Chapter 7: Text File

Question 1

How to permanently store data created in a program?

Answer 1

saving it in a data file

Question 2

What is a Data File(input file)

Answer 2

a file containing input data for a program

Question 3

Advantages of Using Text File as data files

Answer 3

1. Entering data with human readable data dile
2. if output is written to a file, a permanent copy will be available
3. output generated can be used as input data to another file
4. easy to check & edit
5. you can establish your own format

Question 4

Opening a File

Answer 4

fileVariable = open(filename.txt, mode)

Question 5

modes for opening files:

Answer 5

1. r = open a file for reading
2. w = opens a file for writing. if file already exists, existing contents r deleted and replaced
3. a = opens a file for appending data
4. rb = reading binary data
5. wb = writing binary data

Question 6

Writing data to a file:

Answer 6

open file for output

outfile = open(“PrimeMinisters.txt”, “w”)

outfile.write(“gddjjd”)
outfile.write(“hdhfkeje”)

outfile.close()