What are the different types of variable scope in Java?

What are the different types of variable scope in Java?

In Java, variable scope refers to the visibility of variables. The main types are local, instance, and class scope.

Can you explain local variable scope with an example?

Sure! A local variable is declared within a method and can only be accessed within that method. For example:

void myMethod() {
    int localVar = 5; // local variable
    System.out.println(localVar);
}

What about instance variables?

Instance variables are declared in a class but outside any method. They can be accessed by all methods in the class. For example:

class MyClass {
    int instanceVar; // instance variable
    void myMethod() {
        instanceVar = 10;
    }
}

And class variables?

Class variables, also known as static variables, are declared with the static keyword. They are shared among all instances of a class. For example:

class MyClass {
    static int classVar; // class variable
}