10 Questions
What is the purpose of a constructor in Java?
To create and initialize objects
Why are the parentheses empty in a constructor declaration?
To indicate that the constructor takes no arguments
What is the main difference between static variables and instance variables in Java?
Static variables belong to the class as a whole, while instance variables belong to individual objects
Which of the following best describes the role of a default constructor?
It creates and initializes objects without any parameters
Can a constructor have a return type in Java?
No, constructors cannot have a return type in Java
Which type of variable is shared by all objects of its class?
Static variable
How should static variables that are not constants be normally accessed or changed?
Through accessor and mutator methods
What keyword is used in the heading of a method definition to denote it as static?
static
When calling a static method, what should you use instead of the object name?
Class name
Can a static method reference an instance variable of its class?
No, unless it has an object of the class
Test your knowledge on static variables and methods in programming. Learn about the characteristics and usage of static variables and methods, and how they differ from instance variables and methods.
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