Computer Languages
Variables store data for the program to work
with. A variable is a name that represents a
piece of data with many possible values; it can be used in the entire
program (Global variable)
or just in one part (Local variable). |
 |
For example, if a program has a variable called 'aboveNinety' which is to be used as a counter to evaluate a student's overall performance in examinations, while the variables 'FrenchScore', 'RussianScore' and 'SpanishScore' represent the values of their results in the individual examinations, then the program might read as follows.
| Program | Explanation |
| aboveNinety
:= 0; | this sets the initial value of the counter to zero |
if (FrenchScore > 90) then
aboveNinety :=
aboveNinety + 1; | this changes the counter to 1 |
if (RussianScore > 90) then
aboveNinety := aboveNinety + 1; | from 1 to 2 |
if (SpanishScore > 90) then
aboveNinety :=
aboveNinety + 1; | from 2 to 3 |
| print aboveNinety , "Language(s)
above 90% "; | prints "3 Language(s) above 90%" |
|
|
|
