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JRE 8 rt.jar - javax.* Package Source Code
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.
✍: FYIcenter
⏎ javax/print/attribute/ResolutionSyntax.java
/* * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package javax.print.attribute; import java.io.Serializable; /** * Class ResolutionSyntax is an abstract base class providing the common * implementation of all attributes denoting a printer resolution. * <P> * A resolution attribute's value consists of two items, the cross feed * direction resolution and the feed direction resolution. A resolution * attribute may be constructed by supplying the two values and indicating the * units in which the values are measured. Methods are provided to return a * resolution attribute's values, indicating the units in which the values are * to be returned. The two most common resolution units are dots per inch (dpi) * and dots per centimeter (dpcm), and exported constants {@link #DPI * DPI} and {@link #DPCM DPCM} are provided for * indicating those units. * <P> * Once constructed, a resolution attribute's value is immutable. * <P> * <B>Design</B> * <P> * A resolution attribute's cross feed direction resolution and feed direction * resolution values are stored internally using units of dots per 100 inches * (dphi). Storing the values in dphi rather than, say, metric units allows * precise integer arithmetic conversions between dpi and dphi and between dpcm * and dphi: 1 dpi = 100 dphi, 1 dpcm = 254 dphi. Thus, the values can be stored * into and retrieved back from a resolution attribute in either units with no * loss of precision. This would not be guaranteed if a floating point * representation were used. However, roundoff error will in general occur if a * resolution attribute's values are created in one units and retrieved in * different units; for example, 600 dpi will be rounded to 236 dpcm, whereas * the true value (to five figures) is 236.22 dpcm. * <P> * Storing the values internally in common units of dphi lets two resolution * attributes be compared without regard to the units in which they were * created; for example, 300 dpcm will compare equal to 762 dpi, as they both * are stored as 76200 dphi. In particular, a lookup service can * match resolution attributes based on equality of their serialized * representations regardless of the units in which they were created. Again, * using integers for internal storage allows precise equality comparisons to be * done, which would not be guaranteed if a floating point representation were * used. * <P> * The exported constant {@link #DPI DPI} is actually the * conversion factor by which to multiply a value in dpi to get the value in * dphi. Likewise, the exported constant {@link #DPCM DPCM} is the * conversion factor by which to multiply a value in dpcm to get the value in * dphi. A client can specify a resolution value in units other than dpi or dpcm * by supplying its own conversion factor. However, since the internal units of * dphi was chosen with supporting only the external units of dpi and dpcm in * mind, there is no guarantee that the conversion factor for the client's units * will be an exact integer. If the conversion factor isn't an exact integer, * resolution values in the client's units won't be stored precisely. * <P> * * @author David Mendenhall * @author Alan Kaminsky */ public abstract class ResolutionSyntax implements Serializable, Cloneable { private static final long serialVersionUID = 2706743076526672017L; /** * Cross feed direction resolution in units of dots per 100 inches (dphi). * @serial */ private int crossFeedResolution; /** * Feed direction resolution in units of dots per 100 inches (dphi). * @serial */ private int feedResolution; /** * Value to indicate units of dots per inch (dpi). It is actually the * conversion factor by which to multiply dpi to yield dphi (100). */ public static final int DPI = 100; /** * Value to indicate units of dots per centimeter (dpcm). It is actually * the conversion factor by which to multiply dpcm to yield dphi (254). */ public static final int DPCM = 254; /** * Construct a new resolution attribute from the given items. * * @param crossFeedResolution * Cross feed direction resolution. * @param feedResolution * Feed direction resolution. * @param units * Unit conversion factor, e.g. {@link #DPI DPI} or * {@link #DPCM DPCM}. * * @exception IllegalArgumentException * (unchecked exception) Thrown if {@code crossFeedResolution < 1} * or {@code feedResolution < 1} or {@code units < 1}. */ public ResolutionSyntax(int crossFeedResolution, int feedResolution, int units) { if (crossFeedResolution < 1) { throw new IllegalArgumentException("crossFeedResolution is < 1"); } if (feedResolution < 1) { throw new IllegalArgumentException("feedResolution is < 1"); } if (units < 1) { throw new IllegalArgumentException("units is < 1"); } this.crossFeedResolution = crossFeedResolution * units; this.feedResolution = feedResolution * units; } /** * Convert a value from dphi to some other units. The result is rounded to * the nearest integer. * * @param dphi * Value (dphi) to convert. * @param units * Unit conversion factor, e.g. {@link #DPI <CODE>DPI</CODE>} or * {@link #DPCM <CODE>DPCM</CODE>}. * * @return The value of <CODE>dphi</CODE> converted to the desired units. * * @exception IllegalArgumentException * (unchecked exception) Thrown if <CODE>units</CODE> < 1. */ private static int convertFromDphi(int dphi, int units) { if (units < 1) { throw new IllegalArgumentException(": units is < 1"); } int round = units / 2; return (dphi + round) / units; } /** * Get this resolution attribute's resolution values in the given units. * The values are rounded to the nearest integer. * * @param units * Unit conversion factor, e.g. {@link #DPI DPI} or * {@link #DPCM DPCM}. * * @return A two-element array with the cross feed direction resolution * at index 0 and the feed direction resolution at index 1. * * @exception IllegalArgumentException * (unchecked exception) Thrown if {@code units < 1}. */ public int[] getResolution(int units) { return new int[] { getCrossFeedResolution(units), getFeedResolution(units) }; } /** * Returns this resolution attribute's cross feed direction resolution in * the given units. The value is rounded to the nearest integer. * * @param units * Unit conversion factor, e.g. {@link #DPI DPI} or * {@link #DPCM DPCM}. * * @return Cross feed direction resolution. * * @exception IllegalArgumentException * (unchecked exception) Thrown if {@code units < 1}. */ public int getCrossFeedResolution(int units) { return convertFromDphi (crossFeedResolution, units); } /** * Returns this resolution attribute's feed direction resolution in the * given units. The value is rounded to the nearest integer. * * @param units * Unit conversion factor, e.g. {@link #DPI DPI} or {@link * #DPCM DPCM}. * * @return Feed direction resolution. * * @exception IllegalArgumentException * (unchecked exception) Thrown if {@code units < 1}. */ public int getFeedResolution(int units) { return convertFromDphi (feedResolution, units); } /** * Returns a string version of this resolution attribute in the given units. * The string takes the form <CODE>"<I>C</I>x<I>F</I> <I>U</I>"</CODE>, * where <I>C</I> is the cross feed direction resolution, <I>F</I> is the * feed direction resolution, and <I>U</I> is the units name. The values are * rounded to the nearest integer. * * @param units * Unit conversion factor, e.g. {@link #DPI CODE>DPI} or {@link * #DPCM DPCM}. * @param unitsName * Units name string, e.g. <CODE>"dpi"</CODE> or <CODE>"dpcm"</CODE>. If * null, no units name is appended to the result. * * @return String version of this resolution attribute. * * @exception IllegalArgumentException * (unchecked exception) Thrown if {@code units < 1}. */ public String toString(int units, String unitsName) { StringBuffer result = new StringBuffer(); result.append(getCrossFeedResolution (units)); result.append('x'); result.append(getFeedResolution (units)); if (unitsName != null) { result.append (' '); result.append (unitsName); } return result.toString(); } /** * Determine whether this resolution attribute's value is less than or * equal to the given resolution attribute's value. This is true if all * of the following conditions are true: * <UL> * <LI> * This attribute's cross feed direction resolution is less than or equal to * the <CODE>other</CODE> attribute's cross feed direction resolution. * <LI> * This attribute's feed direction resolution is less than or equal to the * <CODE>other</CODE> attribute's feed direction resolution. * </UL> * * @param other Resolution attribute to compare with. * * @return True if this resolution attribute is less than or equal to the * <CODE>other</CODE> resolution attribute, false otherwise. * * @exception NullPointerException * (unchecked exception) Thrown if <CODE>other</CODE> is null. */ public boolean lessThanOrEquals(ResolutionSyntax other) { return (this.crossFeedResolution <= other.crossFeedResolution && this.feedResolution <= other.feedResolution); } /** * Returns whether this resolution 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 ResolutionSyntax. * <LI> * This attribute's cross feed direction resolution is equal to * <CODE>object</CODE>'s cross feed direction resolution. * <LI> * This attribute's feed direction resolution is equal to * <CODE>object</CODE>'s feed direction resolution. * </OL> * * @param object Object to compare to. * * @return True if <CODE>object</CODE> is equivalent to this resolution * attribute, false otherwise. */ public boolean equals(Object object) { return(object != null && object instanceof ResolutionSyntax && this.crossFeedResolution == ((ResolutionSyntax) object).crossFeedResolution && this.feedResolution == ((ResolutionSyntax) object).feedResolution); } /** * Returns a hash code value for this resolution attribute. */ public int hashCode() { return(((crossFeedResolution & 0x0000FFFF)) | ((feedResolution & 0x0000FFFF) << 16)); } /** * Returns a string version of this resolution attribute. The string takes * the form <CODE>"<I>C</I>x<I>F</I> dphi"</CODE>, where <I>C</I> is the * cross feed direction resolution and <I>F</I> is the feed direction * resolution. The values are reported in the internal units of dphi. */ public String toString() { StringBuffer result = new StringBuffer(); result.append(crossFeedResolution); result.append('x'); result.append(feedResolution); result.append(" dphi"); return result.toString(); } /** * Returns this resolution attribute's cross feed direction resolution in * units of dphi. (For use in a subclass.) * * @return Cross feed direction resolution. */ protected int getCrossFeedResolutionDphi() { return crossFeedResolution; } /** * Returns this resolution attribute's feed direction resolution in units * of dphi. (For use in a subclass.) * * @return Feed direction resolution. */ protected int getFeedResolutionDphi() { return feedResolution; } }
⏎ javax/print/attribute/ResolutionSyntax.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
2024-03-15, 212587👍, 6💬
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