Thread: Java Assignment Help

Hey guys this is my 1st time posting here but have browsed the Forum at times before I am going an introduction course to Java and have coded my latest program which is based on Student Loans the calculations within the program are correct but I seem to be having problems with the While Loop within the program running properly, here is what I've got so far

public class LoanPayments {
    // place constant declarations (static final) below.
    // e.g. 3% interest, 9% repayment, 5% pay rise and 10k theshold
        static final double INTEREST = 0.03, REPAID = 0.09, PAYRISE = 0.05, NET = 10000;  
    public static void main(String args[]) {
        double loans, prevloan, newloan, wages, net, interest, newlinterest=0, linterest=0, wagest=0, newwages=0, repaid=0, balance=0, newbalance=0, yrbal=0, year=1;
        // place all variable declarations here
 
        System.out.println(" Student Loan" );
        loans = UserInput.readDouble();
        // prompt and read the loan amount
 
        System.out.println (" Wages ");
        wages = UserInput.readDouble();
 
            interest =  loans * INTEREST;
            // add 3% to the loan
            net = wages - NET;
            // deduct 10k from the wages
            repaid = net * REPAID;
            // from the remaining wages calculate 9% repayment
            linterest = loans + interest;
            balance = linterest - repaid;
            // reapaid loan amount
            wagest = net;
            yrbal= balance * year;
            // sum up repayments and years so far
            System.out.println(" Year " + (int)year);
            MoneyOut.println(" Old Loan ", (int)loans);
            // produce output: current year, old loan, 
            MoneyOut.println(" Loans plus 3% interest ", linterest);
            // loan plus 3% interest, wages, 
            MoneyOut.println(" Wages ", (int)wages);
            MoneyOut.println(" Wages minus threshold ", wagest);
            //wages minus 10,000 pounds, repayment, new loan
            MoneyOut.println(" Repayment ", (int)repaid);
            MoneyOut.println(" New loan amount ", balance);
 
        while (newbalance>0) {
            // while loop starts here
            year++;
            prevloan = balance;
            newloan = prevloan;
            interest =  newloan * INTEREST;
            // add 3% to the loan
            newwages = wages + (wages * 5.0 /100.0);
            // calculate new wages by adding a pay rise of 5%
            net = newwages - NET;
            // deduct 10k from the wages
            repaid = net * REPAID;
            // from the remaining wages calculate 9% repayment
            //if (newwages <0) {
              //  repaid =0;
            //} 
            // (if the remaining wages are zero or less, repayment is zero)
            newlinterest = newloan + interest;
            newbalance = newlinterest - repaid;
            // reapaid loan amount
            wagest = net;
            yrbal= newbalance * year;
            // sum up repayments and years so far
 
            System.out.println(" Year " + (int)year);
            MoneyOut.println(" Old Loan ", (int)balance);
            // produce output: current year, old loan, 
            MoneyOut.println(" Loans plus 3% interest ", newlinterest);
            // loan plus 3% interest, wages, 
            MoneyOut.println(" Wages ", (int)newwages);
            MoneyOut.println(" Wages minus threshold ", wagest);
            //wages minus 10,000 pounds, repayment, new loan
            MoneyOut.println(" Repayment ", (int)repaid);
            MoneyOut.println(" New loan amount ", newbalance);
            if (year >=30)
            {
                System.out.println(0);
            }  // 'break' out of the 'while' loop if more than 30 years have passed
        }   // end of the 'while' loop, program leaves it when loan is 0 or less
 
            System.out.println(" It took you " +(int)year + 
            " years to repay the loan "); 
        // print out the number of year it took to repay the loan
 
            System.out.println(" The orginal loan was " + "£" + loans + 
            " but you had to pay back " + yrbal);
        // print out the original loan and the total amount paid back
 
            // When 'debugging' you can use the code below to allow 
            // the loop to run one year at a time. Take it out when
            // submitting to CourseMarker !!!
            // System.out.println("Press 'Enter' to continue");
            // UserInput.readString(); // waits for 'Enter' 
    } // end of main
 
} // end of class LoanPayments

Can anyone spot a reason why the Loop won't run properly the MoneyOut Class is a custom Class included with the program so is not the reason for the error.

define "won't run properly". Are you getting an exception? If so, please post the full exception text.