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The Java Developers Almanac 1.4Order this book from Amazon. |
e768. Creating a JRadioButton Component// Create an action for each radio button Action action1 = new AbstractAction("RadioButton Label1") { // This method is called whenever the radio button is pressed, // even if it is already selected; this method is not called // if the radio button was selected programmatically public void actionPerformed(ActionEvent evt) { // Perform action } }; Action action2 = new AbstractAction("RadioButton Label2") { // See above public void actionPerformed(ActionEvent evt) { // Perform action } }; // Create the radio buttons using the actions JRadioButton b1 = new JRadioButton(action1); JRadioButton b2 = new JRadioButton(action2); // Associate the two buttons with a button group ButtonGroup group = new ButtonGroup(); group.add(b1); group.add(b2); // Neither radio button is selected; to select a radio button, // see e769 Selecting a JRadioButton Component in a Button Group
e770. Determining the Selected JRadioButton in a Button Group e771. Determining If a JRadioButton Component Is Selected e772. Adding an Icon to the Label of a JRadioButton Component e773. Customizing the Icons in a JRadioButton Component © 2002 Addison-Wesley. |