In classe SavingsAccount, method earnInterest(),
the interest is being computed twice in the "println" expression, using the updated balance, not the previous balance:
| public void earnInterest() { |
| | balance = balance*(1+ interestRate/12); |
| | System.out.println("Interest: $" +balance*(interestRate/12)); |
| | printDetails(); |
| } |
So the printed balance is not the sum of the previous balance and the printed interest.
The interest shown in the output is wrong!
Account #0
Withdraw: $100.0
Savings Account #0
Account Owner: Duke
Balance: $5000.0
Interest Rate: 0.02
Interest: $8.347222222222223
Savings Account #0
Account Owner: Duke
Balance: $5008.333333333334
Interest Rate: 0.02
I think this code should be something like:
| public void earnInterest() { |
| | double earnedInterest = balance * interestRate / 12; balance = balance + earnedInterest; |
| | System.out.println("Interest: $" + earnedInterest); |
| | printDetails(); |
| } |
or
| public void earnInterest() { |
| | System.out.println("Interest: $" + balance*(interestRate/12)); |
| | balance = balance*(1+ interestRate/12); |
| | printDetails(); |
| } |
So the printed result would be
Account #0
Withdraw: $100.0
Savings Account #0
Account Owner: Duke
Balance: $5000.0
Interest Rate: 0.02
Interest: $8.333333333333334
Savings Account #0
Account Owner: Duke
Balance: $5008.333333333333
Interest Rate: 0.02
Thanks