Chapter 7: Problem 18
Describe the way that you use a temporary file in a program that deletes a record from a sequential file.
Chapter 7: Problem 18
Describe the way that you use a temporary file in a program that deletes a record from a sequential file.
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Get started for freeWhat is an input file?
In what mode do you open a file if you want to write data to it, but you do not want to erase the file's existing contents? When you write data to such a file, to what part of the file is the data written?
Assume that the file data.txt exists and contains several lines of text. Write a short program using the while loop that displays each line in the file.
What is a record? What is a field?
What does it mean when the readline method returns an empty string?
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