Java ThreadGroup list() method

Last Updated : 17 Mar 2025

The list() method of ThreadGroup class is used to display the information about the thread group. It is useful only for debugging.

Syntax

Return

This method does not return any value.

Example

Output:

Thread-1 starts
Thread-2 starts

Listing parentThreadGroup: Parent thread:
java.lang.ThreadGroup[name=Parent thread,maxpri=10]
    Thread[Thread-1,5,Parent thread]
    Thread[Thread-2,5,Parent thread]
    java.lang.ThreadGroup[name=Child thread,maxpri=10]
Thread-1 completed executing
Thread-2 completed executing