Programming Techniques

The following is not true about variable names:

• They must be descriptive
• They must be in capital letters
• They cannot start with numbers or contain spaces
• They point to memory locations

Which of the following is a valid keyword for output?

• MODIFY
• EDIT
• DISPLAY
• INPUT

Consider the following expression: a = b. This means:

• a will always be equal to b
• b is being renamed into a
• The value of memory location a gets copied into memory location b
• The value of memory location b gets copied into memory location a

Which of the following is not a valid data type?

• Real
• String
• Character
• Fraction

Whole numbers are stored using this data type:

• Boolean
• Character
• Integer
• Real

This variable type can only have the values TRUE or FALSE:

• Boolean
• Character
• Integer
• Real

Casting refers to

• Boolean algebra
• Rounding of reals
• Converting data to a different type
• Printing out of the program’s results

The operator finds the remainder after integer division:

• Integer division
• MOD
• Division
• Subtraction

The statement A OR B implies A and B are:

• Integers
• Strings
• Booleans
• Characters

This function calculates the length of a string or array.

• LEN()
• UBOUND()
• INDEX()
• COUNT()