Threads: ThreadGroup

• ThreadGroup class, getThreadGroup()
• activeCount(): no of threads in the group
• activeGroupCount(): no of active groups in the group
• checkAccess(): check current thread's permission to modify the group
• getMaxPriority(): maximum priority of the group
• setMaxPriority(): set group priority to max
• getName(): name of the group
• getParent(): parent of the group
• parentOf(): check thread group ancestor
• interrupt(): interrupt all threads in the group
• destroy(): destroy the group and all its subgroups
• isDestroyed(): check the group is destroyed
• isDaemon(): check group is a daemon
• setDaemon(): set the daemon status of the group
• enumerate(): copy all active threads in the group and its subgroups in an array
• list(): thread group info