The VB language is rich in Variable declaration levels. Clearly differentiate between thefollowinga. Local Variables and Member Variables………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………b. Shared Variables and Instance Variables………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………c. Module Scope and Procedure Scope

a. Local Variables and Member Variables:

Local Variables:

• Local variables are declared within a specific block of code, such as a function or a loop.
• They are only accessible within the block of code in which they are declared.
• Local variables are temporary and their values are lost once the block of code is executed.
• They are typically used to store intermediate values or perform calculations within a specific scope.

Member Variables:

• Member variables, also known as instance variables, are declared within a class but outside of any specific method or function.
• They are accessible to all methods within the class.
• Member variables hold data that is associated with an instance of the class and their values persist as long as the instance exists.
• They are typically used to store data that needs to be shared across multiple methods within a class.

b. Shared Variables and Instance Variables:

Shared Variables:

• Shared variables, also known as static variables, are declared within a class and are shared among all instances of that class.
• They are accessible to all methods within the class and can be accessed without creating an instance of the class.
• Shared variables hold data that is common to all instances of the class.
• Their values persist throughout the lifetime of the program.

Instance Variables:

• Instance variables are declared within a class and are associated with a specific instance of that class.
• Each instance of the class has its own copy of instance variables.
• Instance variables are accessible to all methods within the class but are not shared among different instances of the class.
• Their values persist as long as the instance exists.

c. Module Scope and Procedure Scope:

Module Scope:

• Module scope refers to variables that are declared at the module level, outside of any specific procedure or function.
• Module-level variables are accessible to all procedures and functions within the module.
• Their values persist as long as the module is loaded in memory.
• Module-level variables are typically used to store data that needs to be shared across multiple procedures or functions within the module.

Procedure Scope:

• Procedure scope refers to variables that are declared within a specific procedure or function.
• Procedure-level variables are only accessible within the procedure or function in which they are declared.
• Their values are lost once the procedure or function is executed.
• Procedure-level variables are typically used to store temporary data or perform calculations within a specific procedure or function.