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24 Αυγ 2012 · But of course there is no need to even subclass JPanel for something as simple as adding a JLabel. Overall, here's pretty much the simplest swing application: JFrame frame = new JFrame("Basic Swing");//Make a frame. frame.setSize(300, 300);//Give it a size.
public Sample() { JPanel p = new JPanel(); JLabel lab1 = new JLabel("User Name", JLabel.LEFT); p.setLayout(new FlowLayout()); p.add(lab1 = new JLabel("add JLabel")); } also you need to do what @Harry Joy suggested to add the add(p); statement otherwise the panel is still not added.
15 Απρ 2021 · JLabel (String s, Icon i, int align) : creates a new label with a string, an image and a specified horizontal alignment. Commonly used methods of the class are : getIcon () : returns the image that the label displays. setIcon (Icon i) : sets the icon that the label will display to image i.
With the JLabel class, you can display unselectable text and images. If you need to create a component that displays a string, an image, or both, you can do so by using or extending JLabel. If the component is interactive and has a certain state, use a button instead of a label.
26 Ιαν 2015 · JLabel green = new JLabel("Green", JLabel.CENTER); JLabel magenta = new JLabel("Magenta", JLabel.CENTER); JLabel orange = new JLabel("Orange", JLabel.CENTER); // add set properties and add panel to JFrame. black.setOpaque(true); black.setForeground(Color.black); black.setBackground(Color.white);
In each ConversionPanel, a JPanel instance — colored magenta — is used to ensure the proper size and position of the combo box. Each of these JPanel instances uses a top-to-bottom BoxLayout object (helped by an invisible space-filling component) to lay out the combo box.
6 Ιουλ 2019 · A JLabel is usually added to a JPanel, a JFrame, a JDialog or a JApplet: frame.add(label); dialog.add(label); panel.add(label); applet.getContentPane().add(label); Adding a JLabel to a container with a specific layout manager:
