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/JobKOctetsSupported.java

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

import javax.print.attribute.Attribute;
import javax.print.attribute.SetOfIntegerSyntax;
import javax.print.attribute.SupportedValuesAttribute;

/**
 * Class JobKOctetsSupported is a printing attribute class, a set of integers,
 * that gives the supported values for a {@link JobKOctets JobKOctets}
 * attribute. It is restricted to a single contiguous range of integers;
 * multiple non-overlapping ranges are not allowed. This gives the lower and
 * upper bounds of the total sizes of print jobs in units of K octets (1024
 * octets) that the printer will accept.
 * <P>
 * <B>IPP Compatibility:</B> The JobKOctetsSupported attribute's canonical array
 * form gives the lower and upper bound for the range of values to be included
 * in an IPP "job-k-octets-supported" attribute. See class {@link
 * javax.print.attribute.SetOfIntegerSyntax SetOfIntegerSyntax} for an
 * explanation of canonical array form. The category name returned by
 * <CODE>getName()</CODE> gives the IPP attribute name.
 * <P>
 *
 * @author  Alan Kaminsky
 */
public final class JobKOctetsSupported extends SetOfIntegerSyntax
    implements SupportedValuesAttribute {

    private static final long serialVersionUID = -2867871140549897443L;

    /**
     * Construct a new job K octets supported attribute containing a single
     * range of integers. That is, only those values of JobKOctets in the one
     * range are supported.
     *
     * @param  lowerBound  Lower bound of the range.
     * @param  upperBound  Upper bound of the range.
     *
     * @exception  IllegalArgumentException
     *  (Unchecked exception) Thrown if a null range is specified or if a
     *  non-null range is specified with <CODE>lowerBound</CODE> less than
     *   0.
     */
    public JobKOctetsSupported(int lowerBound, int upperBound) {
        super (lowerBound, upperBound);
        if (lowerBound > upperBound) {
            throw new IllegalArgumentException("Null range specified");
        } else if (lowerBound < 0) {
            throw new IllegalArgumentException
                ("Job K octets value < 0 specified");
        }
    }

    /**
     * Returns whether this job K octets supported 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 JobKOctetsSupported.
     * <LI>
     * This job K octets supported attribute's members and
     * <CODE>object</CODE>'s members are the same.
     * </OL>
     *
     * @param  object  Object to compare to.
     *
     * @return  True if <CODE>object</CODE> is equivalent to this job K
     *          octets supported attribute, false otherwise.
     */
    public boolean equals(Object object) {
        return (super.equals (object) &&
                object instanceof JobKOctetsSupported);
    }

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

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

}

⏎ javax/print/attribute/standard/JobKOctetsSupported.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

⇑ Download and Use JDK 8

⇑⇑ FAQ for JDK (Java Development Kit)