QBASIC FILE HANDLING PROGRAMS - ALL IN ONE COLLECTION - COMPUTER SCIENCE 2077

 QBASIC FILE HANDLING PROGRAMS - 

ALL IN ONE COLLECTION - 

COMPUTER SCIENCE 2077

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 INPUT "Enter Roll No."; r INPUT "Enter Name"; n$ INPUT "Enter Class"; c INPUT "Enter Address"; a$ WRITE #1, r, n$, c, a$ NEXT I CLOSE #1 END	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
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
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 INPUT "Enter Name"; n$ INPUT "Enter marks in any three subjects”; A, B, C T = A + B + C P = T / 3 WRITE #1, n$, A, B, C, T, P NEXT I CLOSE #1 END
152.Store SIDNO, name, address and Telephone number of five students and display the records on monitor in sequential data file “STDINFO” OPEN "STDINFO.DAT" FOR OUTPUT AS #1 FOR I = 1 TO 5         INPUT "ENTER NAME"; N$     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
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
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
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
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
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

 

 

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
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
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
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

 

 

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
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
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
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
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$, A, B, C         FLAG = 1     END IF WEND IF FLAG = 0 THEN     PRINT "DATA NOT FOUND" ELSE     PRINT "DATA EDITED" END IF CLOSE KILL "D:\PATIENT.DAT" NAME "D:\TEMP.DAT" AS "D:\PATIENT.DAT" END	181.A sequential data file “RECORD.DAT” contains different records under fields: name rollno., name, address and percentage. Write a program to edit a record and display both edited and unedited records on the screen to compare them side by side. OPEN "D:\RECORD" FOR INPUT AS #1 OPEN "d:\TEMP.DAT" FOR OUTPUT AS #2 CLS INPUT "ENTER ROLL NUMBER TO EDIT DATA"; E FLAG = 0 WHILE NOT EOF(1) INPUT #1, R, N$, A$, P IF E <> R THEN WRITE #2, R, N$, A$, P ELSE INPUT "ENTER ROLL NUMBER"; ER INPUT "ENTER NAME"; EN$ INPUT "ENTER ADDRESS"; EA$ INPUT "ENTER PERCENTAGE"; EP WRITE #2, ER, EN$, EA$, EP FLAG = 1 END IF WEND IF FLAG = 0 THEN PRINT "DATA NOT FOUND" ELSE PRINT "NON EDITED DATA" PRINT "ROLL NUMBER= "; R PRINT "NAME= "; N$ PRINT "ADDRESS= "; A$ PRINT "PERCENTAGE= "; P PRINT "---------------" PRINT "EDITED DATA" PRINT "ROLL NUMBER: "; ER PRINT "NAME: "; EN$ PRINT "ADDRESS: "; EA$ PRINT "PERCENTAGE: "; EP END IF CLOSE KILL "D:\SALARY.DAT" NAME "D:\TEMP.DAT" AS "D:\SALARY.DAT" END