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  1. //Jeremy Huang CS1A Practice Practicum
  2. //
  3. /**************************************************************
  4. *
  5. * CALCULATE SAVINGS BALANCE
  6. * ____________________________________________________________
  7. * This program calculates the balance of a savings account at the
  8. * end of a period of time. It takes input for the annual interest 
  9. * rate, the starting balance, and the number of months that passed 
  10. * since the account was made, and takes the monthly interest and 
  11. * adds it to the account for calculation.
  12. * ____________________________________________________________
  13. * INPUT
  14. * annualInterestRate : the annual interest rate
  15. * startingBalance    : the starting balance
  16. * months             : the months since the account was created
  17. *
  18. * OUTPUT
  19. * balance            : total balance
  20. * countDeposit       : amount of times deposited
  21. * countWithdrawal    : amount of times withdrawn
  22. * totalInterest      : total interest earned
  23. *
  24. **************************************************************/
  25.  
  26. #include <iostream>
  27. using namespace std;
  28.  
  29. int main() {
  30. 	float annualInterestRate;
  31. 	double startingBalance;
  32. 	double balance;
  33. 	double deposit;
  34. 	double withdrawal;
  35. 	double totalInterest;
  36. 	int months;
  37.  
  38. 	int countDeposit=0;
  39. 	int countWithdrawal=0;
  40.  
  41. 	//User Input
  42. 	cout<<"Enter the annual interest rate (percent): "<<endl;
  43. 	cin>>annualInterestRate;
  44. 	cout<<"Enter the starting balance: "<<endl;
  45. 	cin>>startingBalance;
  46. 	cout<<"Enter the number of months since the creation of the account: "<<endl;
  47. 	cin>>months;
  48.  
  49. 	float monthlyInterestRate = (annualInterestRate/100)/12;
  50.  
  51. 	//Output Result
  52. 	for(int i=1; i<=months; i++)
  53. 		{
  54. 			cout<<"Enter amount deposited for month "<<i<<": "<<endl;
  55. 			cin>>deposit;
  56. 			while (deposit<0)
  57. 			{
  58. 				cout<<"Invalid user input, please enter a new amount: "<<endl;
  59. 				cin>>deposit;
  60. 			}
  61. 			balance+=deposit;
  62.  
  63. 			cout<<"Enter amount withdrawn for month "<<i<<": "<<endl;
  64. 			cin>>withdrawal;
  65. 			while (withdrawal<0)
  66. 			{
  67. 				cout<<"Invalid user input, please enter a new amount: "<<endl;
  68. 				cin>>withdrawal;
  69. 			}
  70. 			balance-=withdrawal;
  71.  
  72. 			balance = balance + (balance*monthlyInterestRate);
  73. 			totalInterest = totalInterest + (balance*monthlyInterestRate);
  74.  
  75. 			if (deposit>0)
  76. 			{
  77. 				countDeposit++;
  78. 			}
  79.  
  80. 			if (withdrawal>0)
  81. 			{
  82. 				countWithdrawal++;
  83. 			}
  84.  
  85. 			if (i==months)
  86. 			{
  87. 				cout<<"Ending Balance: "<<balance<<endl;
  88. 				cout<<"Total amount of deposits: "<<countDeposit<<endl;
  89. 				cout<<"Total amount of withdrawals: "<<countWithdrawal<<endl;
  90. 				cout<<"Total interest earned: "<<totalInterest<<endl;
  91. 			}
  92. 		}
  93. 	return 0;
  94. }
Success #stdin #stdout 0.01s 5320KB
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stdout
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Enter the annual interest rate: 
Enter the starting balance: 
Enter the number of months since the creation of the account: 
Enter amount deposited for month 1: 
Invalid user input, please enter a new amount: 
Enter amount withdrawn for month 1: 
Enter amount deposited for month 2: 
Enter amount withdrawn for month 2: 
Enter amount deposited for month 3: 
Enter amount withdrawn for month 3: 
Enter amount deposited for month 4: 
Enter amount withdrawn for month 4: 
Enter amount deposited for month 5: 
Enter amount withdrawn for month 5: 
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Enter amount withdrawn for month 36: 
Ending Balance: 12639
Total amount of deposits: 36
Total amount of withdrawals: 36
Total interest earned: 1854.33
https://ideone.com/4aUs9D
language:
C++ (gcc 8.3)
created:
8 days ago
visibility:
public

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