Find selected item of a JList and display it in real time

Question

I have a JList, where i am displaying some ID\'s. I want to capture the ID the user clicked and dis play it on a JLabel.

String sel         


        

Answer 1

Use a ListSelectionListener:

JList list = new JList(...);
list.addListSelectionListener(new ListSelectionListener() {
  public void valueChanged(ListSelectionEvent evt) {
    if (!evt.getValueIsAdjusting()) {
      // code here
    }
  }
});