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Chapter 25 The java.lang Package |
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Chapter 25 The java.lang Package |
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This class encapsulates all the information about a single thread of control running on the Java interpreter. To create a thread, you must pass a Runnable object (i.e., an object that implements the Runnable interface by defining a run() method) to the Thread constructor, or you must subclass Thread so that it defines its own run() method.
The run() method of the Thread or of the specified Runnable object is the "body" of the thread. It begins executing when the start() method of the Thread object is called. The thread runs until the run() method returns or until the stop() method of its Thread object is called. The static methods of this class operate on the currently running thread. The instance methods may be called from one thread to operate on a different thread.
start() starts a thread running. stop() stops it by throwing a ThreadDeath error. suspend() temporarily halts a thread. resume() allows it to resume. sleep() makes the current thread stop for a specified amount of time. yield() makes the current thread give up control to any other threads of equal priority that are waiting to run. join() waits for a thread to die. interrupt() wakes up a waiting or sleeping thread (with an InterruptedException) or sets an "interrupted" flag on a non-sleeping thread. A thread can test its own "interrupted" flag with interrupted() or can test the flag of another thread with isInterrupted(). The Object wait() method makes the current thread block until the object's notify() method is called by another thread.
public class Thread extends Object implements Runnable {
// Public Constructors
public Thread();
public Thread(Runnable target);
public Thread(ThreadGroup group, Runnable target);
public Thread(String name);
public Thread(ThreadGroup group, String name);
public Thread(Runnable target, String name);
public Thread(ThreadGroup group, Runnable target, String name);
// Constants
public static final int MAX_PRIORITY;
public static final int MIN_PRIORITY;
public static final int NORM_PRIORITY;
// Class Methods
public static int activeCount();
public static native Thread currentThread();
public static void dumpStack();
public static int enumerate(Thread[] tarray);
public static boolean interrupted();
public static native void sleep(long millis) throws InterruptedException;
public static void sleep(long millis, int nanos) throws InterruptedException;
public static native void yield();
// Public Instance Methods
public void checkAccess();
public native int countStackFrames();
public void destroy();
public final String getName();
public final int getPriority();
public final ThreadGroup getThreadGroup();
public void interrupt();
public final native boolean isAlive();
public final boolean isDaemon();
public boolean isInterrupted();
public final synchronized void join(long millis) throws InterruptedException;
public final synchronized void join(long millis, int nanos) throws InterruptedException;
public final void join() throws InterruptedException;
public final void resume();
public void run(); // From Runnable
public final void setDaemon(boolean on);
public final void setName(String name);
public final void setPriority(int newPriority);
public synchronized native void start();
public final void stop();
public final synchronized void stop(Throwable o);
public final void suspend();
public String toString(); // Overrides Object
}
SecurityManager.checkAccess(), Thread.enumerate(), ThreadGroup.enumerate(), ThreadGroup.uncaughtException()
Thread.currentThread()
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| java.lang.System (JDK 1.0) |  |
java.lang.ThreadDeath (JDK 1.0) |
