![]() ![]() ![]() Methods inherited from class java.awt.Frame addNotify, getCursorType, getExtendedState, getFrames, getIconImage, getMaximizedBounds, getMenuBar, getState, getTitle, isResizable, isUndecorated, remove, removeNotify, setBackground, setCursor, setExtendedState, setMaximizedBounds, setMenuBar, setOpacity, setResizable, setShape, setState, setTitle, setUndecorated Has been added to the java.beans package. The current serialization support isĪppropriate for short term storage or RMI between applications running Serialized objects of this class will not be compatible withįuture Swing releases. In a multi-screen environment, you can create a JFrame See Using Top-Level Containers in The Java Tutorial. SetDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE).Īnd other features that root panes provide, To make the JFrame behave the same as a Frame Is to simply hide the JFrame when the user closes the window. Respond when the user attempts to close the window. Unlike a Frame, a JFrame has some notion of how to The default content pane will have a BorderLayoutįor details on adding, removing and setting the LayoutManager Attempting to set it to null will cause the JFrame To the corresponding methods of the ContentPane.įor example, you can add a child component to a frame as follows:Īnd the child will be added to the contentPane.Īlways be non-null. ![]() Methods of this class are overridden, so that they delegate calls This is different from the AWT Frame case.Īs a convenience, the add, remove, and setLayout The content pane provided by the root pane should,Īll the non-menu components displayed by the JFrame. Like all other JFC/Swing top-level containers,Ī JFrame contains a JRootPane as its only child. The JFrame class is slightly incompatible with Frame. You can find task-oriented documentation about using JFrame To exit the application on window close, add the following line into the code to set setDefaultCloseOperation.An extended version of that adds support for To prevent this, when the close button is pressed, the JFrame just gets hidden and will not exit the application fully. Because each window closing will cause the application to terminate by default. By default, if the JFrame was exiting/killing the application when it is closed, then this would cause countless issues. Remember that in a real-world application, there will be many windows, so many JFrames. This is because you haven’t specified what to do when the JFrame is closed. Why does my application still run after closing the main window? Question: Even after the JFrame is closed, the application is still running in the background. If you run the above code, you will have some questions. Even though the above code works, it is not perfect. ![]()
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