computer science

Q1. – Find The Bugs (5 bugs)

//  College maintains a master file of students and credits earned. // Each semester the master is updated with a transaction file // that contains Student ID and credits earned during the semester. // Each file is sorted in Student ID number order. Student name only exists in the master file. start    Declarations       num masterID       string masterName       num masterCredits       num transID             string bothDone = “N”       num HIGH_VALUE = 999999       InputFile master       InputFile trans       OutputFile newMaster    getReady()    while bothDone = “N”       detailLoop()    endwhile    allDone() stop getReady()    open master “studentFile.dat”    open transaction “semesterCredits.dat”    open newMaster “updatedStudentFile.dat”    readMaster()    readTrans()    checkBoth() return readMaster()    input masterID, masterName, credits from master    if eof then       masterID = HIGH_VALUE    endif return readTrans()    input transID, transCredits from trans    if eof then       transID = HIGH    endif return checkBoth()    if masterID = HIGH_VALUE OR transID = HIGH_VALUE then       bothDone = “Y”    endif return detailLoop()    if masterID = transID then       match()    else       if masterID > transID then          noMasterForTrans()       else          noTransForMaster()       endif    endif    checkBoth() return   match()    masterCredits = masterCredits + transCredits    output masterID, masterName, masterCredits to newMaster    readMaster()    readTrans() return noMasterForTrans()    output “No master file record matches transaction “, transID    readTrans() return noTransForMaster()    output masterID, masterName, masterCredits to newMaster    readMaster() return allDone()    close master    close trans    close newMaster return

Q2. – The  Library keeps a file of all books borrowed every month. Each file is in Library of Congress number order and contains additional fields for author and title. Write the pseudocode for a program that merges the files for January and February to create a new file with all of the books borrowed in the two-month period.
 Be sure to use appropriate modules!

Q3. – Do the following Exercise. Be sure to use appropriate modules!
 

Norman’s Department Store keeps a record of every sale including a transaction number (T1, T2,…), the dollar amount of the sale, and the department number in which the sale was made (department number values are 1 through 3 for this example). Design the logic for a program that inputs the sales data (transaction number, dollar amount of sale, and department number) which are sorted by department number, and outputs a report to a file showing the department number, transaction number and amount for each sale, with a total dollar amount at the change/end of each department and a Grand Total at the end of the report (see sample below).

Sample data for “NormanSales.txt” inputfile: T1, 250, 1 T2, 500, 1 T3, 100, 2 T4, 300, 2 T5, 200, 2 T6, 350, 3 T7, 250, 3 T8, 150, 3 Sample of the OUTPUT (report file – “NormanReport.txt”) – do not worry about the spacing between data:                     Sales by Department     Department       Transaction        Sales Value             1                          T1                     250             1                          T2                     500     Department Total is 750             2                          T3                    100             2                          T4                    300             2                          T5                    200     Department Total is 600             3                          T6                    350             3                          T7                    250             3                          T8                    150     Department Total is 750     Grand Total is    2100