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Thread: Boolean help

  1. #1
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    Default 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!


  2. #2
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    Default Re: Boolean help

    H
    Last edited by javaiscool; October 26th, 2013 at 03:02 AM. Reason: You can use [noparse] to ignore BBcode parsing

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