RePopulate form with the information what user just submitted.

Question

I have one form. That form has one submit button. I have to create a new button in that form say call "New button". When user submits that form it will display result page. That result page will have one back button. When I hit back button I can go back to that form again. After I go back to that form when I hit "New Button" the form field will fill up with the information what user just entered before submit. I am using JSP and Struts in my application. This functionality is basically need for the user so that user do not need to entered the same information again.
Can you please help me what I have to do for that?
Thank you very much for your help.

Answer 1

Well, in your program, do you have one Form, or do you create a new Form whenever it's needed (ie, when the program starts up, and when the Back button is pushed from the result page)?
If you have one Form (which is the best approach in my opinion), then it probably follows this general structure:
public class Form {
   public Form() {
      // Do some constructor work in here
   public void submit() {
      // This is probably called when the user clicks the Submit button
}... obviously there's a lot more stuff going on inside the class that I have listed right there, but what I meant by 'storing the values as fields' would actually be really simple to implement.
A field is:
either class or instance member variables. non-local variables. Field also includes static final constants. http://mindprod.com/jgloss/fields.html
In short, it's just a variable stored in your class.
I'm sure you already have text fields and buttons as fields in your form class, probably like this:
public class Form {
   private JTextField userNameField = new JTextField("Input User Name Here");
   private JButton submitButton = new JButton("Submit");
}And if you don't, then you should probably adjust your structure so you do. Anyways, to store the data the user has input, just create Objects to store them.
public class Form {
   private JTextField userNameField = new JTextField("Input User Name Here");
   private JButton submitButton = new JButton("Submit");
   private String userName = ""; // This is our 'name field.' It is set to whatever is in the userNameField when the submit method is invoked. It is what stores the user's name. In the refresh method, you can set the userNameField's text (via setText) to this value.
   // ...You could make a field for each thing you need to store, such as age, race, eye color, whatever.
To implement 'storing' and 'using' these fields is also simple. You'd just need to adjust your submit method, and provide a new method that we'll call refresh. Now, by refresh I am not referring to a browser's refresh button which refreshes the page- I just named it refresh because it 'refreshes' our Form with the data the user previously input.
public class Form {
   public void submit() {
      // Do submittal stuff
      userName = userNameField.getText(); // This line right here ensures that the user's name is 'stored.'
   public void refresh() {
      userNameField.setText(userName); // This line causes the userNameField to be 'refreshed' with the data previously submitted.
   }Hope that helps.