UCASE: converting to upper case

Name:

Date:

Class:

Quick Questions

Shade in the A or B circle for each question.

1. What does UCASE("Happy") return?

A "Happy"

B "HAPPY"

2. Which line stores the upper case version of Name in a variable called Shout?

A Shout ← UCASE(Name)

B UCASE(Name) → Shout

3. Name is "zoe". After the line X ← UCASE(Name) what is the value of Name?

A "zoe"

B "ZOE"

4. Which line changes the variable Name itself to upper case?

A Name ← UCASE(Name)

B UCASE(Name)

5. Letter is a CHAR holding 'q'. Can UCASE be used on it?

A No, UCASE only works on STRING

B Yes, UCASE('q') returns 'Q'

Match the Pairs

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

Left column		Right column
1UCASE("Happy")		AIF UCASE(Answer) = "YES" THEN
2Initial ← UCASE('q')		BStores the CHAR 'Q' in Initial because UCASE also works on a single CHAR
3UCASE does not change the original variable unless you assign the result back to it		CName ← UCASE(Name)
4UCASE makes comparing text fair, because both sides are converted to the same case		DIf the user types yes or Yes, the comparison fails because the case differs. Use UCASE(Answer) = "YES" to compare fairly.
5UCASE(Name) OUTPUT Name		EThe result of UCASE is thrown away, so Name is unchanged and the output is still the original text. Assign it: Name ← UCASE(Name)
6IF Answer = "YES" THEN		FReturns the text "HAPPY" with every letter changed to upper case

Definitions

UCASE(x)

Fill in the Blanks

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

OUTPUT _____("Happy")

Word _ UCASE(Word)

DECLARE Letter : CHAR Letter ← 'q' OUTPUT UCASE(______)

IF _____(Answer) = "YES" THEN OUTPUT "Correct" ENDIF

Word ← "Happy" Big ← UCASE(Word) OUTPUT ____

Spot the Error

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

Question 1

A DECLARE word : STRING

B word ← "Happy"

C OUTPUT UPPER(word)

Question 2

A DECLARE name : STRING

B INPUT name

C name ← UCASE(name)

D OUTPUT "name"

Question 3

A DECLARE letter : INTEGER

B letter ← 'q'

C OUTPUT UCASE(letter)

Question 4

A DECLARE reply STRING

B INPUT reply

C IF UCASE(reply) = "YES" THEN

D OUTPUT "Agreed"

E ENDIF

Question 5

A DECLARE tag : STRING

B tag ← "go"

C OUTPUT tag

D OUTPUT UCASE tag

Answer Key

UCASE: converting to upper case

Section A: Quick Questions

B — "HAPPY"

A — Shout ← UCASE(Name)

A — "zoe"

A — Name ← UCASE(Name)

B — Yes, UCASE('q') returns 'Q'

Section B: Match the Pairs

UCASE("Happy") → Returns the text "HAPPY" with every letter changed to upper case

Initial ← UCASE('q') → Stores the CHAR 'Q' in Initial because UCASE also works on a single CHAR

UCASE does not change the original variable unless you assign the result back to it → Name ← UCASE(Name)

UCASE makes comparing text fair, because both sides are converted to the same case → IF UCASE(Answer) = "YES" THEN

UCASE(Name) OUTPUT Name → The result of UCASE is thrown away, so Name is unchanged and the output is still the original text. Assign it: Name ← UCASE(Name)

IF Answer = "YES" THEN → If the user types yes or Yes, the comparison fails because the case differs. Use UCASE(Answer) = "YES" to compare fairly.

Section C: Definitions

UCASE(x) — UCASE(x) returns the string or CHAR x with every letter in upper case. UCASE("Happy") returns "HAPPY". The original variable only changes if you assign the result.

Section D: Fill in the Blanks

OUTPUT UCASE("Happy")

Word ← UCASE(Word)

DECLARE Letter : CHAR
Letter ← 'q'
OUTPUT UCASE(Letter)

IF UCASE(Answer) = "YES" THEN
  OUTPUT "Correct"
ENDIF

Word ← "Happy"
Big ← UCASE(Word)
OUTPUT Word

Section E: Spot the Error

C — The Cambridge pseudocode function is UCASE, not UPPER. The line should be OUTPUT UCASE(word).

D — The quotes make this the text "name" instead of the variable. It should be OUTPUT name so the upper case value is shown.

A — The variable stores a single character, so it must be declared as CHAR. An INTEGER cannot hold 'q'.

A — A DECLARE statement needs a colon between the identifier and the data type. It should be DECLARE reply : STRING.

D — UCASE is a function, so its argument must be inside brackets. It should be OUTPUT UCASE(tag).