Stuff

/*
 * Main.java
 *
 * Created on March 1, 2007, 5:43 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package lab05;
import javax.swing.*;
import java.text.*;

public class Main {
   // The main method required for an application program
   public static void main( String[] args ) {
     final int MAX_NUMBER = 7;
     Loan ln1 = null;   // Variable to hold an instance of the Loan class 
     Loan ln2 = null;   // Same as above
     Loan ln3 = null;   // Same
     Loan ln4 = null;   // Same
     Loan ln5 = null;   // Same
     Loan ln6 = null;   // Same
     Loan ln7 = null;   // Same
     
     Loan ln = null;  
     DecimalFormat prec2 = new DecimalFormat("$#.00");
     String borrowerNameStr = "";  	// Holds Borrower's name entered by user
     String loanIdStr = ""; 	   // Holds Loan's ID number as string, entered by user
     int loanId = 0;        	   // Loan's ID number as int
     String propCostStr = ""; 	   // Property cost as string, entered by user
     double propCost = 0.0;   	   // Property cost as double
     String downPaymentStr = "";   // Down payment as string, entered by user
     double downPayment = 0.0;     // Down paymnet  as double
     String numberOfYearsStr = ""; // Number of years for loan as string, entered by user
     int numberOfYears = 0;        // Number of years for loan as integer
     
     
     int count = 0;         // The number of Loans created
     String outputStr = ""; // String for output display to user
     String outputStr2 = "";// String for output display to user
     String msgStr = "";    // Holds message for display to user
     int resp = 0;          // User's response from showConfirmDialog method

     while (true) {   // Loop to input data on each Loan        
       count++;
           
       // Read in borrower name from user as a string
       borrowerNameStr = JOptionPane.showInputDialog("Enter Borrower name");

       // Read in loan ID number from user as a string
       loanIdStr = JOptionPane.showInputDialog("Enter loan ID number");
       // Convert from type String to type int
       loanId = Integer.parseInt(loanIdStr.trim());       

       // Read in property cost from user as a string
       propCostStr = JOptionPane.showInputDialog("Enter property cost");
       // Convert from type String to type double
       propCost = Double.parseDouble(propCostStr.trim());
       
       // Read in down payment from user as a string
       downPaymentStr = JOptionPane.showInputDialog("Enter down payment");
       // Convert from type String to type double
       downPayment = Double.parseDouble(downPaymentStr.trim());

       // Read in number of years for loan from user as a string
       numberOfYearsStr = JOptionPane.showInputDialog("Enter number of years for loan");
       // Convert from type String to type integer
       numberOfYears = Integer.parseInt(numberOfYearsStr.trim());	 

       // Create Loan instance
       ln = new Loan(borrowerName, loanId, propCost, downPayment, numberOfYears);
       
       // Assign new Loan object to next available Loan variable
       switch (count) {
           case 1:  ln1 = ln; break;
           case 2:  ln2 = ln; break;
           case 3:  ln3 = ln; break;
           case 4:  ln4 = ln; break;
           case 5:  ln5 = ln; break;
           case 6:  ln6 = ln; break;
           case 7:  ln7 = ln; break;
       }       
       outputStr += count + ". " + ln.toString() + "\n";             
    
       if (count < MAX_NUMBER) {
           msgStr = "\nMax number of allowed Loans is: " + MAX_NUMBER + "\nContinue?";
           
           resp = JOptionPane.showConfirmDialog(null, outputStr + msgStr, "Confirm",
                                                JOptionPane.YES_NO_OPTION,
                                                JOptionPane.QUESTION_MESSAGE);
           if (resp == JOptionPane.NO_OPTION)
              break;
       }
       else {
           msgStr = "Program cannot handle any more additional Loans.";
           JOptionPane.showMessageDialog(null, outputStr + msgStr, "Results",
                                         JOptionPane.INFORMATION_MESSAGE);
           break;           
       }       
     }//end while
     
     outputStr2 = "Loan list:\n";
     for (int i = 1; i <= count; i++){         
         switch (i) {
             case 1:  ln = ln1; break;
             case 2:  ln = ln2; break;
             case 3:  ln = ln3; break;
             case 4:  ln = ln4; break;
             case 5:  ln = ln5; break;
             case 6:  ln = ln6; break;
	     case 7:  ln = ln7; break;
         }
         outputStr2 += "\n" + i + ". " + ln.getBorrowerName() +
                 "\n    ID No: " + ln.getLoanId() +
                 "\n    Property Cost: " + prec2.format(ln.getPropertyCost()) +
                 "\n    Loan Amount: " + prec2.format(ln.getPropertyCost()-ln.getDownPayment()) +
                 "\n    Number Of Years: " + ln.getNumberOfYears() +
		 "\n    Annual Interest Rate: " + ln.getInterestRate() + "%" +
                 "\n    Loan Payment: " + prec2.format(ln.calculateMonthlyPayment()) + "\n";
     }
     JOptionPane.showMessageDialog(null, outputStr2, "Loan Summary",
                                         JOptionPane.INFORMATION_MESSAGE);
     
     System.exit(0);
   }
}