我们可以在 Java 中如何水平排列 JRadioButtons?\n
JRadioButton 是 JToggleButton 的子类,它是一个可以“选中”或“取消选中”的二态按钮。与复选框不同的是,单选按钮与一个组关联,并且一个组中只能选中一个单选按钮,可以使用ButtonGroup 类来实现这一点。选中组中的单选按钮时,组中任何其他先前选中的单选按钮都会取消选择。我们可以通过使用BoxLayout. 来水平或垂直排列单选按钮。
示例
import java.awt.*; import javax.swing.*; public class HorizontalRadioButtonsTest extends JPanel { public HorizontalRadioButtonsTest(){ JRadioButton jrb1 = new JRadioButton(" RB1"); JRadioButton jrb2 = new JRadioButton(" RB2"); JRadioButton jrb3 = new JRadioButton(" RB3"); JRadioButton jrb4 = new JRadioButton(" RB4"); JRadioButton jrb5 = new JRadioButton(" RB5"); Box box1 = Box.createHorizontalBox(); box1.add(jrb1); box1.add(jrb2); box1.add(jrb3); box1.add(jrb4); box1.add(jrb5); JRadioButton jrb6 = new JRadioButton(" RB6"); JRadioButton jrb7 = new JRadioButton(" RB7"); JRadioButton jrb8 = new JRadioButton(" RB8"); JRadioButton jrb9 = new JRadioButton(" RB9"); JRadioButton jrb10 = new JRadioButton(" RB10"); Box box2 = Box.createHorizontalBox(); box2.add(jrb6); box2.add(jrb7); box2.add(jrb8); box2.add(jrb9); box2.add(jrb10); JRadioButton jrb11 = new JRadioButton(" RB11"); JRadioButton jrb12 = new JRadioButton(" RB12"); JRadioButton jrb13 = new JRadioButton(" RB13"); JRadioButton jrb14 = new JRadioButton(" RB14"); JRadioButton jrb15 = new JRadioButton(" RB15"); Box box3 = Box.createHorizontalBox(); box3.add(jrb11); box3.add(jrb12); box3.add(jrb13); box3.add(jrb14); box3.add(jrb15); JRadioButton jrb16 = new JRadioButton(" RB16"); JRadioButton jrb17 = new JRadioButton(" RB17"); JRadioButton jrb18 = new JRadioButton(" RB18"); JRadioButton jrb19 = new JRadioButton(" RB19"); JRadioButton jrb20 = new JRadioButton(" RB20"); Box box4 = Box.createHorizontalBox(); box4.add(jrb16); box4.add(jrb17); box4.add(jrb18); box4.add(jrb19); box4.add(jrb20); setLayout(new GridLayout(5, 1)); add(box1); add(box2); add(box3); add(box4); } public static void main(String[] args) { JFrame frame = new JFrame("HorizontalRadioButtons Test"); frame.add(new HorizontalRadioButtonsTest()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setLocationRelativeTo(null); frame.setSize(375, 250); frame.setVisible(true); } }
输出
广告