Q3. There are two existing data files: "rawdata.txt and 'marks.txt. The file 'rawdata.txt is used to store the students' exam marks only, separated by blank spaces, while the file "marks.bxt' is empty. Write a C++ program which carries out the tasks specified below: a) Open the data files, 'rawdata.txt and 'marks.txt", and check whether they have been opened successfully. Use a while loop to read one mark (represented by an integer) at a time from the file 'rawdata.txt' until the end of file is reached. Each time, evaluate the mark to form a record by using if-else' selection: if the mark is below 40, then form a record consisting of the mark and the word "fail" separated by a blank space, for example: "33 fall"; if the mark is above or equal to 40 but below 70 then form a record consisting of the mark and the word "good" separated by a blank space, for example: "63 good": if the mark is above or equal to 70, then form a record consisting of the mark and the word "excellent" separated by a blank space, for example, b) -83 excellent". Write each record into the file 'marks.txt'. c) After the whole file has been read, output the average mark for all students and close the data files.
Q3. There are two existing data files: "rawdata.txt and 'marks.txt. The file 'rawdata.txt is used to store the students' exam marks only, separated by blank spaces, while the file "marks.bxt' is empty. Write a C++ program which carries out the tasks specified below: a) Open the data files, 'rawdata.txt and 'marks.txt", and check whether they have been opened successfully. Use a while loop to read one mark (represented by an integer) at a time from the file 'rawdata.txt' until the end of file is reached. Each time, evaluate the mark to form a record by using if-else' selection: if the mark is below 40, then form a record consisting of the mark and the word "fail" separated by a blank space, for example: "33 fall"; if the mark is above or equal to 40 but below 70 then form a record consisting of the mark and the word "good" separated by a blank space, for example: "63 good": if the mark is above or equal to 70, then form a record consisting of the mark and the word "excellent" separated by a blank space, for example, b) -83 excellent". Write each record into the file 'marks.txt'. c) After the whole file has been read, output the average mark for all students and close the data files.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Transcribed Image Text:Q3. There are two existing data files: "rawdata.bxť and 'marks.txt. The file 'rawdata.txt is
used to store the students' exam marks only, separated by blank spaces, while the file
'marks.txt is empty. Write a C++ program which carries out the tasks specified below:
a) Open the data files, rawdata.txt and 'marks.txt, and check whether they have
been opened successfully.
Use a while loop to read one mark (represented by an integer) at a time from the
file 'rawdata.bxť until the end of file is reached. Each time, evaluate the mark to
form a record by using if-else' selection:
if the mark is below 40, then form a record consisting of the mark and the
word "fail" separated by a blank space, for example: "33 fail";
if the mark is above or equal to 40 but below 70 then form a record
consisting of the mark and the word "good" separated by a blank space, for
example: "63 good",
if the mark is above or equal to 70, then form a record consisting of the
mark and the word "excellent" separated by a blank space, for example,
83 excellent".
Write each record into the file 'marks.txt'.
b)
c)
After the whole file has been read, output the average mark for all students and
close the data files.
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