribute, false otherwise.
     */
    public boolean equals(Object object) {
        return (super.equals(object) && object instanceof PrinterInfo);
    }

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

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

}

⏎ javax/print/attribute/standard/PrinterInfo.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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