setFont ( ) method requires a Font object argument. Changing a JLabel's Font Font class from which creating an object that holds typeface and size information. setText( ) method changing the text in a JLAbel by using the Component class setText() method with the JLabel object and passing a String to itĬan also retrieve the text in a JLabel ( or other Component ) by using getText() method which will return the current stored String. The invalidate() and validate() methods are part of the Container class, and the repaint() method is part of the Component class. If you add or remove a component from a container after it has been made visible, you should also call the invalidate(), validate(), and repaint() methods, or else you will not see the results of your actions. The following statement removes greeting from aFrame: The counterpart to the add() method is the remove() method. JFrame aFrame = new JFrame("Third frame") tSize(FRAME_WIDTH, FRAME_HEIGHT) tVisible(true) tDefaultCloseOperation(JFrame.EXIT_ON_CLOSE) You then can add the greeting object to the JFrame object named aFrame using the add() method as follows: JLabel greeting = new JLabel("Good day") Example JLabel Code For example, you can create a JLabel named greeting that holds the words "Good day" by writing the following statement: JLabel(String text, int horizontalAlignment) creates a JLabel instance with the specified text and horizontal alignment. Instance with the specified text, image, and horizontal alignment. JLabel(String text, Icon icon, int horizontalAlignment) creates a JLabel JLabel(String text) creates a JLabel instance with the specified text. JLAbel( Icon image, int horizontalAlignment ) create a JLabel instance with the specified image and horizontal alignment JLAbel ( Icon Image ) create a JLAbel instance with the specified image Available constructors for the JLabel class JLabel () create a JLAbel instance with no image and with an empt string for the title. This component can be placed in a JFrame. Using the JLabel Class JLabel is a built-in Java Swing class that holds text that can be displayed Here's my coding so far.I want to be able to change what the JLabel says when clicking on one of the buttons for example : when clicking on UP i want it to say "Going Up!".Customizing a JFrame Appearance the icons and buttons are known as window decoration.īy default windows decoration are supplied by the operating systemĪ look and feel is the default appearance and behavior of any user interface. How To Change JLabel Text By Clicking On JButton Feb 25, 2015 Swing/AWT/SWT :: Adding Actionlistener To Jcombobox.Swing/AWT/SWT :: JMenu - Is This OK To Use MouseListener Over ActionListener.Swing/AWT/SWT :: How To Access Variable Outside ActionListener.Swing/AWT/SWT :: Adding ActionListener To 9 JButtons.Swing/AWT/SWT :: ActionPerformed And ActionListener On Netbeans Are Same?.Swing/AWT/SWT :: Same Code For Both ActionListener And MouseListener.Swing/AWT/SWT :: JButton Actionlistener Not Working?.Swing/AWT/SWT :: KeyAdapter And ActionListener.Swing/AWT/SWT :: How To Implement ActionListener.Swing/AWT/SWT :: Need To Add ActionListener.Java GUI ActionListener - Determine Factors Of Input Placed At Number Text Field.Changing JLabel Text From Anywhere In Program.How To Make JLabel Hyperlink Change Depending On JTextField.Swing/AWT/SWT :: How To Change Button Text And Actions In Input Dialog Box.Swing/AWT/SWT :: How To Change JLable Text By Pressing JButton.Swing/AWT/SWT :: Changing Text Of JLabel By Pressing A Button?.
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