Prompt user for number of rows, including the current attempt number and total attempts.

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

Prerequisites

• Completed labs for Lab#1.x thru Lab#5.x

• Completed reading Chapter 1-5

Objectives

• while loops exercise

• do-while loops exercise

• for loops exercise

• Input validation using loops.

• relational and logical expressions

• flags

________________________________________

Lab Assignment #6.1

Using loops, write a program to read the number of rows (1-9) and columns (1-9) from user.  User input is validated and a maximum of 3 attempts for each row/column is permitted before program displays error.  When successful input by user, the program will then print 3 different tables with values by iterating through Row# and Column#. 

Program Flow

Step 1: Displays purpose of program.

Step 2: Prompt user for number of rows, including the current attempt number and total attempts.

Enter number of rows from 1-9 (attempts 1/3):

Step 3: Validate number of rows is from 1 to 9.   

Step 4: When number of columns is NOT 1-9. 

a. Print an error message stating

"Invalid number of rows. Must be 1-9. Please try Again." 

b. Then print prompt again with the attempt count increased:

"Enter number of rows from 1-9 (attempts 2/3):" 

Step 5: If number of attempts is exceeded, then print message and end program:

"Exceeded Attempts." 

Step 6: When the user enters a valid number of rows, Prompt user for number of columns, including the current attempt number and total attempts. Entering rows also has 3 attempts.

Enter number of columns from 1-9 (attempts 1/3):

Step 7: Validate number of columns is from 1 to 9.   

Step 8: When number of columns is NOT 1-9. 

a. Print an error message stating 

"Invalid number of columns. Must be 1-9. Please try Again." 

b. Then print prompt again with the attempt count increased:

"Enter number of columns from 1-9 (attempts 2/3):" 

Step 9: If number of attempts is exceeded, then print message and end program:

"Exceeded Attempts."

NOTE: DO NOT use exit(), goto, continue, break, or return statements in the middle of program to end program.  Try to construct the if-statements in a way that the logic drops to end of program. There should be no exit() calls and only 1 return at end of main().

Step 10: At completion of program, 

a. if successful print “Congrats”.  

b. If the program did not succeed, print “Exceeded Attempts”.

 

 

Attachments:

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