Which is the root for all thread groups in Java?a.None of theseb.systemc.maind.Both system and main

What is the function of the ThreadGroup class in Java?  Question 1Answera.Groups multiple threads into a single thread.  b.Sets the priority of the thread group.  c.Manages and organizes multiple threads.  d.Pauses all threads in the group.

what is thread in java

What is the name of the thread in the following Java Program?class multithreaded_programing{public static void main(String args[]) { Thread t = Thread.currentThread(); System.out.println(t); }}mainThreadSystemNone of the mentioned

Select the correct answerIn the following java program, what is the NAME of the thread?class Nptel extends Thread{ public static void main(String args[]) { Thread t = Thread.currentThread(); System.out.println(t); }}OptionsmainthreadsystemNone of these

Which method is used to start the execution of a thread in Java?  Question 1Answera. run()b. begin()c. start()d. launch()