what are the variables in java and scope of the variables in java

Question

Accepted Answer

Variables in Java are containers that store data values. Their scope determines where they can be accessed.

Java has three types of variables: local, instance, and static
Local variables are declared within a method and can only be accessed within that method
Instance variables are declared within a class but outside of any method and can be accessed by any method within that class
Static variables are declared with the static keyword and can be accessed by any method within that class or even outside of the class
The scope of a variable is determined by where it is declared and can be limited to a block of code or extend to the entire class
Example: int x = 5; is a declaration of a local variable within a method
Example: public int age; is a declaration of an instance variable within a class
Example: public static int count; is a declaration of a static variable within a class

Top Intellect Design Arena System Trainee interview questions & answers