A demonstration of the WindowListener approach to closing JFrames : Frame « Swing JFC « Java

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Java » Swing JFC » Frame Screenshots  A demonstration of the WindowListener approach to closing JFrames     import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.JFrame; public class FrameClose2 {   public static void main(String[] args) {     JFrame mainFrame = new JFrame();     // Exit app when frame is closed.     mainFrame.addWindowListener(new WindowAdapter() {       public void windowClosing(WindowEvent ev) {         System.exit(0);       }     });     mainFrame.setSize(320, 240);     mainFrame.setVisible(true);   } }                                    Related examples in the same category 1.  The Swing Version of the Hello, World! Program 2.  Using anonymous inner classes 3.  No direct interaction with JRootPane 4.  How to center a frame or dialog 5.  React to frame close action 6.  Create a frame 7.  Draw on frame with keyboard 8.  Frame dialog data exchange 9.  Frame with components 10.  Default button for frame: press Enter to activate 11.  Frame Icon drawn by yourself 12.  Create a JFrame class in a thread-safe way 13.  Demo to show a way of having More Choices or Less Choices 14.  Frame Icon from gif 15.  FrameDemo:invoked from the event-dispatching thread 16.  Screen edge snapping 17.  Creating a Borderless Window 18.  Disabling the Close Button on a JFrame 19.  Exiting an Application When a JFrame Is Closed 20.  Use Component listener to ensure frame visibilities 21.  Drag and move a frame from its content area 22.  Setting the Icon for a Frame 23.  Removing the Title Bar of a Frame 24.  Setting the Bounds for a Maximized Frame 25.  Iconifies a frame; the maximized bits are not affected. 26.  Deiconifies a frame; the maximized bits are not affected. 27.  Hiding a Frame When Its Close Button Is Clicked 28.  Exiting an Application When a Frame Is Closed 29.  Getting All Created Frames in an Application 30.  Maximizes a frame; the iconified bit is not affected 31.  Making a Frame Non-Resizable: use setResizable(false) to freeze a frame's size. 32.  Determining When a Frame or Window Is Opened or Closed 33.  Determining When a Frame or Window Is Iconized or Maximized 34.  Determining When a Component Has Been Made Visible, Moved, or Resized 35.  Get the JFrame of a component 36.  Disable JFrame close button 37.  Handle JFrame window events 38.  Define the default close operation of a JFrame to EXIT_ON_CLOSE, application will exit by calling System.exit() 39.  Center a JFrame 40.  Creating Frames with a background image 41.  Preventing a Window from Gaining the Focus 42.  Create undecorated frame 43.  Make a JFrame always visible 44.  Maximize a JFrame 45.  Close a JFrame under condition 46.  Creating a Titleless and Borderless JFrame 47.  FrameDemo2.java shows off the window decoration features added in 1.4 48.  JFrame that closes when someone presses the ESC key 49.  Show the given frame as modal to the specified owner