CHAR data type

Name:

Date:

Class:

Quick Questions

Shade in the A or B circle for each question.

1. Which value is a valid CHAR literal?

A 'x'

B "x"

2. Which value can be stored in a CHAR variable?

A '@'

B '@@'

3. Which statement about '7' is correct?

A '7' is an INTEGER, because 7 is a number

B '7' is a CHAR, because it is a single character in quotes

4. Which declaration creates a variable that holds one letter?

A DECLARE Grade : CHAR

B DECLARE Grade : LETTER

5. Which assignment is correct for Initial, a CHAR variable?

A Initial ← 'Mia'

B Initial ← 'M'

Match the Pairs

Draw a line connecting each item on the left to its match on the right.

Left column		Right column
1DECLARE Grade : CHAR		ADigit ← '7'
2Symbol ← '@'		BLetter ← 'x'
3A CHAR literal is exactly one character inside single quotes		CDeclares a variable named Grade that can store exactly one character
4A digit in single quotes is a character, not a number, so it is a CHAR value		DA CHAR holds exactly one character, but 'AB' has two. Use one character such as 'A' or change the type to STRING.
5Initial ← "B"		EDouble quotes were used. A CHAR value must be written in single quotes: 'B'.
6Letter ← 'AB'		FStores the symbol @ in a CHAR variable using single quotes

Definitions

CHAR

Fill in the Blanks

Complete each line of code by filling in the missing parts.

DECLARE Initial : ____

DECLARE Digit : CHAR Digit _ '7'

_______ Symbol : CHAR Symbol ← '@'

DECLARE Initial : CHAR Initial ← 'K' ______ Initial

DECLARE Symbol _ CHAR Symbol ← '#'

Spot the Error

Shade in the letter of the line that contains an error.

Question 1

A DECLARE grade : CHAR

B DECLARE name : STRING

C grade ← 'BC'

D OUTPUT grade

Question 2

A DECLARE symbol : CHAR

B symbol ← "@"

C OUTPUT symbol

Question 3

A DECLARE digit : INTEGER

B digit ← '7'

C OUTPUT digit

Question 4

A DECLARE letter : CHAR

B letter ← x

C OUTPUT letter

Question 5

A DECLARE code : CHAR

B code ← 7

C OUTPUT code

Answer Key

CHAR data type

Section A: Quick Questions

A — 'x'

A — '@'

B — '7' is a CHAR, because it is a single character in quotes

A — DECLARE Grade : CHAR

B — Initial ← 'M'

Section B: Match the Pairs

DECLARE Grade : CHAR → Declares a variable named Grade that can store exactly one character

Symbol ← '@' → Stores the symbol @ in a CHAR variable using single quotes

A CHAR literal is exactly one character inside single quotes → Letter ← 'x'

A digit in single quotes is a character, not a number, so it is a CHAR value → Digit ← '7'

Initial ← "B" → Double quotes were used. A CHAR value must be written in single quotes: 'B'.

Letter ← 'AB' → A CHAR holds exactly one character, but 'AB' has two. Use one character such as 'A' or change the type to STRING.

Section C: Definitions

CHAR — The data type for exactly one character (a letter, digit or symbol), written in single quotes, such as 'x', '7' or '@'. Even '7' is a character, not a number.

Section D: Fill in the Blanks

DECLARE Initial : CHAR

DECLARE Digit : CHAR
Digit ← '7'

DECLARE Symbol : CHAR
Symbol ← '@'

DECLARE Initial : CHAR
Initial ← 'K'
OUTPUT Initial

DECLARE Symbol : CHAR
Symbol ← '#'

Section E: Spot the Error

C — A CHAR holds exactly one character. 'BC' is two characters, so it would need to be a STRING. It should be grade ← 'B'.

B — CHAR values are written in single quotes, not double quotes. It should be symbol ← '@'.

A — '7' is a character, not a number, so the variable must be declared as CHAR. It should be DECLARE digit : CHAR.

B — A CHAR literal needs single quotes. Without them, x looks like a variable name. It should be letter ← 'x'.

B — 7 without quotes is an INTEGER. A CHAR must hold a character, so the digit needs single quotes: code ← '7'.