Java Quiz 1

What is an object in Java?

• A. A blueprint for creating classes

• B. A real-world entity with state and behavior

• C. A collection of methods

• D. A package of related classes

What is a class in Java?

• A. An instance of an object

• B. A blueprint from which objects are created

• C. A type of variable

• D. A method that performs a specific task

Which keyword is used to define a class in Java?

• A. new

• B. this

• C. class

• D. object

Which of the following best describes a method in Java?

• A. A variable that stores data

• B. A function defined inside a class

• C. A reference to an object

• D. A type of primitive data

What is the correct signature of the main() method in Java?

• A. public void main(String[] args)

• B. public static void main(String[] args)

• C. private static void main(String[] args)

• D. public static int main(String[] args)

What is the role of the main() method in a Java program?

• A. To define the blueprint of an object

• B. To store object references

• C. To serve as the entry point of the program

• D. To manage package imports

What is a redundant import in Java?

• A. An import statement that is never used in the code

• B. An import statement that is required by the JVM

• C. An import statement that imports the same class twice

• D. An import statement that imports classes from a different package

Which keyword is used to create a new object in Java?

• A. this

• B. new

• C. create

• D. object

Given the class 'Car', how would you create an object of this class?

• A. Car myCar = new Car();

• B. Car myCar = Car();

• C. Car myCar = create Car();

• D. Car myCar = new Car;

What does the 'this' keyword refer to in Java?

• A. The current method

• B. The current class

• C. The current object

• D. The parent class