FontysVenlo - PRC2 - W11 - Concurrency

What is the primary purpose of the synchronized keyword in Java?

• To improve the speed of code execution.

• To enable multiple threads to access a method simultaneously.

• To restrict access to a method or block of code to one thread at a time.

• To handle exceptions in multithreaded applications.

What does the volatile keyword in Java ensure?

• That a variable is stored in cache for faster access.

• • That a variable's value is always read from and written to main memory.

• That a variable is immutable.

• That a variable is shared among multiple threads without synchronization.

Which of the following methods is used to make a thread pause for a specified amount of time?

• wait( )

• • notify( )

• • sleep( )

• join( )

What does the notifyAll() method do in Java concurrency?

• It wakes up a single thread that is waiting on the object's monitor.

• It wakes up all threads that are waiting on the object's monitor.

• It puts all threads to sleep until notified.

• It notifies the main thread to start execution.

Which of the following methods is used to start a thread in Java?

• run( )

• start( )

• begin( )

• execute( )