What is the scope of variables in Java?

What is the scope of variables in Java?

In Java, the scope of a variable refers to the region of the program where the variable is accessible. There are different types of scopes: local, instance, and class scope.

Can you explain local scope with an example?

Sure! A variable declared inside a method is in local scope. For example:

void myMethod() {
    int localVar = 5; // localVar is only accessible within myMethod
}

What about instance variables?

Instance variables are declared in a class but outside any method. They are accessible to all methods in the class and have a scope that lasts as long as the object exists.

How does class scope work?

Class scope applies to static variables. These are shared among all instances of a class and can be accessed using the class name.