Variables:static, global, local

Variables:static, global, local

1. when program is run, static variables are stored in a location in memory and have a lifespan that klast while the program is running.

   • Eg. if you assign the number 2.14 to a static variable will still contain 2.14 whenever you run the sub procedure until the whole program stops running

2. When a dynamic variable is defined, it is assinged a new loaction

3. Local

   • defined inside na sub procedure and is only accesible from within that sub procedure. This is known as scope
   • Advantage - much easier to tack changes to a variable and reason for the changes when it is only used within a sub procedure + can prevent variable from being over wriiten by something else in yopur program

4. global

   • Wideer scope
   • defined globally and so is accesible from anywherte within a program
   • advanatge - sometimes it can be the most efficient way of ensuring that a piece of sata is accesible to all sub procedures