Java Programming Quiz

What is the primary feature of Java that allows code to run on any device that supports the JVM?

• Write Once, Run Anywhere

• Compile Once, Run Anywhere

• Write Once, Compile Anywhere

• Run Anywhere, Write Once

Which of the following is NOT a core principle of Object-Oriented Programming (OOP) in Java?

• Inheritance

• Polymorphism

• Encapsulation

• Compilation

What is the output of the following Java code: System.out.println("Hello World");?

• Hello World

• Hello

• World

• Error

Which Java framework is commonly used for building enterprise applications?

• Ruby on Rails

• Flask

• Django

• Spring

What type of method allows you to pass a variable number of arguments in Java?

• Varargs

• Abstract Method

• Instance Method

• Static Method

Which of the following is a collection interface in Java?

• Character

• Integer

• String

• List

What keyword is used to handle exceptions in Java?

• try

• catch

• All of the above

• throw

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

• Thread Class

• Both A and B

• Executor Service

• Runnable Interface

What is the purpose of the 'final' keyword in Java?

• All of the above

• To declare constants

• To prevent method overriding

• To prevent inheritance

Which of the following is a valid way to declare an array in Java?

• int arr[] = new int[5];

• int[] arr = new int[5];

• int arr[] = new int(5);

• int arr = new int[5];