In my swing program I have a JTextField and a JButton. I would like for, once the user presses the "enter" key, the actionListener of the JButton runs. How would I do this? Thanks in advance.
JRootPane has a method setDefaultButton(JButton button) that will do what you want. If your app is a JFrame, it implements the RootPaneContainer interface, and you can get the root pane by calling getRootPane() on the JFrame, and then call setDefaultButton on the root pane that was returned. The same technique works for JApplet, JDialog or any other class that implements RootPaneContainer.