Defining a procedure with no parameters

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Quick Questions

Shade in the A or B circle for each question.

1. Which line correctly starts a procedure called ShowMenu that has no parameters?

A PROCEDURE ShowMenu()

B PROCEDURE ShowMenu

2. Which keyword closes a procedure definition?

A ENDPROCEDURE

B END

3. Which procedure is written correctly?

A PROCEDURE SayHello OUTPUT "Hello" ENDPROCEDURE

B PROCEDURE SayHello OUTPUT "Hello"

4. Where should the statements inside a procedure go?

A Indented, between the PROCEDURE line and ENDPROCEDURE

B Before the PROCEDURE line, not indented

5. A procedure has no parameters. Which header is right?

A PROCEDURE PrintLine()

B PROCEDURE PrintLine

Match the Pairs

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

Left column		Right column
1PROCEDURE ShowMenu		APROCEDURE ShowMenu OUTPUT "1. Play" OUTPUT "2. Quit" ENDPROCEDURE
2ENDPROCEDURE		BPROCEDURE PrintLine
3The statements in the body of a procedure are indented under the PROCEDURE line		CENDPROCEDURE is missing, so the procedure is never closed. Add ENDPROCEDURE on the last line.
4A procedure with no parameters is named without brackets after PROCEDURE		DBrackets were added although there are no parameters. The header should be PROCEDURE ShowMenu.
5PROCEDURE ShowMenu OUTPUT "1. Play" OUTPUT "2. Quit"		EStarts a procedure with no parameters: the keyword PROCEDURE and then the name, with no brackets
6PROCEDURE ShowMenu()		FCloses the procedure definition after the indented statements in its body

Definitions

PROCEDURE ShowMenu

Fill in the Blanks

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

_________ ShowMenu OUTPUT "1. Play" ENDPROCEDURE

PROCEDURE Greet OUTPUT "Hello" ____________

PROCEDURE PrintLine ______ "-----" ENDPROCEDURE

PROCEDURE ________ OUTPUT "Menu" ENDPROCEDURE

PROCEDURE AskName _____ Name ENDPROCEDURE

Spot the Error

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

Question 1

A PROCEDURE ShowMenu

B OUTPUT "1. Play"

C OUTPUT "2. Quit"

D ENDFUNCTION

Question 2

A // Greets the player

B Greet PROCEDURE

C OUTPUT "Hi"

D ENDPROCEDURE

Question 3

A PROCEDURE ShowScore

B Score ← 10

C RETURN Score

D ENDPROCEDURE

Question 4

A PROCEDURE PrintBorder

B OUTPUT "*****"

C OUTPUT "*****"

D ENDPROC

Question 5

A // Show the menu

B PROCEDURE ShowMenu()

C OUTPUT "1. Play"

D ENDPROCEDURE

Answer Key

Defining a procedure with no parameters

Section A: Quick Questions

B — PROCEDURE ShowMenu

A — ENDPROCEDURE

A — PROCEDURE SayHello OUTPUT "Hello" ENDPROCEDURE

A — Indented, between the PROCEDURE line and ENDPROCEDURE

B — PROCEDURE PrintLine

Section B: Match the Pairs

PROCEDURE ShowMenu → Starts a procedure with no parameters: the keyword PROCEDURE and then the name, with no brackets

ENDPROCEDURE → Closes the procedure definition after the indented statements in its body

The statements in the body of a procedure are indented under the PROCEDURE line → PROCEDURE ShowMenu OUTPUT "1. Play" OUTPUT "2. Quit" ENDPROCEDURE

A procedure with no parameters is named without brackets after PROCEDURE → PROCEDURE PrintLine

PROCEDURE ShowMenu OUTPUT "1. Play" OUTPUT "2. Quit" → ENDPROCEDURE is missing, so the procedure is never closed. Add ENDPROCEDURE on the last line.

PROCEDURE ShowMenu() → Brackets were added although there are no parameters. The header should be PROCEDURE ShowMenu.

Section C: Definitions

PROCEDURE ShowMenu — Starts a procedure with no parameters: the keyword PROCEDURE, then its name with no brackets. Indented statements follow, and ENDPROCEDURE closes it.

Section D: Fill in the Blanks

PROCEDURE ShowMenu
   OUTPUT "1. Play"
ENDPROCEDURE

PROCEDURE Greet
   OUTPUT "Hello"
ENDPROCEDURE

PROCEDURE PrintLine
   OUTPUT "-----"
ENDPROCEDURE

PROCEDURE ShowMenu
   OUTPUT "Menu"
ENDPROCEDURE

PROCEDURE AskName
   INPUT Name
ENDPROCEDURE

Section E: Spot the Error

D — A procedure must be closed with ENDPROCEDURE. ENDFUNCTION closes a FUNCTION, so the keywords do not match.

B — The keyword PROCEDURE must come first, followed by the name. It should be PROCEDURE Greet.

C — A procedure does not return a value, so RETURN does not belong in it. The line should be OUTPUT Score.

D — The closing keyword is spelled in full: ENDPROCEDURE. ENDPROC is not a keyword.

B — A procedure with no parameters is written without brackets. It should be PROCEDURE ShowMenu.