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  1. // Amari Mosley 			CSC5 			Chapter 5, P. 297, #19
  2. //
  3. /**************************************************************
  4. *
  5. * ANALYZE BUDGET 
  6. *______________________________________________________________
  7. * This program asks the user to enter their monthly budgeted amount. 
  8. * It then uses a loop to prompt the user to enter each expense 
  9. * for the month, keeps a running total, and displays 
  10. * whether the user is over or under their budget.
  11. *
  12. * INPUT
  13. *   monthlyBudget : Total amount budgeted for the month
  14. *   expense       : Individual expense amounts entered in the loop
  15. *
  16. * OUTPUT
  17. *   Total Expense : Sum of all expenses entered
  18. *   Budget Status : Amount by which the user is over or under budget
  19. *
  20. **************************************************************/
  21.  
  22. #include <iostream>
  23. #include <iomanip>
  24.  
  25. using namespace std;
  26.  
  27. int main() {
  28.     // INPUT
  29.     double monthlyBudget;
  30.     double expense;
  31.  
  32.     // OUTPUT / WORKING VARIABLES
  33.     double totalExpenses = 0.0;
  34.  
  35.     // Prompt user for monthly budget
  36.     cout << "Enter the amount budgeted for the month: $";
  37.     cin >> monthlyBudget;
  38.  
  39.     // Prompt user for expenses using a loop
  40.     // Enter a negative number or 0 to finish if desired, 
  41.     // or use a sentinel/controlled loop structure. 
  42.     // Here we prompt for expenses until the user indicates they are done 
  43.     // by entering a negative value or 0, or we can use a sentinel value approach.
  44.     // Standard approach for this textbook problem: prompt for each expense, 
  45.     // using a sentinel value (like 0 or a negative number) to stop.
  46.     cout << "\nEnter your monthly expenses (enter 0 or a negative number when finished):\n";
  47.  
  48.     cout << "Enter an expense ($): ";
  49.     cin >> expense;
  50.  
  51.     while (expense > 0) {
  52.         totalExpenses += expense;
  53.         cout << "Enter an expense ($): ";
  54.         cin >> expense;
  55.     }
  56.  
  57.     // Display results with formatting
  58.     cout << fixed << setprecision(2);
  59.     cout << "\n-----------------------------------------\n";
  60.     cout << "Total Budgeted:   $" << monthlyBudget << endl;
  61.     cout << "Total Expenses:   $" << totalExpenses << endl;
  62.     cout << "-----------------------------------------\n";
  63.  
  64.     if (totalExpenses < monthlyBudget) {
  65.         cout << "You are under budget by $" << (monthlyBudget - totalExpenses) << "." << endl;
  66.     } else if (totalExpenses > monthlyBudget) {
  67.         cout << "You are over budget by $" << (totalExpenses - monthlyBudget) << "." << endl;
  68.     } else {
  69.         cout << "You have spent exactly your budgeted amount." << endl;
  70.     }
  71.  
  72.     return 0;
  73. }
Success #stdin #stdout 0s 5316KB
comments (?)
stdin
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2000.00
1100.00
450.00
350.50
150.00
-1
stdout
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Enter the amount budgeted for the month: $
Enter your monthly expenses (enter 0 or a negative number when finished):
Enter an expense ($): Enter an expense ($): Enter an expense ($): Enter an expense ($): Enter an expense ($): 
-----------------------------------------
Total Budgeted:   $2000.00
Total Expenses:   $2050.50
-----------------------------------------
You are over budget by $50.50.
https://ideone.com/91Mkma
Ch 5. #19
language:
C++ (gcc 8.3)
created:
14 days ago
visibility:
public

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