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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 defines a group of threads and allows operations on the group as a whole. A ThreadGroup may contain Thread objects, as well as "child" ThreadGroup objects. All ThreadGroup objects are created as children of some other ThreadGroup, and thus there is a parent/child hierarchy of ThreadGroup objects.
Some programs may find it convenient to define their own ThreadGroup, but generally thread groups are only used by system-level applications.
public class ThreadGroup extends Object {
// Public Constructors
public ThreadGroup(String name);
public ThreadGroup(ThreadGroup parent, String name);
// Public Instance Methods
public int activeCount();
public int activeGroupCount();
1.1public boolean allowThreadSuspension(boolean b);
public final void checkAccess();
public final void destroy();
public int enumerate(Thread[] list);
public int enumerate(Thread[] list, boolean recurse);
public int enumerate(ThreadGroup[] list);
public int enumerate(ThreadGroup[] list, boolean recurse);
public final int getMaxPriority();
public final String getName();
public final ThreadGroup getParent();
public final boolean isDaemon();
1.1public synchronized boolean isDestroyed();
public void list();
public final boolean parentOf(ThreadGroup g);
public final void resume();
public final void setDaemon(boolean daemon);
public final void setMaxPriority(int pri);
public final void stop();
public final void suspend();
public String toString(); // Overrides Object
public void uncaughtException(Thread t, Throwable e);
}
SecurityManager.checkAccess(), Thread(), ThreadGroup(), ThreadGroup.enumerate(), ThreadGroup.parentOf()
SecurityManager.getThreadGroup(), Thread.getThreadGroup(), ThreadGroup.getParent()
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| java.lang.ThreadDeath (JDK 1.0) |  |
java.lang.Throwable (JDK 1.0) |
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