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JRE 8 rt.jar - java.* 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 java.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.
✍: FYIcenter
⏎ java/awt/CheckboxMenuItem.java
/* * Copyright (c) 1995, 2013, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.awt; import java.awt.peer.CheckboxMenuItemPeer; import java.awt.event.*; import java.util.EventListener; import java.io.ObjectOutputStream; import java.io.ObjectInputStream; import java.io.IOException; import javax.accessibility.*; import sun.awt.AWTAccessor; /** * This class represents a check box that can be included in a menu. * Selecting the check box in the menu changes its state from * "on" to "off" or from "off" to "on." * <p> * The following picture depicts a menu which contains an instance * of <code>CheckBoxMenuItem</code>: * <p> * <img src="doc-files/MenuBar-1.gif" * alt="Menu labeled Examples, containing items Basic, Simple, Check, and More Examples. The Check item is a CheckBoxMenuItem instance, in the off state." * style="float:center; margin: 7px 10px;"> * <p> * The item labeled <code>Check</code> shows a check box menu item * in its "off" state. * <p> * When a check box menu item is selected, AWT sends an item event to * the item. Since the event is an instance of <code>ItemEvent</code>, * the <code>processEvent</code> method examines the event and passes * it along to <code>processItemEvent</code>. The latter method redirects * the event to any <code>ItemListener</code> objects that have * registered an interest in item events generated by this menu item. * * @author Sami Shaio * @see java.awt.event.ItemEvent * @see java.awt.event.ItemListener * @since JDK1.0 */ public class CheckboxMenuItem extends MenuItem implements ItemSelectable, Accessible { static { /* ensure that the necessary native libraries are loaded */ Toolkit.loadLibraries(); if (!GraphicsEnvironment.isHeadless()) { initIDs(); } AWTAccessor.setCheckboxMenuItemAccessor( new AWTAccessor.CheckboxMenuItemAccessor() { public boolean getState(CheckboxMenuItem cmi) { return cmi.state; } }); } /** * The state of a checkbox menu item * @serial * @see #getState() * @see #setState(boolean) */ boolean state = false; transient ItemListener itemListener; private static final String base = "chkmenuitem"; private static int nameCounter = 0; /* * JDK 1.1 serialVersionUID */ private static final long serialVersionUID = 6190621106981774043L; /** * Create a check box menu item with an empty label. * The item's state is initially set to "off." * @exception HeadlessException if GraphicsEnvironment.isHeadless() * returns true * @see java.awt.GraphicsEnvironment#isHeadless * @since JDK1.1 */ public CheckboxMenuItem() throws HeadlessException { this("", false); } /** * Create a check box menu item with the specified label. * The item's state is initially set to "off." * @param label a string label for the check box menu item, * or <code>null</code> for an unlabeled menu item. * @exception HeadlessException if GraphicsEnvironment.isHeadless() * returns true * @see java.awt.GraphicsEnvironment#isHeadless */ public CheckboxMenuItem(String label) throws HeadlessException { this(label, false); } /** * Create a check box menu item with the specified label and state. * @param label a string label for the check box menu item, * or <code>null</code> for an unlabeled menu item. * @param state the initial state of the menu item, where * <code>true</code> indicates "on" and * <code>false</code> indicates "off." * @exception HeadlessException if GraphicsEnvironment.isHeadless() * returns true * @see java.awt.GraphicsEnvironment#isHeadless * @since JDK1.1 */ public CheckboxMenuItem(String label, boolean state) throws HeadlessException { super(label); this.state = state; } /** * Construct a name for this MenuComponent. Called by getName() when * the name is null. */ String constructComponentName() { synchronized (CheckboxMenuItem.class) { return base + nameCounter++; } } /** * Creates the peer of the checkbox item. This peer allows us to * change the look of the checkbox item without changing its * functionality. * Most applications do not call this method directly. * @see java.awt.Toolkit#createCheckboxMenuItem(java.awt.CheckboxMenuItem) * @see java.awt.Component#getToolkit() */ public void addNotify() { synchronized (getTreeLock()) { if (peer == null) peer = Toolkit.getDefaultToolkit().createCheckboxMenuItem(this); super.addNotify(); } } /** * Determines whether the state of this check box menu item * is "on" or "off." * * @return the state of this check box menu item, where * <code>true</code> indicates "on" and * <code>false</code> indicates "off" * @see #setState */ public boolean getState() { return state; } /** * Sets this check box menu item to the specified state. * The boolean value <code>true</code> indicates "on" while * <code>false</code> indicates "off." * * <p>Note that this method should be primarily used to * initialize the state of the check box menu item. * Programmatically setting the state of the check box * menu item will <i>not</i> trigger * an <code>ItemEvent</code>. The only way to trigger an * <code>ItemEvent</code> is by user interaction. * * @param b <code>true</code> if the check box * menu item is on, otherwise <code>false</code> * @see #getState */ public synchronized void setState(boolean b) { state = b; CheckboxMenuItemPeer peer = (CheckboxMenuItemPeer)this.peer; if (peer != null) { peer.setState(b); } } /** * Returns the an array (length 1) containing the checkbox menu item * label or null if the checkbox is not selected. * @see ItemSelectable */ public synchronized Object[] getSelectedObjects() { if (state) { Object[] items = new Object[1]; items[0] = label; return items; } return null; } /** * Adds the specified item listener to receive item events from * this check box menu item. Item events are sent in response to user * actions, but not in response to calls to setState(). * If l is null, no exception is thrown and no action is performed. * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" * >AWT Threading Issues</a> for details on AWT's threading model. * * @param l the item listener * @see #removeItemListener * @see #getItemListeners * @see #setState * @see java.awt.event.ItemEvent * @see java.awt.event.ItemListener * @since JDK1.1 */ public synchronized void addItemListener(ItemListener l) { if (l == null) { return; } itemListener = AWTEventMulticaster.add(itemListener, l); newEventsOnly = true; } /** * Removes the specified item listener so that it no longer receives * item events from this check box menu item. * If l is null, no exception is thrown and no action is performed. * <p>Refer to <a href="doc-files/AWTThreadIssues.html#ListenersThreads" * >AWT Threading Issues</a> for details on AWT's threading model. * * @param l the item listener * @see #addItemListener * @see #getItemListeners * @see java.awt.event.ItemEvent * @see java.awt.event.ItemListener * @since JDK1.1 */ public synchronized void removeItemListener(ItemListener l) { if (l == null) { return; } itemListener = AWTEventMulticaster.remove(itemListener, l); } /** * Returns an array of all the item listeners * registered on this checkbox menuitem. * * @return all of this checkbox menuitem's <code>ItemListener</code>s * or an empty array if no item * listeners are currently registered * * @see #addItemListener * @see #removeItemListener * @see java.awt.event.ItemEvent * @see java.awt.event.ItemListener * @since 1.4 */ public synchronized ItemListener[] getItemListeners() { return getListeners(ItemListener.class); } /** * Returns an array of all the objects currently registered * as <code><em>Foo</em>Listener</code>s * upon this <code>CheckboxMenuItem</code>. * <code><em>Foo</em>Listener</code>s are registered using the * <code>add<em>Foo</em>Listener</code> method. * * <p> * You can specify the <code>listenerType</code> argument * with a class literal, such as * <code><em>Foo</em>Listener.class</code>. * For example, you can query a * <code>CheckboxMenuItem</code> <code>c</code> * for its item listeners with the following code: * * <pre>ItemListener[] ils = (ItemListener[])(c.getListeners(ItemListener.class));</pre> * * If no such listeners exist, this method returns an empty array. * * @param listenerType the type of listeners requested; this parameter * should specify an interface that descends from * <code>java.util.EventListener</code> * @return an array of all objects registered as * <code><em>Foo</em>Listener</code>s on this checkbox menuitem, * or an empty array if no such * listeners have been added * @exception ClassCastException if <code>listenerType</code> * doesn't specify a class or interface that implements * <code>java.util.EventListener</code> * * @see #getItemListeners * @since 1.3 */ public <T extends EventListener> T[] getListeners(Class<T> listenerType) { EventListener l = null; if (listenerType == ItemListener.class) { l = itemListener; } else { return super.getListeners(listenerType); } return AWTEventMulticaster.getListeners(l, listenerType); } // REMIND: remove when filtering is done at lower level boolean eventEnabled(AWTEvent e) { if (e.id == ItemEvent.ITEM_STATE_CHANGED) { if ((eventMask & AWTEvent.ITEM_EVENT_MASK) != 0 || itemListener != null) { return true; } return false; } return super.eventEnabled(e); } /** * Processes events on this check box menu item. * If the event is an instance of <code>ItemEvent</code>, * this method invokes the <code>processItemEvent</code> method. * If the event is not an item event, * it invokes <code>processEvent</code> on the superclass. * <p> * Check box menu items currently support only item events. * <p>Note that if the event parameter is <code>null</code> * the behavior is unspecified and may result in an * exception. * * @param e the event * @see java.awt.event.ItemEvent * @see #processItemEvent * @since JDK1.1 */ protected void processEvent(AWTEvent e) { if (e instanceof ItemEvent) { processItemEvent((ItemEvent)e); return; } super.processEvent(e); } /** * Processes item events occurring on this check box menu item by * dispatching them to any registered <code>ItemListener</code> objects. * <p> * This method is not called unless item events are * enabled for this menu item. Item events are enabled * when one of the following occurs: * <ul> * <li>An <code>ItemListener</code> object is registered * via <code>addItemListener</code>. * <li>Item events are enabled via <code>enableEvents</code>. * </ul> * <p>Note that if the event parameter is <code>null</code> * the behavior is unspecified and may result in an * exception. * * @param e the item event * @see java.awt.event.ItemEvent * @see java.awt.event.ItemListener * @see #addItemListener * @see java.awt.MenuItem#enableEvents * @since JDK1.1 */ protected void processItemEvent(ItemEvent e) { ItemListener listener = itemListener; if (listener != null) { listener.itemStateChanged(e); } } /* * Post an ItemEvent and toggle state. */ void doMenuEvent(long when, int modifiers) { setState(!state); Toolkit.getEventQueue().postEvent( new ItemEvent(this, ItemEvent.ITEM_STATE_CHANGED, getLabel(), state ? ItemEvent.SELECTED : ItemEvent.DESELECTED)); } /** * Returns a string representing the state of this * <code>CheckBoxMenuItem</code>. This * method is intended to be used only for debugging purposes, and the * content and format of the returned string may vary between * implementations. The returned string may be empty but may not be * <code>null</code>. * * @return the parameter string of this check box menu item */ public String paramString() { return super.paramString() + ",state=" + state; } /* Serialization support. */ /* * Serial Data Version * @serial */ private int checkboxMenuItemSerializedDataVersion = 1; /** * Writes default serializable fields to stream. Writes * a list of serializable <code>ItemListeners</code> * as optional data. The non-serializable * <code>ItemListeners</code> are detected and * no attempt is made to serialize them. * * @param s the <code>ObjectOutputStream</code> to write * @serialData <code>null</code> terminated sequence of * 0 or more pairs; the pair consists of a <code>String</code> * and an <code>Object</code>; the <code>String</code> indicates * the type of object and is one of the following: * <code>itemListenerK</code> indicating an * <code>ItemListener</code> object * * @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener) * @see java.awt.Component#itemListenerK * @see #readObject(ObjectInputStream) */ private void writeObject(ObjectOutputStream s) throws java.io.IOException { s.defaultWriteObject(); AWTEventMulticaster.save(s, itemListenerK, itemListener); s.writeObject(null); } /* * Reads the <code>ObjectInputStream</code> and if it * isn't <code>null</code> adds a listener to receive * item events fired by the <code>Checkbox</code> menu item. * Unrecognized keys or values will be ignored. * * @param s the <code>ObjectInputStream</code> to read * @serial * @see removeActionListener() * @see addActionListener() * @see #writeObject */ private void readObject(ObjectInputStream s) throws ClassNotFoundException, IOException { s.defaultReadObject(); Object keyOrNull; while(null != (keyOrNull = s.readObject())) { String key = ((String)keyOrNull).intern(); if (itemListenerK == key) addItemListener((ItemListener)(s.readObject())); else // skip value for unrecognized key s.readObject(); } } /** * Initialize JNI field and method IDs */ private static native void initIDs(); ///////////////// // Accessibility support //////////////// /** * Gets the AccessibleContext associated with this CheckboxMenuItem. * For checkbox menu items, the AccessibleContext takes the * form of an AccessibleAWTCheckboxMenuItem. * A new AccessibleAWTCheckboxMenuItem is created if necessary. * * @return an AccessibleAWTCheckboxMenuItem that serves as the * AccessibleContext of this CheckboxMenuItem * @since 1.3 */ public AccessibleContext getAccessibleContext() { if (accessibleContext == null) { accessibleContext = new AccessibleAWTCheckboxMenuItem(); } return accessibleContext; } /** * Inner class of CheckboxMenuItem used to provide default support for * accessibility. This class is not meant to be used directly by * application developers, but is instead meant only to be * subclassed by menu component developers. * <p> * This class implements accessibility support for the * <code>CheckboxMenuItem</code> class. It provides an implementation * of the Java Accessibility API appropriate to checkbox menu item * user-interface elements. * @since 1.3 */ protected class AccessibleAWTCheckboxMenuItem extends AccessibleAWTMenuItem implements AccessibleAction, AccessibleValue { /* * JDK 1.3 serialVersionUID */ private static final long serialVersionUID = -1122642964303476L; /** * Get the AccessibleAction associated with this object. In the * implementation of the Java Accessibility API for this class, * return this object, which is responsible for implementing the * AccessibleAction interface on behalf of itself. * * @return this object */ public AccessibleAction getAccessibleAction() { return this; } /** * Get the AccessibleValue associated with this object. In the * implementation of the Java Accessibility API for this class, * return this object, which is responsible for implementing the * AccessibleValue interface on behalf of itself. * * @return this object */ public AccessibleValue getAccessibleValue() { return this; } /** * Returns the number of Actions available in this object. * If there is more than one, the first one is the "default" * action. * * @return the number of Actions in this object */ public int getAccessibleActionCount() { return 0; // To be fully implemented in a future release } /** * Return a description of the specified action of the object. * * @param i zero-based index of the actions */ public String getAccessibleActionDescription(int i) { return null; // To be fully implemented in a future release } /** * Perform the specified Action on the object * * @param i zero-based index of actions * @return true if the action was performed; otherwise false. */ public boolean doAccessibleAction(int i) { return false; // To be fully implemented in a future release } /** * Get the value of this object as a Number. If the value has not been * set, the return value will be null. * * @return value of the object * @see #setCurrentAccessibleValue */ public Number getCurrentAccessibleValue() { return null; // To be fully implemented in a future release } /** * Set the value of this object as a Number. * * @return true if the value was set; otherwise false * @see #getCurrentAccessibleValue */ public boolean setCurrentAccessibleValue(Number n) { return false; // To be fully implemented in a future release } /** * Get the minimum value of this object as a Number. * * @return Minimum value of the object; null if this object does not * have a minimum value * @see #getMaximumAccessibleValue */ public Number getMinimumAccessibleValue() { return null; // To be fully implemented in a future release } /** * Get the maximum value of this object as a Number. * * @return Maximum value of the object; null if this object does not * have a maximum value * @see #getMinimumAccessibleValue */ public Number getMaximumAccessibleValue() { return null; // To be fully implemented in a future release } /** * Get the role of this object. * * @return an instance of AccessibleRole describing the role of the * object */ public AccessibleRole getAccessibleRole() { return AccessibleRole.CHECK_BOX; } } // class AccessibleAWTMenuItem }
⏎ java/awt/CheckboxMenuItem.java
Or download all of them as a single archive file:
File name: jre-rt-java-1.8.0_191-src.zip File size: 6664831 bytes Release date: 2018-10-28 Download
⇒ JRE 8 rt.jar - javax.* Package Source Code
2023-08-23, 306350👍, 4💬
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