Scope of Variable
Scope of Variables The Accessibility of the variables in a program. These are classified into 3 types: Instance variables Class variables Local variables Instance Variables These variables are available until there is a memory allocated to the instance of the class. Example: class MyClass{ public MyClass(){ message="Welcome"; } String message; } public class Main{ public static void main(String gdv[]){ MyClass d =new MyClass(); System.out.print(d.message+" "+new MyClass().message); } } OUTPUT: Welcome Welcome Class Variables These variables are available until the end of the entire program execution. These can be accessed anywhere throughout the program. Example: class MyClass{ static String message="Hello"; public static void main(String []gdv){ System.out.print(message); } } OUTPUT: Hello Local Variables These variables are only available until the method is executed. After the method finishes executes then these variables are unavailable. These varia...