ICS - Assignment 1 - fdsfsd PDF

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Introduction to Computer Science Assignment 1: Individual Assignment 1. A transaction record on a sales commission file contains the retail price of an item sold, a transaction code that indicates the sales commission category to which an item can belong, and the employee number of the person who sold the item. The transaction code can contain the values A, B or C, which indicate that the percentage commission will be 6%, 8% or 10% respectively. Construct an algorithm that will read a record on the file, calculate the commission owing for that record and print the retail price, commission and employee number. (8 marks) Answer: Empno

Empno

RP

RP

Transcode

Comms

Defining Diagram: INPUT Empno Transcode RP

PROCESSING Read Record Calculate Comm Print Empno, Comm, RP

Algorithm: 1. 2. 3. 4.

5.

6. 7. 8.

Read record Dowhile (Not EOF) Set msg to blank IF (Transcode == A) then Comm = RP * 6% ElseIF (Transcode == B) then Comm = RP * 8% ElseIF (Transcode == C) then Comm = RP * 10% Else Msg = ‘Transaction Code Invalid’ ENDIF ENDIF ENDIF IF (msg == blank) then Print RP, Comm, Empno Else Print ‘Transaction Code Invalid’ EndIF Read next record EndDO End

OUTPUT Empno Comm RP

Desk Check: Input Data 1ST Record 021 A 250

Empno Transcode RP

2nd Record 075 C 635

3 rd Record 035 H 35

4th Record EOF

Expected Results 1ST Record 021 15 250

Empno Comm RP Msg

2nd Record 075 63.50 635

3rd Record

4TH Record

Transaction Code Invalid

Desk Check Table: Statement No 1st Pass 1 2 3 4 5 6 2 3 4 5 6 2 3 4 5 6 2

Empno

Transcode

RP

021

A

250

Comm

Msg

Dowhile

True Blank Print 075

C

Print 635

15 Print True Blank

Print 035

H

Print 35

63.50 Print True Blank Transaction Code Invalid Print

EOF False

2. Design an algorithm that will prompt an operator for a student’s serial number and the student’s exam score out of 100. Your program is then to match the exam score to a letter grade and print the grade to the screen. Calculate the letter grade as follows: Exam Score 85 and above 75-84 65-74 50-64 Below 50

Assigned Grade HD D C P F

Answer: Serial Score

Grade

Defining Diagram: INPUT Serial Score

PROCESSING Prompt for Serial, Score Get Serial, Score Calculate Grade Print Grade

Algorithm: 1. Prompt for Serial, Score 2. Get Serial, Score 3. If (Score < 0 and Score > 100) then Grade = ‘Invalid Score’ ElseIF (Score >= 85 and Score = 75 and Score = 65 and Score = 50 and Score = 0 and Score 0 and Income 20000 and Income 30000 and Income 40000 and Income 80000 and Income 120000 and Income 160000 and Income 200000 and Income 240000 and Income 280000 and Income 320000) then Remainder = Income -320000 Tax = 44550 + (Remainder * 22%) ENDIF ENDIF ENDIF ENDIF ENDIF ENDIF ENDIF ENDIF ENDIF ENDIF ENDIF

4. 5.

ENDIF Display Income, Tax End

Desk Check: Input Data Input Income

1st Data Set 845000

2nd Data Set -57000

1st Data Set 845000 160050

2nd Data Set -57000 Invalid Number

Expected Result Output Income Tax Desk Check Table Sequence No. 1st Pass 1,2 3 4 2nd Pass 1,2 3 4

Income

Tax

845000 Display

160050 Display

-57000 Display

Invalid Number Display...