Test 1 (class,object,constructor,this)

What is a class in Java?

• A variable
• A method
• A blueprint of objects
• An object

What is an object in Java?

• A variable
• An instance of a class
• A method
• A loop

Which operator is used to create an object in Java?

• new
• create
• alloc
• malloc

Which of these is a correct way to create an object?

• Student s = Student();
• Student s = new Student;
• Student s = new Student();
• Student s();

Can a class have multiple objects?

• No
• Yes
• Only one
• Depends on JVM

What does the `main` method represent?

• A class
• An object
• A constructor
• An entry point of the program

What is the access modifier commonly used for class variables?

• public
• private
• protected
• all of the above

Can you have a class within a class in Java?

• No
• Yes, inner class
• Only abstract class
• Only static class

What is the default access modifier for a class?

• public
• private
• package-private (no modifier)
• protected

Which of the following is not an object-oriented concept?

• Encapsulation
• Polymorphism
• Compilation
• Inheritance