Urgent array help needed! come get some duke points

Question

this program keeps track of rentals for a shop. Other methods and classes not shown (like Customer, Transaction classes) are also in this program. Every item (created with a constructor in Item class) can hold an array of up to 20 transactions; part of a Transaction object is a rental total, based on a number of rental days * specific rental price for that item rented (backhoe, edger, etc.) If the user presses "t" for total amount of transactions, the following method is called, which calls the getTotalPrice() in another class called Item. My problem here is that even if I enter in transaction amounts, when I press "t", the program just quits, not producing the report and returning me to the main class. I have been over it with the debugger and I am still lost. Below is some selected code; I hope it is sufficient. Please let me know if I need to put up more
//main
String input = JOptionPane.showInputDialog(null, "Enter a rental transaction (x)" +
                                                  "\nAdd a customer (c)" +
                                                  "\nAdd an item (i)" +
                                                  "\nReport on a specific item (r)" +
                                                  "\nReport on total dollar amounts of rentals for all items (t)" +
                                                  "\nReport on total rentals for a specific customer (s)" +
                                                  "\nStrike cancel to exit from the program");
          //big huge while
          while (input != null){
               if (input.equals("x")){
                    rentalTrans();
               }//if
               if (input.equals("c")){
                    addCustomer();
               }//if
               if (input.equals("i")){
                    addItem();
               }//if
               if (input.equals("r")){
                    specificItemReport();
               }//if
               if (input.equals("t")){
                    allItemReport();
               }//if
               if (input.equals("s")){
                    customerReport();
               }//if
               input = JOptionPane.showInputDialog(null, "Enter a rental transaction (x)" +
                         "\nAdd a customer (c)" +
                         "\nAdd an item (i)" +
                         "\nReport on a specific item (r)" +
                         "\nReport on total dollar amounts of rentals for all items (t)" +
                         "\nReport on total rentals for a specific customer (s)" +
                         "\nStrike cancel to exit from the program");
//allItemReport()
public static void allItemReport(){ //menu item t
          Item temp = null;
          for (int index = 0; index < items.length; index++){
               temp = items[index];
          }//for
          JOptionPane.showMessageDialog(null, "Total rental transactions to date amount to: $" + temp.getTotalPrice());
//Item Class
public String getTotalPrice() {
          double total = 0;
          String output = "";
          for (int i = 0; i < trans.length; i++) {
               if (trans[i] == null) {
                    if (i == 0) {
                         output = "There are currently no transactions.";
                    }// if
                    break;
               }// if
               else{
               total += getPerDayRentalPrice();
               }//else
          }// for
          output+= total;
          return output;
     }//getTotalPrice

Answer 1

Don't flag your questions as urgent. It's rude. Also don't think that waving with a couple of worthless Dukes is going to get you better/quicker help.
The reason I respond to your question is because you have explained your problem well and used code tags.
Try this:class Main {
    public static void main (String[] args) {
        String message = "Enter a rental transaction (x)\nAdd a customer (c)" +
            "\nAdd an item (i)\nReport on a specific item (r)\nReport on total "+
            "dollar amounts of rentals for all items (t)\nReport on total rentals"+
            " for a specific customer (s)\nStrike cancel to exit from the program";
        String input = JOptionPane.showInputDialog(null, message);
        while(input != null){
            if (input.equals("x")) rentalTrans();
            else if (input.equals("c")) addCustomer();
            else if (input.equals("i")) addItem();
            else if (input.equals("r")) specificItemReport();
            else if (input.equals("t")) allItemReport();
            else if (input.equals("s")) customerReport();
            else System.out.println("Invalid option!");
            input = JOptionPane.showInputDialog(null, message);
        System.out.println("Bye!");
    // the rest of your methods ...
}