Saving Form Data From GUI

Question

I have a GUI which aims to save client's details (Name, Address and Phone No) for an estate agency. There are two types of client: Buyers and Sellers and am trying to get the clients details saved into the appropriate class depending on which client type was selected on the JFrame. I have two packages:
*uwePropertiesDomain
*uwePropertiesUInterface
uwePropertiesDomain contains the following classes:
*Buyer
*Seller
uwePropertiesUInterface contains the following class:
*uwePropertiesUI
I have written the following code for the submit button on the JFrame:
private void submitButtonActionPerformed(java.awt.event.ActionEvent evt)
    if (evt.getSource() == submitButton)
        if (((String)clientTypeBox.getSelectedItem()).equals("Buyer"))
            uwePropertiesDomain.Buyer buyer = new uwePropertiesDomain.Buyer();
            //String[] clientInfo;
            buyer.save(new String[]{nameField.getText() , addressField.getText(), phoneField.getText()});
        else
            uwePropertiesDomain.Seller seller = new uwePropertiesDomain.Seller();
            //String[] clientInfo;
            seller.save(new String[]{nameField.getText() , addressField.getText(), phoneField.getText()});
    } And the following in Buyer/Seller classes:
String[] clientInfo;    
public void save(String[] args)
   this.clientInfo = args;
}This all compiles, however, where is the data saved to? How would I go about searching for a client using their name?

Answer 1

In your class, define a List such as ArrayList (easier than an array--you don't need to know the number of objects ahead of time).
List buyerList = new ArrayList();
List sellerList = new ArrayList();Then, in submitButtonActionPerformed, say:
uwePropertiesDomain.Buyer buyer = new uwePropertiesDomain.Buyer();
buyer.save(new String[]{nameField.getText() , addressField.getText(), phoneField.getText()});
buyerList.add(buyer); // ADD THISAnd similar for seller.
You may want a Buyer constructor that takes those three values, instead of having to call "save" separately.
Now, you'll have a list of buyers and sellers, and you can perform searches on them (look up Comparable, redefining .equals/.hashCode, Comparator, etc.).