Basic operations in programming languages

Question 1

What is rounding?

Answer 1

Reducing the number of digits used to represent a number while maintaining a value that is approximately equivalent

Question 2

What is truncating?

Answer 2

The process of cutting off a number after a certain number of characters or decimal places

Question 3

What is random number generation?

Answer 3

A function that produces a completely random number

Question 4

What is a pseudorandom number generator?

Answer 4

A function that produces a random number that is not 100% number

Question 5

What is a relational operator?

Answer 5

One that returns a comparison of two values, e.g. whether they are equal

Question 6

What is a Boolean operator?

Answer 6

One that takes in one or two Boolean values and returns a single Boolean value depending on their states

Question 7

What does the AND operator return?

Answer 7

True if both inputs are true, false otherwise

Question 8

What does the OR operator return?

Answer 8

True if at least one of the inputs are true, false otherwise

Question 9

What does the NOT operator return?

Answer 9

True if the input is false, false otherwise

Question 10

What does the XOR operator return?

Answer 10

True if precisely one of the inputs is true, false otherwise

Question 11

Give five examples of string handling functions

Answer 11

• Length
• Position
• Substring
• Concatenation
• String to integer conversion