Java Application Programming Unit 4 Quiz

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What is the primary benefit of using multithreading in a Java application?

To improve responsiveness and prevent freezing of the application (correct)
To reduce the communication between processes
To increase the complexity of the program
To increase the overall system resources consumed

What is the default thread created by the JVM when a Java application is started?

Worker thread
Main thread (correct)
Child thread
Daemon thread

What is the parent class of all Java threads?

java.lang.Process
java.lang.Thread (correct)
java.lang.Object
java.lang.Runnable

What happens to other threads if an exception occurs in a single thread?

Other threads are not affected (C) Signup and view all the answers

What is the purpose of thread synchronization in Java?

To enable better communication between processes (B) Signup and view all the answers

What is the state of a thread when it is first created?

NEW (B) Signup and view all the answers

What is the purpose of the join() method in a thread?

To ensure that one thread does not start running until another thread ends (A) Signup and view all the answers

What is the return type of the getId() method in the Thread class?

long (D) Signup and view all the answers

What is the purpose of the yield() method in a thread?

To give up the current use of a processor by the current thread (A) Signup and view all the answers

What is the functionality of the run() method in a thread?

To call the run method of the Runnable object if it was constructed using a separate Runnable object (B) Signup and view all the answers

What is the purpose of the sleep() method in a thread?

To pause the execution of a thread for a specified time (A) Signup and view all the answers

What is the return type of the getName() method in the Thread class?

String (C) Signup and view all the answers

What is a thread in Java?

A sequential flow of control within a program (D) Signup and view all the answers

How can you create a thread in Java by implementing functionality without extending the Thread class?

By anonymous implementation of the Runnable interface (D) Signup and view all the answers

What is the purpose of using multithreading in Java applications?

To enable software to do multiple tasks concurrently for improved efficiency (B) Signup and view all the answers

In Java, what is the main advantage of using the Runnable interface over extending the Thread class in thread implementation?

Promotes better object-oriented design and avoids the single inheritance issue (B) Signup and view all the answers

Which of the following statements about the main thread in Java is accurate?

The main thread is the entry point of every Java program and is created by the JVM (D) Signup and view all the answers

Which of the following accurately describes the relationship between Thread Class and Runnable Interface in Java?

Runnable Interface is preferred for thread implementation to promote better object-oriented design (C) Signup and view all the answers