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1. ## Boolean help

Hey, I'm stuck on my current code, interest calculator, to solve for simple, monthly compounded, and daily compounded interest.
If one error occurs I need it to state the error, if two errors occur I need it to state them both, and so on..
Right now if I have an error on any of them my last error is the one that pops up.. Any help would be great!!
```import java.util.Scanner;
public class InterestCalculator2{
public static void main(String[] args )
{
Scanner input = new Scanner(System.in);

//Prompt user to enter loan amount
System.out.print("Enter Loan Amount: ");
int principle = input.nextInt();

//Prompt user to enter interest rate
System.out.print("Enter Yearly Interest Rate (1 to 100 percent): ");
double interest = input.nextDouble();

//Prompt user to enter term
System.out.print("Enter the Term (in months): ");
int term = input.nextInt();

double simple= principle*(interest/100.0)*(term/12.0);
double repaidSimple= simple+principle;
double a = 1.0+((interest/100)/365.0);
double b = (365*(term/12.0));
double daily = Math.pow(a,b);
double dailyCompound = (principle*daily)-principle;
double repaidDaily = dailyCompound + principle;
double c = 1.0+((interest/100)/12.0);
double d = (12*(term/12.0));
double monthly = Math.pow(c, d);
double monthlyCompound = (principle*monthly)-principle;
double repaidMonthly = monthlyCompound + principle;
int type = 0;

if (principle > 0)
{
if (interest > 0 && interest < 100)
{
if(term > 0)
{
switch(type)
{
case 1:
break;

case 2:
break;

case 3:
break;

default:
break;
}
}
else
{
System.out.println("Data Error: Interest rate must be greater than or equal to zero and less than or equal to 100. You entered " +interest);
}
}
else
{
System.out.println("Data Error: Loan amount must be greater than zero. You entered " +principle);
}
}
else
{
System.out.println("Data Error: Term must be greater than zero. You entered " +term);
}

//Prompt user to enter calculation type
System.out.print("Enter Interest Calculation Type (1 – Simple, 2 – Monthly Compounded, 3 – Daily Compounded):");
type = input.nextInt();

switch(type)
{
case 1:System.out.println("Total calculated interest: "  +simple);
System.out.println("Total amount to be repaid: "  +repaidSimple);
break;
case 2:Sprintln("Total calculated interest: "  +monthlyCompound);
System.out.println("Total amount to be repaid: "  +repaidMonthly);
break;
case 3:System.out.println("Total calculated interest: "  +dailyCompound);
System.out.println("Total amount to be repaid: "  +repaidDaily);
break;
default: System.out.println("Calculation Type Error: You must select 1, 2 or 3. You entered " +type);
break;
}
}

}```

Here is the output I get
Enter Loan Amount: 0
Enter Yearly Interest Rate (1 to 100 percent): 100.1
Enter the Term (in months): 12
Data Error: Term must be greater than zero. You entered 12
Enter Interest Calculation Type (1 – Simple, 2 – Monthly Compounded, 3 – Daily Compounded):

As you can see thats the wrong error I need to be outputted and I cant figure out how to keep it from asking "Enter Interest Calculation Type (1 – Simple, 2 – Monthly Compounded, 3 – Daily Compounded):" when an error has occured!

This is how the output should look:
Enter loan amount: 0
Enter yearly interest rate (0 to 100 percent): 100.1
Enter the term (in months): 12
Data Error: Loan amount must be greater than zero. You entered '0'.
Data Error: Interest rate must be greater than or equal to zero and less than or equal to 100.
You entered '100.1'.

Thanks for the help!  Reply With Quote

3. ## Re: Boolean help

H  Reply With Quote