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java语言规范

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<p><font size=-1>	&lt;a href="#notifyAll()"&gt;&lt;b&gt;notifyAll&lt;/b&gt;&lt;/a&gt;()</font><p>
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<p><font size=-1>  &lt;dd&gt; Notifies all the threads waiting for a condition to</font><p>
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<p><font size=-1>change.</font><p>
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<p><font size=-1>  &lt;dt&gt; &lt;img src="images/red-ball-small.gif" width=6 height=6 alt=" o "&gt;</font><p>
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<p><font size=-1>	&lt;a href="#toString()"&gt;&lt;b&gt;toString&lt;/b&gt;&lt;/a&gt;()</font><p>
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<p><font size=-1>  &lt;dd&gt; Returns a String that represents this Object.</font><p>
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<p><font size=-1>  &lt;dt&gt; &lt;img src="images/red-ball-small.gif" width=6 height=6 alt=" o "&gt;</font><p>
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<p><font size=-1>	&lt;a href="#wait()"&gt;&lt;b&gt;wait&lt;/b&gt;&lt;/a&gt;()</font><p>
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<p><font size=-1>  &lt;dd&gt; Causes a thread to wait forever until it is notified.</font><p>
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<p><font size=-1>  &lt;dt&gt; &lt;img src="images/red-ball-small.gif" width=6 height=6 alt=" o "&gt;</font><p>
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<p><font size=-1>	&lt;a href="#wait(long)"&gt;&lt;b&gt;wait&lt;/b&gt;&lt;/a&gt;(long)</font><p>
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<p><font size=-1>  &lt;dd&gt; Causes a thread to wait until it is notified or the</font><p>
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<p><font size=-1>specified timeout expires.</font><p>
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<p><font size=-1>  &lt;dt&gt; &lt;img src="images/red-ball-small.gif" width=6 height=6 alt=" o "&gt;</font><p>
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<p><font size=-1>	&lt;a href="#wait(long, int)"&gt;&lt;b&gt;wait&lt;/b&gt;&lt;/a&gt;(long, int)</font><p>
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<p><font size=-1>  &lt;dd&gt; More accurate wait.</font><p>
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<p><font size=-1>&lt;/dl&gt;</font><p>
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<p><font size=-1>&lt;a name="constructors"&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;h2&gt;</font><p>
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<p><font size=-1>  &lt;img src="images/constructors.gif" width=231 height=38 alt="Constructors"&gt;</font><p>
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<p><font size=-1>&lt;/h2&gt;</font><p>
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<p><font size=-1>&lt;a name="Object"&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;a name="Object()"&gt;&lt;img src="images/yellow-ball.gif" width=12 height=12 alt="&#172;<br>o "&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;b&gt;Object&lt;/b&gt;</font><p>
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<p><font size=-1>&lt;pre&gt;</font><p>
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<p><font size=-1>  public Object()</font><p>
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<p><font size=-1>&lt;/pre&gt;</font><p>
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<p><font size=-1>&lt;a name="methods"&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;h2&gt;</font><p>
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<p><font size=-1>  &lt;img src="images/methods.gif" width=151 height=38 alt="Methods"&gt;</font><p>
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<p><font size=-1>&lt;/h2&gt;</font><p>
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<p><font size=-1>&lt;a name="getClass()"&gt;&lt;img src="images/red-ball.gif" width=12 height=12 alt=" &#172;<br>o "&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;a name="getClass"&gt;&lt;b&gt;getClass&lt;/b&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;pre&gt;</font><p>
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<p><font size=-1>  public final &lt;a href="java.lang.Class.html#_top_"&gt;Class&lt;/a&gt; getClass()</font><p>
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<p><font size=-1>&lt;/pre&gt;</font><p>
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<p><font size=-1>&lt;dl&gt;</font><p>
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<p><font size=-1>  &lt;dd&gt; Returns the Class of this Object. Java has a runtime</font><p>
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<p><font size=-1>representation for classes--a descriptor of type Class</font><p>
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<p><font size=-1>--which the method getClass() returns for any Object.</font><p>
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<p><font size=-1>&lt;/dl&gt;</font><p>
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<p><font size=-1>&lt;a name="hashCode()"&gt;&lt;img src="images/red-ball.gif" width=12 height=12 alt=" &#172;<br>o "&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;a name="hashCode"&gt;&lt;b&gt;hashCode&lt;/b&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;pre&gt;</font><p>
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<p><font size=-1>  public int hashCode()</font><p>
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<p><font size=-1>&lt;/pre&gt;</font><p>
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<p><font size=-1>&lt;dl&gt;</font><p>
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<p><font size=-1>  &lt;dd&gt; Returns a hashcode for this Object.</font><p>
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<p><font size=-1>Each Object in the Java system has a hashcode.</font><p>
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<p><font size=-1>The hashcode is a number that is usually different</font><p>
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<p><font size=-1>for different Objects. It is used when storing Objects</font><p>
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<p><font size=-1>in hashtables.</font><p>
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<p><font size=-1>Note: hashcodes can be negative as well as positive.</font><p>
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<p><font size=-1>  &lt;dl&gt;</font><p>
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<p><font size=-1>    &lt;dt&gt; &lt;b&gt;See Also:&lt;/b&gt;</font><p>
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<p><font size=-1>    &lt;dd&gt; &lt;a href="java.util.Hashtable.html#_top_"&gt;Hashtable&lt;/a&gt;</font><p>
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<p><font size=-1>  &lt;/dl&gt;</font><p>
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<p><font size=-1>&lt;/dl&gt;</font><p>
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<p><font size=-1>&lt;a name="equals(java.lang.Object)"&gt;&lt;img src="images/red-ball.gif" width=12 he&#172;<br>ight=12 alt=" o "&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;a name="equals"&gt;&lt;b&gt;equals&lt;/b&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;pre&gt;</font><p>
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<p><font size=-1>  public boolean equals(&lt;a href="#_top_"&gt;Object&lt;/a&gt; obj)</font><p>
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<p><font size=-1>&lt;/pre&gt;</font><p>
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<p><font size=-1>&lt;dl&gt;</font><p>
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<p><font size=-1>  &lt;dd&gt; Compares two Objects for equality.</font><p>
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<p><font size=-1>Returns a boolean that indicates whether this Object</font><p>
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<p><font size=-1>is equivalent to the specified Object. This method is</font><p>
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<p><font size=-1>used when an Object is stored in a hashtable.</font><p>
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<p><font size=-1>  &lt;dl&gt;</font><p>
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<p><font size=-1>    &lt;dt&gt; &lt;b&gt;Parameters:&lt;/b&gt;</font><p>
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<p><font size=-1>    &lt;dd&gt; obj - the Object to compare with</font><p>
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<p><font size=-1>    &lt;dt&gt; &lt;b&gt;Returns:&lt;/b&gt;</font><p>
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<p><font size=-1>    &lt;dd&gt; true if these Objects are equal;</font><p>
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<p><font size=-1>			false otherwise.</font><p>
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<p><font size=-1>    &lt;dt&gt; &lt;b&gt;See Also:&lt;/b&gt;</font><p>
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<p><font size=-1>    &lt;dd&gt; &lt;a href="java.util.Hashtable.html#_top_"&gt;Hashtable&lt;/a&gt;</font><p>
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<p><font size=-1>  &lt;/dl&gt;</font><p>
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<p><font size=-1>&lt;/dl&gt;</font><p>
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<p><font size=-1>&lt;a name="clone()"&gt;&lt;img src="images/red-ball.gif" width=12 height=12 alt=" o "&#172;<br>&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;a name="clone"&gt;&lt;b&gt;clone&lt;/b&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;pre&gt;</font><p>
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<p><font size=-1>  protected &lt;a href="#_top_"&gt;Object&lt;/a&gt; clone() throws &lt;a href="java.lang.Clo&#172;<br>neNotSupportedException.html#_top_"&gt;CloneNotSupportedException&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;/pre&gt;</font><p>
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<p><font size=-1>&lt;dl&gt;</font><p>
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<p><font size=-1>  &lt;dd&gt; Creates a clone of the object. A new instance is</font><p>
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<p><font size=-1>allocated and a bitwise clone of the current object</font><p>
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<p><font size=-1>is placed in the new object.</font><p>
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<p><font size=-1>  &lt;dl&gt;</font><p>
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<p><font size=-1>    &lt;dt&gt; &lt;b&gt;Returns:&lt;/b&gt;</font><p>
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<p><font size=-1>    &lt;dd&gt; a clone of this Object.</font><p>
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<p><font size=-1>    &lt;dt&gt; &lt;b&gt;Throws:&lt;/b&gt; &lt;a href="java.lang.OutOfMemoryError.html#_top_"&gt;OutOf&#172;<br>MemoryError&lt;/a&gt;</font><p>
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<p><font size=-1>    &lt;dd&gt; If there is not enough</font><p>
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<p><font size=-1>			memory.</font><p>
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<p><font size=-1>    &lt;dt&gt; &lt;b&gt;Throws:&lt;/b&gt; &lt;a href="java.lang.CloneNotSupportedException.html#_t&#172;<br>op_"&gt;CloneNotSupportedException&lt;/a&gt;</font><p>
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<p><font size=-1>    &lt;dd&gt; Object</font><p>
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<p><font size=-1>			explicitly does not want to be</font><p>
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<p><font size=-1>			cloned, or it does not support</font><p>
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<p><font size=-1>			the Cloneable interface.</font><p>
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<p><font size=-1>  &lt;/dl&gt;</font><p>
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<p><font size=-1>&lt;/dl&gt;</font><p>
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<p><font size=-1>&lt;a name="toString()"&gt;&lt;img src="images/red-ball.gif" width=12 height=12 alt=" &#172;<br>o "&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;a name="toString"&gt;&lt;b&gt;toString&lt;/b&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;pre&gt;</font><p>
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<p><font size=-1>  public &lt;a href="java.lang.String.html#_top_"&gt;String&lt;/a&gt; toString()</font><p>
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<p><font size=-1>&lt;/pre&gt;</font><p>
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<p><font size=-1>&lt;dl&gt;</font><p>
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<p><font size=-1>  &lt;dd&gt; Returns a String that represents this Object.</font><p>
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<p><font size=-1>It is recommended that all subclasses override</font><p>
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<p><font size=-1>this method.</font><p>
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<p><font size=-1>&lt;/dl&gt;</font><p>
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<p><font size=-1>&lt;a name="notify()"&gt;&lt;img src="images/red-ball.gif" width=12 height=12 alt=" o &#172;<br>"&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;a name="notify"&gt;&lt;b&gt;notify&lt;/b&gt;&lt;/a&gt;</font><p>
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<p><font size=-1>&lt;pre&gt;</font><p>
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<p><font size=-1>  public final void notify()</font><p>
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<p><font size=-1>&lt;/pre&gt;</font><p>
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<p><font size=-1>&lt;dl&gt;</font><p>
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<p><font size=-1>  &lt;dd&gt; Notifies a single waiting thread on a change in</font><p>
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<p><font size=-1>condition of another thread. The thread effecting</font><p>
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<p><font size=-1>the change notifies the waiting thread using notify().</font><p>
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<p><font size=-1>Threads that want to wait for a condition to change</font><p>
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<p><font size=-1>before proceeding can call wait(). &lt;p&gt;</font><p>
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<p><font size=-1>&lt;em&gt;The method notify() can be called only by the</font><p>
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<p><font size=-1>thread that is the owner of the current object's</font><p>
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<p><font size=-1>monitor lock.&lt;/em&gt;</font><p>
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<p><font size=-1>  &lt;dl&gt;</font><p>
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<p><font size=-1>    &lt;dt&gt; &lt;b&gt;Throws:&lt;/b&gt; &lt;a href="java.lang.IllegalMonitorStateException.html#&#172;<br>_top_"&gt;IllegalMonitorStateException&lt;/a&gt;</font><p>
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<p><font size=-1>    &lt;dd&gt; If the</font><p>
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<p><font size=-1>			current thread is not the owner</font><p>
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