Thread: Formatting using Printf()

 
//import Scanner
import java.util.Scanner;
 
public class Program3{
 
     public static void main(String[] args) {
 
         //intiate the Scanner
         Scanner input; 
         input = new Scanner(System.in);
 
         //declare loan amount
         System.out.print("Enter Loan Amount: ");
         double loanAmount = input.nextDouble();
 
         //declare int NumOfYears
         System.out.print("Number Of Years: ");
         int NumOfYears = input.nextInt();
 
 
 
         //declare annual interest rate
         double AnnualInterestRate = 5;  // intital
 
          System.out.println("Interest Rate: \t Monthly Rate:\t    Total Payment: \t");
        //intial loop
    while (AnnualInterestRate <= 8) //test
    {
         //Monthly
         double MonthlyInterestRate = AnnualInterestRate/1200;
 
         //Calculate monthly payment
         double monthlyPayment = loanAmount * MonthlyInterestRate / (1 - (Math.pow(1 / (1 + MonthlyInterestRate), NumOfYears * 12)));
 
       //calculate total payment
         double totalPayment = monthlyPayment * 12 * NumOfYears;
 
         //ouput of total, monthly, annual
         System.out.print(AnnualInterestRate + ("          \t") + monthlyPayment + "   \t" + totalPayment);
         System.out.printf("%8.2f", AnnualInterestRate , "8.2f" , monthlyPayment, "%8.2f", totalPayment );
         System.out.println();
// change
 
         AnnualInterestRate += .125;
 
     } //while
     }//main
}// class

I'm really not sure what I'm doing wrong, I've read up on the printf() and formatting but just can't seem to get this to format right. It needs to come out to two decimal places and should stay in a 3 column output. Please any suggestions?

The printf() method takes a String followed by the values that replace the format Specs IN the string:

System.out.printf( "%8.2f %8.2f %8.2f", AnnualInterestRate, monthlyPayment, totalPayment );

Thank you man.

--- Update ---

Thank you man