QBASIC FILE HANDLING PROGRAMS -
ALL IN ONE COLLECTION -
COMPUTER SCIENCE 2077
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146.Write a program to store Roll no.,
Name, Class and Address of any five students. [SEE 2074] OPEN "Student.dat" FOR OUTPUT AS #1 FOR I = 1 TO 5 |
147.A sequential data file called
“student.dat” contains same records under the field’s name, english, nepali
and computer. Write a program to add some more records in the same sequential
data file. [SLC 2068] OPEN “student.dat” FOR APPEND AS #1 DO CLS INPUT “ENTER NAME”; N$ INPUT “ENTER MARKS IN ENGLISH”; E INPUT “ENTER MARKS IN NEPALI”; N INPUT “ENTER MARKS IN COMPUTER”; C WRITE #1, N$, E, N, C INPUT “DO YOU WANT TO CONTINUE”; CH$ LOOP WHILE UCASE$(CH$) = “Y” CLOSE #1 END |
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148.A
sequential data file “RECORD.DAT”contains records of Name, Address and Salary of
employees. WAP to add some more records in the data file “RECORD.DAT”. Program
should terminate with user choice. OPEN “RECORD.DAT” FOR APPEND AS #1 DO CLS INPUT “ENTER NAME”; N$ INPUT “ENTER MARKS IN ENGLISH”; E INPUT “ENTER MARKS IN NEPALI”; N INPUT “ENTER MARKS IN COMPUTER”; C WRITE #1, N$, E, N, C INPUT “DO YOU WANT TO CONTINUE”; CH$ LOOP WHILE UCASE$(CH$) = “Y” CLOSE #1 END |
149.Create a data file to store the
records of few employees having Name, Address, Post, Gender and Salary
fields. [SEE 2073] OPEN “std.rec” FOR OUTPUT AS #1 TOP: CLS INPUT “Enter Name”; N$ INPUT “Enter Address”; A$ INPUT “Enter Post”; P$ INPUT “Enter gender”; G$ INPUT “Enter Salary”; S WRITE #1, N$, A$, P$, G$, S INPUT “Do you want to continue”; CH$ IF UCASE$(CH$)=”Y” THEN GOTO TOP CLOSE #1 END |
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150.Create a
sequential data file ’Price.dat’ to store item name, quantity and Rate also
calculate total amount(total=Quantity X Rate).Program should terminate
according to the user’s choice. OPEN “price.dat” FOR OUTPUT AS #1 TOP: CLS INPUT “Enter Item Name”; N$ INPUT “Enter Quantity”; Q INPUT “Enter Rate”; R T = Q * R WRITE #1, N$, Q, R, T INPUT “Do you want to continue”; CH$ IF CH$=”Y” OR CH$ = “y” THEN GOTO TOP CLOSE #1 END |
151.Create a
sequential data file’post.dat’ to store name and marks of any three subjects
also calculate total and percentages only for 15 students. OPEN
"post.dat" FOR OUTPUT AS #1 FOR I = 1 TO 15 P = T / 3 WRITE #1, n$, A, B,
C, T, P NEXT I |
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152.Store
SIDNO, name, address and Telephone number of five students and display the
records on monitor in sequential data file “STDINFO” OPEN
"STDINFO.DAT" FOR OUTPUT AS #1 FOR
I = 1 TO 5 INPUT "ENTER NAME"; N$ INPUT "ENTER ADDRESS"; A$ INPUT "ENTER TELEPHONE"; T# WRITE #1, N$, A$, T# NEXT
I CLOSE
#1 OPEN
"STDINFO.DAT" FOR INPUT AS #1 CLS FOR
I = 1 TO 5 INPUT #1, N$, A$, T# PRINT N$, A$, T# NEXT
I CLOSE
#1 END |
153.A
sequential data file “Address.inf” contains serial no, name, address,
telephone and email_id.WAP to record as many records as the user wants. The
serial number should be generated automatically like 5001,5003,5005. OPEN
" Address.inf " FOR OUTPUT AS #1 DO CLS C
= 5001 INPUT
“ENTER NAME”; N$ INPUT
“ENTER ADDRESS”; A$ INPUT
“ENTER TELEPHONE”; T# INPUT
“ENTER EMAIL”; E$ WRITE #1, C, N$, A$, T$, E$ C
= C + 2 INPUT
“DO YOU WANT TO CONTINUE (Y / N)”; CH$ LOOP
WHILE UCASE$(CH$) = “Y” CLOSE
#1 END |
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154.A
Sequential data file called "SEE.DAT" has stored data under the
field heading Symbol No., Name, English, Nepali, and Computer. Write a
program to display all the information of those students whose marks in
Computer is more than 80. OPEN
"SEE.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, A, B$, C, D, E IF E > 80 THEN PRINT A, B$, C, D, E WEND CLOSE
#1 END |
155.A
sequential data file “STD.TXT” contains name and marks in three different
subjects of some students. Write a program to display only fail student’s
records assuming pass marks 40. OPEN
"STD.TXT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, B$, C, D, E IF C < 40 AND D <40 AND E <40
THEN PRINT B$, C, D, E WEND CLOSE
#1 END |
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156.Write
a program which reads records from the file ”Result.DAT” having the fields
name, and marks of three different subjects and display only those records
whose percentage is greater than 60 and less than 80. Also count the total
number of records presenting in that data files. OPEN
"STD.TXT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, B$, C, D, E A=A+1 T=C+D+E P=T/3 IF P > 60 AND P < 80 THEN PRINT B$, C, D, E WEND PRINT
“TOTAL NO. OF RECORDS=”; A CLOSE
#1 END |
157.Write a
program to read all the records from the data file “STUDENT.TXT” and display
all the records where the fields name are unknown. OPEN
"STUDENT.TXT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) LINE INPUT #1, A$ PRINT A$ WEND CLOSE
#1 END |
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158.A data file "pabson.txt"
contains the records composed of the fields like school, principal, address,
contact. Write a program in Qbasic to display records of the schools located
in either Kathmandu or Palpa OPEN
"PABSON.TXT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, A$, B$, C$, D IF UCASE$(C$) = “KATHMANDU” OR UCASE$(C$)
= “PALPA” THEN PRINT A$, B$, C$, D WEND CLOSE
#1 END |
159.A
data file “INFO.DAT” has numerous records in it with name, address age, and
telephone numbers in it. Write a program to read all the records and print
those with address “NEPAL” and age >15 OPEN
"INFO.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, A$, B$, C, D IF UCASE$(B$) = “NEPAL” AND C >15 THEN
PRINT A$, B$, C, D WEND CLOSE
#1 END |
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160.A sequential data file called 'ADDRESS.DAT' contains NAME,
AGE, CITY and TELEPHONE fields. Write a program to display all the contents
of that data file. OPEN
"ADDRESS.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, A$, B, C$, D PRINT A$, B, C$, D WEND CLOSE
#1 END |
161.A data file “lib.txt” consists of book’s name, author’s name and
price of books. Write a program to count and display the total number of
records present in the file. OPEN
"LIB.TXT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, A$, B$, C D
= D + 1 WEND PRINT
“TOTAL NUMBER OF RECORDS=”; D CLOSE
#1 END |
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162.Write a
program in QBASIC to open a sequential data file “EMP.DAT”, which contains
employees records: Name, address and phone number and display all the records
as well as total number of records stored in the file. OPEN
"LIB.TXT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, A$, B$, C PRINT
A$, B$, C D
= D + 1 WEND PRINT
“TOTAL NUMBER OF RECORDS=”; D CLOSE
#1 END |
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164.A
sequential data file “SALARY.DAT” contains the information, Employee-Code,
Employee-Name, Post, Basic-Salary. Write a program to display those records
whose Basic-salary is between 10000 to 15000 and Post is ‘OFFICER’. OPEN
"SALARY.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, E,, N$, P$, S IF UCASE$(P$) = “OFFICER” AND S >=
10000 AND S>= 15000 THEN PRINT A$, B$, C, D WEND CLOSE
#1 END |
165.A
data file name “EMP.DAT”, contains number of records having fields name, post
and salary. Write a program to count total number of “Manager” in the data
file. (hint: Manager is a post) OPEN
"EMP.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, N$, P$, S IF UCASE$(P$) = “MANAGER” THEN PRINT C =
C + 1 WEND PRINT
“TOTAL NO.OF MANAGERS ARE”; C CLOSE
#1 END |
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166.A
sequential data file “emp.dat” contains name, post and salary fields of
information about employees. Write a program to display all the information
of employees along with tax amount (also tax is 15% of salary). OPEN
"EMP.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, N$, P$, S T = 15 / 100 * S PRINT
N$, P$, S, T WEND CLOSE
#1 END |
167.A data
file “Salary.Dat” contains the information of employee regarding their name,
post and salary. Write a program to display all the information of employee whose
salary is greater than 15000 and less than 40000. OPEN
"EMP.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, N$, P$, S IF S >= 15000 AND S <= 40000 THEN
PRINT N$, P$, S WEND CLOSE
#1 END |
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168.Write a
program that reads the ”INFO.DAT” file that has several record such as name,
address, gender, post, and salary .The program display those record whose sex
is male and salary more than 10,000 and also the program counts the total
number of records in that file. OPEN
"INFO.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, N$, A$, G$, P$, S C
= C + 1 IF
UCASE$(G$)=”M” AND S >= 10000 THEN PRINT N$, A$, G$, P$, S WEND PRINT
“TOTAL NUMBER OF RECORDS=”; C CLOSE
#1 END |
169.A
sequential data file’post.dat’ has few records related to name, address,
salary.WAP to display the records whose address begins with ‘S’ or ‘D’ OPEN
"POST.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, N$, P$, S A$
= UCASE$(LEFT$(N$,1)) IF
A$ = “S” OR A$ = “D” THEN PRINT N$, P$, S WEND CLOSE
#1 END |
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170.Write a
program to open a data file “record.dat” that contains name, address, date of
birth, email and telephone number of some employees. Now display all those
records whose date of birth is in current month. OPEN
"birth.dat" FOR INPUT AS #1 CLS WHILE
NOT EOF(1)
INPUT #1, n$, d$, a$
b$ = LEFT$(DATE$, 2)
c = VAL(b$)
e$ = LEFT$(d$, 2)
f = VAL(e$)
IF c = f THEN PRINT n$, d$, a$ WEND CLOSE
#1 END |
171.A
sequential data file “Record.dat” has few records related to name, address,
post and DOB(mm/dd/yyyy). WAP to display the records of all those who were
born between 1971 to 1999. OPEN
"RECORD.dat" FOR INPUT AS #1 CLS WHILE
NOT EOF(1)
INPUT #1, n$, a$, p$, d$
d$ = RIGHT$(d$, 4)
c = VAL(b$)
IF c >= 1971 and c<=1999 THEN PRINT n$, d$, a$ WEND CLOSE
#1 END |
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172.Write a Qbasic program that read
the "EMP.DAT" file with Name, Address, Post and Salary columns from
E: drive that has 500 records of employees and displays only its last 50
records. OPEN
"E:\EMP.DAT" FOR INPUT AS #1 CLS FOR
i = 1 TO 500
INPUT #1, n$, a$, p$, s
IF i >= 450 AND i <= 500 THEN PRINT n$, a$, p$, s NEXT
i CLOSE
#1 END |
173.A
sequential data file has 100 records having field name, class and roll
number. Write a program to display from 50th to 60th
records. OPEN
"ABC.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, N$, C, R D
= D + 1 IF
D >= 50 AND D <= 60 THEN PRINT N$, C, R WEND CLOSE
#1 END |
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174.Write a
program to display the first 10 records from a file named “resource.dat”
having fields name, phone and email. OPEN
"RESOURCE.DAT" FOR INPUT AS #1 CLS FOR
I = 1 TO 10 INPUT #1, N$, C, R PRINT
N$, C, R NEXT
I CLOSE
#1 END |
175.A
data file named “EMP.DAT” contains some records with the fields Code, Name,
Post and Salary. Write a program to print odd position records of the data
file. OPEN
"EMP.DAT" FOR INPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, C, N$, P$, S D
= D + 1 IF
MOD 2 = 1 THEN PRINT C, N$, P$, S WEND CLOSE
#1 END |
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176.A
sequential data file named “abc.dat” has several records having fields name,
roll and class. Write a program to copy all the records of class 10 into a
newly created file new.dat. OPEN
"ABC.DAT" FOR INPUT AS #1 OPEN
"NEW.DAT" FOR OUTPUT AS #1 CLS WHILE
NOT EOF (1) INPUT #1, N$, R, C IF
C = 10 THEN WRITE #2, N$, R, C WEND CLOSE
#1, #2 END |
177.A data
file named “record.dat” contains name, age and salary for n number of
persons. Write a program to input a name to search data from a data file. If
the data is not found, then display the message “Data not found in the list”. OPEN “RECORD.DAT” FOR INPUT AS #1 CLS INPUT “Enter name to be searched”;
S$ FLAG=0 WHILE NOT EOF(1) INPUT #1, N$, A$, S IF UCASE$(S$)=UCASE$(N$) THEN PRINT N$, A$, S FLAG=1 END IF WEND IF FLAG=0 THEN PRINT “Data not
found” CLOSE #1 END |
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178.A sequential data file 'Student.dat' contains registration
number, student name, address and date of birth of some students. Write a
program that asks a user to input a registration number and displays the
record of the particular registration if present. OPEN “STUDENT.DAT” FOR INPUT AS #1 CLS INPUT “Enter registration no. to
be searched”; S FLAG=0 WHILE NOT EOF(1) INPUT #1, R, N$, A$, D$ IF S = R THEN PRINT R, N$, A$, D$ FLAG=1 END IF WEND IF FLAG=0 THEN PRINT “Data not
found” CLOSE #1 END |
179.WAP
that asks a post of the employee and displays his/her records from the
sequential data file “XYZ.REC” having fields Name, Post, Dept and Salary. OPEN “XYZ.REC” FOR INPUT AS #1 CLS INPUT “Enter post to be searched”;
S$ FLAG=0 WHILE NOT EOF(1) INPUT #1, N$, P$, D$, S IF UCASE$(S$)=UCASE$(P$) THEN PRINT N$, P$, D$, S FLAG=1 END IF WEND IF FLAG=0 THEN PRINT “Data not
found” CLOSE #1 END |
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180.Delete
some records from “neps.dat” file where computer ask user to enter the
record, which is to be deleted. (Fields are name, address, and telephone
number) OPEN
“NEPS.DAT” FOR INPUT AS #1 OPEN
“TEMP.DAT” FOR OUTPUT AS #1 CLS INPUT
“Enter name which is to be deleted”; D$ WHILE
NOT EOF(1) INPUT
#1, N$, A$, T# IF
UCASE$(D$)<>UCASE$(N$) THEN WRITE
#2, N$, A$, T# ELSE PRINT
“Deleted data=”; N$, A$, T# END
IF WEND CLOSE
#1, #2 KILL
“NEPS.DAT” NAME
“TEMP.DAT” AS “NEPS.DAT” END ---------------------------------------------------------------------------- 182.A
sequential data file “marks.dat” contains information such as student’s name,
marks obtained in math, science and computer. Write a program that increase
the marks of computer by 10 of those student who secured less than 40 OPEN
"D:\PATIENT.DAT" FOR INPUT AS #1 OPEN
"d:\TEMP.DAT" FOR OUTPUT AS #2 CLS FLAG = 0 WHILE NOT EOF(1) INPUT #1, N$, A, B, C IF C > 40 THEN WRITE #2, N$, A, B, C ELSE C = C + 10 WRITE #2, N$, A, B, C FLAG = 1 END IF WEND IF FLAG = 0 THEN PRINT "DATA NOT FOUND" ELSE PRINT "DATA EDITED" END IF CLOSE KILL
"D:\PATIENT.DAT" NAME
"D:\TEMP.DAT" AS "D:\PATIENT.DAT" END |
181.A
sequential data file “RECORD.DAT” contains different records under fields:
name rollno., name, address and percentage. Write a program to edit a record
and display both edited and unedited records on the screen to compare them
side by side. OPEN
"D:\RECORD" FOR INPUT AS #1 |
