Help
Options
Term
Initialisation
click to flip
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't know
Term
Assignment
Remaining cards (5)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
F452 Computing
3 Types of Statement
| Term | Definition |
|---|---|
| Initialisation | Setting starting values of variables before the variable is used in an expression as the variable may have previous values from a previous run. E.g. Totals & Counts must be set to zero. |
| Assignment | Sets the value of a variable. Can be written X = 0 or X 0 or X := 0. |
| Assignment/Comparison | Notice the difference between the = in X = 5 (assignment operator) and IF X = 5 (comparison operator). |
| Comparing Strings | Comparison of strings uses their character codes. Compares first characters code in the two strings if they are the same then the next character in the two strings is compared etc. Upper and lower case letters have different character codes. |
| Complex Boolean expressions | IF Colour = “Red” OR “Black” is an error (although not syntactically). It should be IF Colour = “Red” OR Colour = “Black”. |
| Operator Precedence | The default order in which operations in an expression are carried out. E.g. Division or multiplication done first and subtraction is done last. |
Created by:
Chelsea2760
Popular Computers sets