Ideas in this flowchart

• Conditionals validate command-line arguments in Code Sample 27.2
• The program receives input as command-line arguments.
• Conditionals allow the program to check the number of arguments.
• The program checks whether the user provided the correct number of arguments.
• The correct number of arguments was provided.
• The user did not provide the correct number of arguments.
• The program quits when the argument count is incorrect.