ide/usersguide/javahelp/org/netbeans/modules/usersguide/f1_java_gui011.htm - netbeans - Git at Google

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 <head>
 <title>Variables Modifier Property Editor</title>
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 <h1>Variables Modifier Property Editor</h1>
 <a name="BEGIN" id="BEGIN"></a>
 <p>Use to define standard Java language modifiers for a Java element. The items that are available in this property editor depend on the type of Java element being modified.
 <object classid="java:org.netbeans.modules.javahelp.BrowserDisplayer">
 <param name="content" value="http://www.oracle.com/pls/topic/lookup?ctx=nb8200&id=NBDAG2619">
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 <param name="textFontSize" value="medium">
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 <a id="NBCSH2301" name="NBCSH2301"></a>
 <p><b>Access Modifiers</b></p>
 <p>Access modifiers determine where a Java class, method, or field can be accessed.</p>

 <table summary="User interface elements and descriptions" dir="ltr" border="1" width="100%" frame="hsides" rules="groups" cellpadding="3" cellspacing="0">
 <col width="24%" />
 <col width="*" />
 <thead>
 <tr align="left" valign="top">
 <th align="left" valign="bottom" id="r1c1-t8">Element</th>
 <th align="left" valign="bottom" id="r1c2-t8">Description</th>
 </tr>
 </thead>
 <tbody>
 <tr align="left" valign="top">
 <td align="left" id="r2c1-t8" headers="r1c1-t8">
 <p>Default</p>
 </td>
 <td align="left" headers="r2c1-t8 r1c2-t8">The Java element is accessible to any class in the same package.</td>
 </tr>
 <tr align="left" valign="top">
 <td align="left" id="r3c1-t8" headers="r1c1-t8">
 <p>Private</p>
 </td>
 <td align="left" headers="r3c1-t8 r1c2-t8">The Java method or field is accessible within the current class.</td>
 </tr>
 <tr align="left" valign="top">
 <td align="left" id="r4c1-t8" headers="r1c1-t8">
 <p>Protected</p>
 </td>
 <td align="left" headers="r4c1-t8 r1c2-t8">The Java method or field is accessible within the current class and subclasses.</td>
 </tr>
 <tr align="left" valign="top">
 <td align="left" id="r5c1-t8" headers="r1c1-t8">
 <p>Public</p>
 </td>
 <td align="left" headers="r5c1-t8 r1c2-t8">The Java element is accessible to any class.</td>
 </tr>
 </tbody>
 </table>
 <br />
 <!-- -->
 <a id="NBCSH2306" name="NBCSH2306"></a>
 <p><b>Other Modifiers</b></p>
 <p>Other modifiers define how a Java element can be used, or how it interacts with other classes.</p>

 <table summary="User interface elements and descriptions" dir="ltr" border="1" width="100%" frame="hsides" rules="groups" cellpadding="3" cellspacing="0">
 <col width="24%" />
 <col width="*" />
 <thead>
 <tr align="left" valign="top">
 <th align="left" valign="bottom" id="r1c1-t9">Element</th>
 <th align="left" valign="bottom" id="r1c2-t9">Description</th>
 </tr>
 </thead>
 <tbody>
 <tr align="left" valign="top">
 <td align="left" id="r2c1-t9" headers="r1c1-t9">
 <p>Abstract</p>
 </td>
 <td align="left" headers="r2c1-t9 r1c2-t9">An abstract class contains some methods that are not defined and must be implemented in subclasses. An abstract method contains no body and must be overridden in subclasses.</td>
 </tr>
 <tr align="left" valign="top">
 <td align="left" id="r3c1-t9" headers="r1c1-t9">
 <p>Static</p>
 </td>
 <td align="left" headers="r3c1-t9 r1c2-t9">A static method or field is shared by all instances of the current class.</td>
 </tr>
 <tr align="left" valign="top">
 <td align="left" id="r4c1-t9" headers="r1c1-t9">
 <p>Transient</p>
 </td>
 <td align="left" headers="r4c1-t9 r1c2-t9">A transient field is not saved if the object is serialized.</td>
 </tr>
 <tr align="left" valign="top">
 <td align="left" id="r5c1-t9" headers="r1c1-t9">
 <p>Native</p>
 </td>
 <td align="left" headers="r5c1-t9 r1c2-t9">A native method is invoked from a Java application, but written in another "native" language, usually C or C++.</td>
 </tr>
 <tr align="left" valign="top">
 <td align="left" id="r6c1-t9" headers="r1c1-t9">
 <p>Final</p>
 </td>
 <td align="left" headers="r6c1-t9 r1c2-t9">A final class may not be used as a superclass. A final method may not be overridden by a subclass. A final field's value cannot be changed.</td>
 </tr>
 <tr align="left" valign="top">
 <td align="left" id="r7c1-t9" headers="r1c1-t9">
 <p>Synchronized</p>
 </td>
 <td align="left" headers="r7c1-t9 r1c2-t9">A synchronized method will seize control of the class while it is running. This is used in a multithreaded environment to make sure two threads do not access an object at the same time.</td>
 </tr>
 <tr align="left" valign="top">
 <td align="left" id="r8c1-t9" headers="r1c1-t9">
 <p>Volatile</p>
 </td>
 <td align="left" headers="r8c1-t9 r1c2-t9">A volatile field's value can be changed by unsynchronized threads.</td>
 </tr>
 </tbody>
 </table>
 <br />
 <!-- -->
 <a id="NBCSH2314" name="NBCSH2314"></a>
 <hr><p><b>Related Topics</b></p>
 <p>Developing Applications with NetBeans IDE,
 <object classid="java:org.netbeans.modules.javahelp.BrowserDisplayer">
 <param name="content" value="http://www.oracle.com/pls/topic/lookup?ctx=nb8200&id=NBDAG2578">
 <param name="text" value="<html><u>&quot;Working with the GUI Builder&quot;</u></html>">
 <param name="textFontSize" value="medium">
 <param name="textColor" value="blue">
 </object>
 </p>

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 Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements; and to You under the Apache License, Version 2.0.</a>
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	Licensed to the Apache Software Foundation (ASF) under one
	or more contributor license agreements. See the NOTICE file
	distributed with this work for additional information
	regarding copyright ownership. The ASF licenses this file
	to you under the Apache License, Version 2.0 (the
	"License"); you may not use this file except in compliance
	with the License. You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing,
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	<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" dir="ltr">
	<head>
	<title>Variables Modifier Property Editor</title>
	<link rel="stylesheet" href="ide.css" title="Oracle BLAFDoc" type="text/css"/>
	</head>

	<body>
	<p><a id="org.openide.explorer.propertysheet.editors.ModifierEditor" name="org.openide.explorer.propertysheet.editors.ModifierEditor"></a></p>
	<div id="NBCSH2300"><!-- infolevel="all" infotype="General" --><a id="sthref314" name="sthref314"></a>
	<h1>Variables Modifier Property Editor</h1>
	<a name="BEGIN" id="BEGIN"></a>
	<p>Use to define standard Java language modifiers for a Java element. The items that are available in this property editor depend on the type of Java element being modified.
	<object classid="java:org.netbeans.modules.javahelp.BrowserDisplayer">
	<param name="content" value="http://www.oracle.com/pls/topic/lookup?ctx=nb8200&id=NBDAG2619">
	<param name="text" value="<html><u>How?</u></html>">
	<param name="textFontSize" value="medium">
	<param name="textColor" value="blue">
	</object>
	</p>
	<a id="NBCSH2301" name="NBCSH2301"></a>
	<p><b>Access Modifiers</b></p>
	<p>Access modifiers determine where a Java class, method, or field can be accessed.</p>

	<table summary="User interface elements and descriptions" dir="ltr" border="1" width="100%" frame="hsides" rules="groups" cellpadding="3" cellspacing="0">
	<col width="24%" />
	<col width="*" />
	<thead>
	<tr align="left" valign="top">
	<th align="left" valign="bottom" id="r1c1-t8">Element</th>
	<th align="left" valign="bottom" id="r1c2-t8">Description</th>
	</tr>
	</thead>
	<tbody>
	<tr align="left" valign="top">
	<td align="left" id="r2c1-t8" headers="r1c1-t8">
	<p>Default</p>
	</td>
	<td align="left" headers="r2c1-t8 r1c2-t8">The Java element is accessible to any class in the same package.</td>
	</tr>
	<tr align="left" valign="top">
	<td align="left" id="r3c1-t8" headers="r1c1-t8">
	<p>Private</p>
	</td>
	<td align="left" headers="r3c1-t8 r1c2-t8">The Java method or field is accessible within the current class.</td>
	</tr>
	<tr align="left" valign="top">
	<td align="left" id="r4c1-t8" headers="r1c1-t8">
	<p>Protected</p>
	</td>
	<td align="left" headers="r4c1-t8 r1c2-t8">The Java method or field is accessible within the current class and subclasses.</td>
	</tr>
	<tr align="left" valign="top">
	<td align="left" id="r5c1-t8" headers="r1c1-t8">
	<p>Public</p>
	</td>
	<td align="left" headers="r5c1-t8 r1c2-t8">The Java element is accessible to any class.</td>
	</tr>
	</tbody>
	</table>
	<br />
	<!-- -->
	<a id="NBCSH2306" name="NBCSH2306"></a>
	<p><b>Other Modifiers</b></p>
	<p>Other modifiers define how a Java element can be used, or how it interacts with other classes.</p>

	<table summary="User interface elements and descriptions" dir="ltr" border="1" width="100%" frame="hsides" rules="groups" cellpadding="3" cellspacing="0">
	<col width="24%" />
	<col width="*" />
	<thead>
	<tr align="left" valign="top">
	<th align="left" valign="bottom" id="r1c1-t9">Element</th>
	<th align="left" valign="bottom" id="r1c2-t9">Description</th>
	</tr>
	</thead>
	<tbody>
	<tr align="left" valign="top">
	<td align="left" id="r2c1-t9" headers="r1c1-t9">
	<p>Abstract</p>
	</td>
	<td align="left" headers="r2c1-t9 r1c2-t9">An abstract class contains some methods that are not defined and must be implemented in subclasses. An abstract method contains no body and must be overridden in subclasses.</td>
	</tr>
	<tr align="left" valign="top">
	<td align="left" id="r3c1-t9" headers="r1c1-t9">
	<p>Static</p>
	</td>
	<td align="left" headers="r3c1-t9 r1c2-t9">A static method or field is shared by all instances of the current class.</td>
	</tr>
	<tr align="left" valign="top">
	<td align="left" id="r4c1-t9" headers="r1c1-t9">
	<p>Transient</p>
	</td>
	<td align="left" headers="r4c1-t9 r1c2-t9">A transient field is not saved if the object is serialized.</td>
	</tr>
	<tr align="left" valign="top">
	<td align="left" id="r5c1-t9" headers="r1c1-t9">
	<p>Native</p>
	</td>
	<td align="left" headers="r5c1-t9 r1c2-t9">A native method is invoked from a Java application, but written in another "native" language, usually C or C++.</td>
	</tr>
	<tr align="left" valign="top">
	<td align="left" id="r6c1-t9" headers="r1c1-t9">
	<p>Final</p>
	</td>
	<td align="left" headers="r6c1-t9 r1c2-t9">A final class may not be used as a superclass. A final method may not be overridden by a subclass. A final field's value cannot be changed.</td>
	</tr>
	<tr align="left" valign="top">
	<td align="left" id="r7c1-t9" headers="r1c1-t9">
	<p>Synchronized</p>
	</td>
	<td align="left" headers="r7c1-t9 r1c2-t9">A synchronized method will seize control of the class while it is running. This is used in a multithreaded environment to make sure two threads do not access an object at the same time.</td>
	</tr>
	<tr align="left" valign="top">
	<td align="left" id="r8c1-t9" headers="r1c1-t9">
	<p>Volatile</p>
	</td>
	<td align="left" headers="r8c1-t9 r1c2-t9">A volatile field's value can be changed by unsynchronized threads.</td>
	</tr>
	</tbody>
	</table>
	<br />
	<!-- -->
	<a id="NBCSH2314" name="NBCSH2314"></a>
	<hr><p><b>Related Topics</b></p>
	<p>Developing Applications with NetBeans IDE,
	<object classid="java:org.netbeans.modules.javahelp.BrowserDisplayer">
	<param name="content" value="http://www.oracle.com/pls/topic/lookup?ctx=nb8200&id=NBDAG2578">
	<param name="text" value="<html><u>"Working with the GUI Builder"</u></html>">
	<param name="textFontSize" value="medium">
	<param name="textColor" value="blue">
	</object>
	</p>

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	<table summary="" cellspacing="0" cellpadding="0" width="100%">
	<tr>
	<td align="left" width="86%"><a href="legal_notice.htm">
	Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements; and to You under the Apache License, Version 2.0.</a>
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