?? sixchoicepanel.java~9~
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package jpanel;import java.awt.*;import javax.swing.*;/** * Title: * Description: * Copyright: Copyright (c) 2001 * Company: * @author * @version 1.0 */public class SixChoicePanel extends JPanel { GridLayout gridLayout1 = new GridLayout(); public SixChoicePanel(String title, String[] buttonLabels) { try { jbInit(title,buttonLabels); } catch(Exception ex) { ex.printStackTrace(); } } void jbInit(String title,String[] buttonLabels) throws Exception { gridLayout1.setRows(3); gridLayout1.setColumns(2); this.setLayout(gridLayout1); setBorder(BorderFactory.createTitledBorder(title)); ButtonGroup group = new ButtonGroup(); JRadioButton option; int halfLength = buttonLabels.length/2; // Assumes even length for(int i=0; i<halfLength; i++) { option = new JRadioButton(buttonLabels[i]); group.add(option); add(option); option = new JRadioButton(buttonLabels[i+halfLength]); group.add(option); add(option); } }}?? 快捷鍵說明
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