5 Questions
Which of the following statements about static members is correct?
Static members can be accessed before any objects of the class are created.
Why is the main() method declared as static in Java?
It must be called before any objects of the class exist.
What is the main characteristic of a static method in Java?
It belongs to the class and not to the object.
Why can a static method not use 'this' to refer to instance variables?
It does not need an object to be called.
Why is a static member inherited but not overridden?
Override depends on objects, while static methods do not depend on objects.
Study Notes
Static Members in Java
- Static members belong to a class, not an instance of the class.
- The main method is declared as static in Java so that it can be invoked by the Java Virtual Machine (JVM) without creating an instance of the class.
Static Methods
- A static method in Java has the main characteristic of being bound to a class rather than an instance of the class.
- Static methods can be invoked without creating an instance of the class.
'this' Keyword in Static Methods
- A static method in Java cannot use 'this' to refer to instance variables because 'this' refers to the instance of the class, and static methods are not associated with an instance.
Static Members Inheritance
- A static member is inherited by a subclass but not overridden, because it belongs to the class itself, not to an instance of the class.
Understanding Static Members in Java Quiz: Test your knowledge of static members in Java, including static methods and variables, inheritance, and the rules for accessing static members before object creation.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
