Mega Code Archive
Get selected button from ButtonGroup
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import java.awt.Component;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
public class Main {
public static void main(String[] args) {
JFrame frame = new JFrame();
JPanel entreePanel = new JPanel();
final ButtonGroup entreeGroup = new ButtonGroup();
JRadioButton radioButton;
entreePanel.add(radioButton = new JRadioButton("A"));
radioButton.setActionCommand("A");
entreeGroup.add(radioButton);
entreePanel.add(radioButton = new JRadioButton("B"));
radioButton.setActionCommand("B");
entreeGroup.add(radioButton);
entreePanel.add(radioButton = new JRadioButton("C", true));
radioButton.setActionCommand("C");
entreeGroup.add(radioButton);
final JPanel condimentsPanel = new JPanel();
condimentsPanel.add(new JCheckBox("Ketchup"));
condimentsPanel.add(new JCheckBox("Mustard"));
condimentsPanel.add(new JCheckBox("Pickles"));
JPanel orderPanel = new JPanel();
JButton orderButton = new JButton("Place Order");
orderPanel.add(orderButton);
frame.setLayout(new GridLayout(3, 1));
frame.add(entreePanel);
frame.add(condimentsPanel);
frame.add(orderPanel);
orderButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
String entree = entreeGroup.getSelection().getActionCommand();
System.out.println(entree + " sandwich");
Component[] components = condimentsPanel.getComponents();
for (Component c : components) {
JCheckBox cb = (JCheckBox) c;
if (cb.isSelected())
System.out.println("With " + cb.getText());
}
}
});
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(300, 150);
frame.setVisible(true);
}
}
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