如何将数据从GUI保存到阵列

Question

I need to create a java project for bank account for 100 clients with Id, name, Surname, and Deposit. However, I don't know how I can save data from GUI to arrays every time I press Save Button?

Answer 1

"I want to add a new account everytime I press the button "

• You should have your Account class already with the necessary fields and getters and setters

• In your GUI class you should have a List Map of Accounts . Forget an array, as they aren't dynamic. I'd preferably go with a Map but if you don't understand Map , it's a little bit harder to explain, so I'll start you off with a List

   public class GUI extends JFrame { List<Account> accounts = new ArrayList<>(); } 

• Then in your actionPerformed of your button listener, just gather the data from whatever source you're getting it from, ie text fields, and populate the Account data, then add the new Account to the list

   public void actionPerformed(ActionEvent e) { String name = nameTextFeild.getText(); String surname = surTextField.getText(); String id = idTextField.getText(); Account account = new Account(name, surname, id); accounts.add(account); }