Comp1-variable roles.

Question 1

What is a fixed value variable?

Answer 1

The role of a variable is a fixed value if its value is not changed while the program is running after initialization.
(its changed at the start)

Question 2

What is a stepper variable?

Answer 2

Stepper goes through a succession of values in some systematic way.

Question 3

What is a most-recent holder?

Answer 3

A variable is a most-recent holder if its value is the latest gone through value of a certain group or simply the latest input value.

Question 4

What is a most wanted holder?

Answer 4

The value of a most-wanted holder is the best or otherwise the most-wanted value out of the values gone through so far. could be the smallest number or biggest , the best is defined by the programs needs.

Question 5

What is a gatherer variable?

Answer 5

The value of a gatherer is to accumulate all the values gone through so far.

Question 6

what is a follower variable?

Answer 6

A follower always gets the old value of another known variable as its new value.

Question 7

What is a transformation variable?

Answer 7

A variable is a transformation variable if it always gets its new value from a fixed calculation of values of other variables.

Question 8

What is a temporary variable?

Answer 8

A variable is a temporary if its value is always needed only for a very short period.

Question 9

Whats the difference between a value parameter and a reference parameter.

Answer 9

Value parameters are used to pass values into a subroutine. Reference parameters are variables use to pass information in and out of a subroutine. They enable the subroutine to change the values of the variables in the calling block.

Question 10

Why use local variables instead of global variables?

Answer 10

Easier reuse of routines in other programs;
Routine can be included in a library;
Helps to make the program code more understandable; routine is independent of the rest of the program;
(Global variables use memory while a program is running) reduces possibility of undesirable side effects;
Using global variables makes a program harder to debug;

Question 11

Why can local and global variables have the same identifier?

Answer 11

They are stored in different memory locations

the local takes priority from inside the subroutine.