Complete Java SE 8 Developer Bootcamp - Static Methods

The video tutorial explains static methods in Java, highlighting their definition, creation, and usage. It differentiates between static (class) methods and instance methods, emphasizing that static methods belong to the class itself and do not have access to instance variables or methods. The tutorial outlines the rules for using static methods and discusses their primary purposes, such as accessing class variable data and providing functionality without needing an object instance. Examples, including mathematical operations, illustrate when static methods are appropriate.

What is another term used for static methods?

• Class method

• Variable method

• Instance method

• Object method

How should you correctly call an instance method?

• Using an instance variable

• Using a static variable

• Using a global variable

• Using the class name

Why can't static methods access instance variables?

• They are not initialized

• They belong to the class, not an instance

• They are protected

• They are private

What is a primary purpose of static methods?

• To modify instance variables

• To access class variable data

• To create new objects

• To delete objects

When is it appropriate to use a static method?

• When deleting an object

• When creating multiple instances

• When providing functionality without needing an object

• When accessing instance data

What is a potential downside of using only static methods in a class?

• It makes the code unreadable

• It may not adhere to object-oriented principles

• It can lead to memory leaks

• It can cause runtime errors

What is a common use case for static methods in programming?

• Handling user input

• Rendering graphics

• Performing mathematical calculations

• Managing database connections