Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Please Use Python
Transcribed Image Text:Write a program that allows the user to navigate the lines of text in a file. The
program should prompt the user for a filename and input the lines of text into a list.
The program then enters a loop in which it prints the number of lines in the file and
prompts the user for a line number. Actual line numbers range from 1 to the
number of lines in the file. If the input is 0, the program quits. Otherwise, the
program prints the line associated with that number.
An example file and the program input and output is shown below:
example.txt
Line 1.
Line 2.
Line 3.
Enter the input file name: example.txt
The file has 3 lines.
Enter a line number [0 to quit]: 2
2: Line 2.
The file has 3 lines.
Enter a line number [0 to quit]: 4
ERROR: line number must be less than 3.
The file has 3 lines.
Enter a line number [0 to quit]: 0
Make sure the program gracefully handles a user entering a line number that is too
high.
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