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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Fri Sep 27 14:47:27 CDT 2002 --><TITLE>Mobile Information Device Profile 2.0: Uses of Package java.lang</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <FONT CLASS="NavBarFont1">Class</FONT> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Use</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><strong>MIDP 2.0</strong></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> PREV NEXT</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="package-use.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><CENTER><H2><B>Uses of Package<br>java.lang</B></H2></CENTER><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2">Packages that use <A HREF="../../java/lang/package-summary.html">java.lang</A></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#java.io"><B>java.io</B></A></TD><TD>Provides for system input and output through data streams. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#java.lang"><B>java.lang</B></A></TD><TD>MID Profile Language Classes included from Java 2 Standard Edition. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#java.util"><B>java.util</B></A></TD><TD>MID Profile Utility Classes included from Java 2 Standard Edition. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#javax.microedition.io"><B>javax.microedition.io</B></A></TD><TD> MID Profile includes networking support based on the <code>Generic Connection</code> framework from the <em>Connected, Limited Device Configuration</em>. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#javax.microedition.lcdui"><B>javax.microedition.lcdui</B></A></TD><TD>The UI API provides a set of features for implementation of user interfaces for MIDP applications. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#javax.microedition.lcdui.game"><B>javax.microedition.lcdui.game</B></A></TD><TD>The Game API package provides a series of classes that enable the
development of rich gaming content for wireless devices. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#javax.microedition.media"><B>javax.microedition.media</B></A></TD><TD>The MIDP 2.0 Media API is a directly compatible building block of theMobile Media API (JSR-135) specification. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#javax.microedition.midlet"><B>javax.microedition.midlet</B></A></TD><TD>The MIDlet package defines Mobile Information Device Profile applications and the interactions between the application and the environment in which the application runs. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#javax.microedition.pki"><B>javax.microedition.pki</B></A></TD><TD>Certificates are used to authenticate information for secure Connections. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#javax.microedition.rms"><B>javax.microedition.rms</B></A></TD><TD>The Mobile Information Device Profile provides a mechanism for MIDlets to persistently store data and later retrieve it. </TD></TR></TABLE> <P><A NAME="java.io"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2">Classes in <A HREF="../../java/lang/package-summary.html">java.lang</A> used by java.io<TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Exception.html#java.io"><B>Exception</B></A></B><BR> The class <code>Exception</code> and its subclasses are a form of <code>Throwable</code> that indicates conditions that a reasonable application might want to catch.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Object.html#java.io"><B>Object</B></A></B><BR> Class <code>Object</code> is the root of the class hierarchy.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Throwable.html#java.io"><B>Throwable</B></A></B><BR> The <code>Throwable</code> class is the superclass of all errors and exceptions in the Java language.</TD></TR></FONT></TD></TR></TABLE> <P><A NAME="java.lang"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2">Classes in <A HREF="../../java/lang/package-summary.html">java.lang</A> used by <A HREF="../../java/lang/package-summary.html">java.lang</A><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Class.html#java.lang"><B>Class</B></A></B><BR> Instances of the class <code>Class</code> represent classes and interfaces in a running Java application.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/ClassNotFoundException.html#java.lang"><B>ClassNotFoundException</B></A></B><BR> Thrown when an application tries to load in a class through its string name using: The <code>forName</code> method in class <code>Class</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Error.html#java.lang"><B>Error</B></A></B><BR> An <code>Error</code> is a subclass of <code>Throwable</code> that indicates serious problems that a reasonable application should not try to catch.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Exception.html#java.lang"><B>Exception</B></A></B><BR> The class <code>Exception</code> and its subclasses are a form of <code>Throwable</code> that indicates conditions that a reasonable application might want to catch.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/IllegalAccessException.html#java.lang"><B>IllegalAccessException</B></A></B><BR> Thrown when an application tries to load in a class, but the currently executing method does not have access to the definition of the specified class, because the class is not public and in another package.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/IllegalArgumentException.html#java.lang"><B>IllegalArgumentException</B></A></B><BR> Thrown to indicate that a method has been passed an illegal or inappropriate argument.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/IndexOutOfBoundsException.html#java.lang"><B>IndexOutOfBoundsException</B></A></B><BR> Thrown to indicate that an index of some sort (such as to an array, to a string, or to a vector) is out of range.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/InstantiationException.html#java.lang"><B>InstantiationException</B></A></B><BR> Thrown when an application tries to create an instance of a class using the <code>newInstance</code> method in class <code>Class</code>, but the specified class object cannot be instantiated because it is an interface or is an abstract class.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Integer.html#java.lang"><B>Integer</B></A></B><BR> The Integer class wraps a value of the primitive type <code>int</code> in an object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/InterruptedException.html#java.lang"><B>InterruptedException</B></A></B><BR> Thrown when a thread is waiting, sleeping, or otherwise paused for a long time and another thread interrupts it using the <code>interrupt</code> method in class <code>Thread</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/NumberFormatException.html#java.lang"><B>NumberFormatException</B></A></B><BR> Thrown to indicate that the application has attempted to convert a string to one of the numeric types, but that the string does not have the appropriate format.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Object.html#java.lang"><B>Object</B></A></B><BR> Class <code>Object</code> is the root of the class hierarchy.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Runnable.html#java.lang"><B>Runnable</B></A></B><BR> The <code>Runnable</code> interface should be implemented by any class whose instances are intended to be executed by a thread.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Runtime.html#java.lang"><B>Runtime</B></A></B><BR> Every Java application has a single instance of class <code>Runtime</code> that allows the application to interface with the environment in which the application is running.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/RuntimeException.html#java.lang"><B>RuntimeException</B></A></B><BR> <code>RuntimeException</code> is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/String.html#java.lang"><B>String</B></A></B><BR> The <code>String</code> class represents character strings.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/StringBuffer.html#java.lang"><B>StringBuffer</B></A></B><BR> A string buffer implements a mutable sequence of characters.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Thread.html#java.lang"><B>Thread</B></A></B><BR> A <i>thread</i> is a thread of execution in a program.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Throwable.html#java.lang"><B>Throwable</B></A></B><BR> The <code>Throwable</code> class is the superclass of all errors and exceptions in the Java language.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/VirtualMachineError.html#java.lang"><B>VirtualMachineError</B></A></B><BR> Thrown to indicate that the Java Virtual Machine is broken or has run out of resources necessary for it to continue operating.</TD></TR></FONT></TD></TR></TABLE> <P><A NAME="java.util"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2">Classes in <A HREF="../../java/lang/package-summary.html">java.lang</A> used by <A HREF="../../java/util/package-summary.html">java.util</A><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Exception.html#java.util"><B>Exception</B></A></B><BR> The class <code>Exception</code> and its subclasses are a form of <code>Throwable</code> that indicates conditions that a reasonable application might want to catch.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/lang/class-use/Object.html#java.util"><B>Object</B></A></B><BR> Class <code>Object</code> is the root of the class hierarchy.</TD>⌨️ 快捷键说明
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