Programming Fundamentals Flashcards
1
Q
What are the 3 constructs
A
sequence, selection and iteration
2
Q
What is difference between local and global variables
A
Local: declared with a specific subroutine
Global: can be used at any point within the whole program
3
Q
What are two advantages of using local variables
A
Saves memory when it is needed
Easier to debug local variables
4
Q
What are two advantages of using global variables
A
Makes maintenance easier
Can be used
5
Q
What is a constant
A
Data that does not change in value
6
Q
List the 5 data types and give examples for each
A
Character: a single character
String: a sequence of characters
Integer: a whole number
Real: a decimal
Boolean: only has two possible values
7
Q
What is casting
A
Converts the value of a variable from one data type to another
