2.2 Programming - Constructs

In programming what is a variable?

• A named value that can change, e.g. score
• A fixed value that never changes
• A loop
• A descision

length is an example of a...

• Argument
• Parameter
• Variable
• Procedure call

400 is the...

• Parameter
• Argument
• Name
• Variable

The drawSquare subprogram is an example of a...

• Function
• Procedure

A function...

• Never has parameters
• Always returns a value
• Must has parameters
• Does not return a value

The following is not true about variable names...

• they must be descriptive
• they must be in capital letters
• they can't start with numbers or contain spaces
• they point to memory locations

Quotation marks around a variable's identifier imply...

• it is an integer
• it is a string
• it is a Boolean
• it is a real

The multiplication table is best displayed using this data type...

• Boolean
• character
• integer
• real

This variable type can only have True or False values...

• Boolean
• integer
• string
• character

Casting refers to...

• Boolean algebra
• Rounding of reals
• converting between variable data types
• printing out of the program's results