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MID Profile: Class System
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SUMMARY: INNER | <A HREF="#field_summary">FIELD</A> | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD>
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java.lang</FONT>
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Class System</H2>
<PRE>
<A HREF="../../java/lang/Object.html">java.lang.Object</A>
|
+--<B>java.lang.System</B>
</PRE>
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<DT>public final class <B>System</B><DT>extends <A HREF="../../java/lang/Object.html">Object</A></DL>
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The <code>System</code> class contains several useful class fields and methods. It cannot be instantiated.
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<DT><B>Since: </B><DD>JDK1.0</DD>
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<B>Field Summary</B></FONT></TD>
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<CODE>static <A HREF="../../java/io/PrintStream.html">PrintStream</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/lang/System.html#err">err</A></B></CODE>
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The "standard" error output stream.</TD>
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<CODE>static <A HREF="../../java/io/PrintStream.html">PrintStream</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/lang/System.html#out">out</A></B></CODE>
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The "standard" output stream.</TD>
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<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/lang/System.html#arraycopy(java.lang.Object, int, java.lang.Object, int, int)">arraycopy</A></B>(<A HREF="../../java/lang/Object.html">Object</A> src, int src_position, <A HREF="../../java/lang/Object.html">Object</A> dst, int dst_position, int length)</CODE>
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Copies an array from the specified source array, beginning at the specified position, to the specified position of the destination array.</TD>
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<CODE>static long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/lang/System.html#currentTimeMillis()">currentTimeMillis</A></B>()</CODE>
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Returns the current time in milliseconds.</TD>
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<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/lang/System.html#exit(int)">exit</A></B>(int status)</CODE>
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Terminates the currently running Java application.</TD>
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<CODE>static void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/lang/System.html#gc()">gc</A></B>()</CODE>
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Runs the garbage collector.</TD>
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<CODE>static <A HREF="../../java/lang/String.html">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/lang/System.html#getProperty(java.lang.String)">getProperty</A></B>(<A HREF="../../java/lang/String.html">String</A> key)</CODE>
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Gets the system property indicated by the specified key.</TD>
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<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../java/lang/System.html#identityHashCode(java.lang.Object)">identityHashCode</A></B>(<A HREF="../../java/lang/Object.html">Object</A> x)</CODE>
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Returns the same hashcode for the given object as would be returned by the default method hashCode(), whether or not the given object's class overrides hashCode().</TD>
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<TD><B>Methods inherited from class java.lang.<A HREF="../../java/lang/Object.html">Object</A></B></TD>
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<TD><CODE><A HREF="../../java/lang/Object.html#equals(java.lang.Object)">equals</A>, <A HREF="../../java/lang/Object.html#getClass()">getClass</A>, <A HREF="../../java/lang/Object.html#hashCode()">hashCode</A>, <A HREF="../../java/lang/Object.html#notify()">notify</A>, <A HREF="../../java/lang/Object.html#notifyAll()">notifyAll</A>, <A HREF="../../java/lang/Object.html#toString()">toString</A>, <A HREF="../../java/lang/Object.html#wait()">wait</A>, <A HREF="../../java/lang/Object.html#wait(long)">wait</A>, <A HREF="../../java/lang/Object.html#wait(long, int)">wait</A></CODE></TD>
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<A NAME="out"><!-- --></A><H3>
out</H3>
<PRE>
public static final <A HREF="../../java/io/PrintStream.html">PrintStream</A> <B>out</B></PRE>
<DL>
<DD>The "standard" output stream. This stream is already open and ready to accept output data. Typically this stream corresponds to display output or another output destination specified by the host environment or user. <p> For simple stand-alone Java applications, a typical way to write a line of output data is: <blockquote><pre> System.out.println(data) </pre></blockquote> <p> See the <code>println</code> methods in class <code>PrintStream</code>.<DD><DL>
<DT><B>See Also: </B><DD><A HREF="../../java/io/PrintStream.html#println()"><CODE>PrintStream.println()</CODE></A>,
<A HREF="../../java/io/PrintStream.html#println(boolean)"><CODE>PrintStream.println(boolean)</CODE></A>,
<A HREF="../../java/io/PrintStream.html#println(char)"><CODE>PrintStream.println(char)</CODE></A>,
<A HREF="../../java/io/PrintStream.html#println(char[])"><CODE>PrintStream.println(char[])</CODE></A>,
<A HREF="../../java/io/PrintStream.html#println(int)"><CODE>PrintStream.println(int)</CODE></A>,
<A HREF="../../java/io/PrintStream.html#println(long)"><CODE>PrintStream.println(long)</CODE></A>,
<A HREF="../../java/io/PrintStream.html#println(java.lang.Object)"><CODE>PrintStream.println(java.lang.Object)</CODE></A>,
<A HREF="../../java/io/PrintStream.html#println(java.lang.String)"><CODE>PrintStream.println(java.lang.String)</CODE></A></DL>
</DD>
</DL>
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<A NAME="err"><!-- --></A><H3>
err</H3>
<PRE>
public static final <A HREF="../../java/io/PrintStream.html">PrintStream</A> <B>err</B></PRE>
<DL>
<DD>The "standard" error output stream. This stream is already open and ready to accept output data. <p> Typically this stream corresponds to display output or another output destination specified by the host environment or user. By convention, this output stream is used to display error messages or other information that should come to the immediate attention of a user even if the principal output stream, the value of the variable <code>out</code>, has been redirected to a file or other destination that is typically not continuously monitored.</DL>
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