![JOptionPane.showMessageDialog(null,"you chose recursive");
}
}
}
});
// create sub-panel for radio buttons
JPanel radioPanel = new JPanel();
radioPanel.add(iterative);
radioPanel.add(recursive);
/*
class thehandler implements ActionListener{
public void actionPerformed(ActionEvent e) {
if(e.getSource()==iterative && e.getSource()==compute){
System.out.println("you chose iterative");
}
else if(e.getSource()==recursive && e.getSource()==compute){
System.out.println("you chose recursive");
}
}
}
******************************/
}
public static void main(String[]args){
GUI object = new GUI();
object.setVisible(true);
object.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}](https://image.slidesharecdn.com/iamgettingasyntaxerror-230709135543-b077ab22/85/I-am-getting-a-syntax-error-I-cant-seem-to-find-whats-causing-t-pdf-3-320.jpg)
![{
JOptionPane.showMessageDialog(null,"you chose recursive");
}
}
});
// create sub-panel for radio buttons
JPanel radioPanel = new JPanel();
radioPanel.add(iterative);
radioPanel.add(recursive);
}
public static void main(String[]args){
GUI object = new GUI();
object.setVisible(true);
object.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}](https://image.slidesharecdn.com/iamgettingasyntaxerror-230709135543-b077ab22/85/I-am-getting-a-syntax-error-I-cant-seem-to-find-whats-causing-t-pdf-6-320.jpg)
I am getting a syntax error. I cant seem to find whats causing t.pdf
- 1. I am getting a syntax error. I can't seem to find what's causing this progrm even though I correct what it's asking me to do. It seems to add even more errors. 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.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JRadioButton; import javax.swing.JTextField; public class GUI extends JFrame { // create required GUI radios, labels, textfields and buttons private JRadioButton iterative; private JRadioButton recursive; private JLabel entern; private JLabel result; private JLabel efficiency; private JTextField t1; private JTextField t2; private JTextField t3; private JButton compute; private ButtonGroup radios = new ButtonGroup(); private ButtonGroup candidates = new ButtonGroup(); // create constructor for GUI public GUI(){ super("Project 3"); setLayout (new GridLayout(6,2)); setSize(275,250); // initializing buttons and etc and adding them iterative = new JRadioButton("Iterative");
- 2. add(iterative); recursive = new JRadioButton("Recursive"); add(recursive); // add radiobuttons to group so only one selection is possible radios.add(iterative); radios.add(recursive); entern = new JLabel("Enter n:"); add(entern); result = new JLabel("Result:"); add(result); efficiency = new JLabel("Efficiency:"); add(efficiency); t1 = new JTextField(); add(t1); compute = new JButton("Compute"); add(compute); t2 = new JTextField(); add(t2); t3 = new JTextField(); add(t3); /* thehandler handler = new thehandler(); iterative.addActionListener(handler); recursive.addActionListener(handler); compute.addActionListener(handler); ****************************/ compute.addActionListener(new ActionListener (){ public void actionPerformed(ActionEvent b){ computeactionPerformed(b); private void computeactionPerformed(ActionEvent b){ if ((iterative.isSelected(true))){ JOptionPane.showMessageDialog(null,"you chose iterative"); } else if (recursive.isSelected(true)){
- 3. JOptionPane.showMessageDialog(null,"you chose recursive"); } } } }); // create sub-panel for radio buttons JPanel radioPanel = new JPanel(); radioPanel.add(iterative); radioPanel.add(recursive); /* class thehandler implements ActionListener{ public void actionPerformed(ActionEvent e) { if(e.getSource()==iterative && e.getSource()==compute){ System.out.println("you chose iterative"); } else if(e.getSource()==recursive && e.getSource()==compute){ System.out.println("you chose recursive"); } } } ******************************/ } public static void main(String[]args){ GUI object = new GUI(); object.setVisible(true); object.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); }
- 4. } Solution I have Change in code . No it's working without any compliantion error. 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.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JRadioButton; import javax.swing.JTextField; public class GUI extends JFrame { // create required GUI radios, labels, textfields and buttons private JRadioButton iterative; private JRadioButton recursive; private JLabel entern; private JLabel result; private JLabel efficiency; private JTextField t1; private JTextField t2; private JTextField t3; private JButton compute; private ButtonGroup radios = new ButtonGroup(); private ButtonGroup candidates = new ButtonGroup(); // create constructor for GUI public GUI() { super("Project 3"); setLayout (new GridLayout(6,2)); setSize(275,250);
- 5. // initializing buttons and etc and adding them iterative = new JRadioButton("Iterative"); add(iterative); recursive = new JRadioButton("Recursive"); add(recursive); // add radiobuttons to group so only one selection is possible radios.add(iterative); radios.add(recursive); entern = new JLabel("Enter n:"); add(entern); result = new JLabel("Result:"); add(result); efficiency = new JLabel("Efficiency:"); add(efficiency); t1 = new JTextField(); add(t1); t2 = new JTextField(); add(t2); t3 = new JTextField(); add(t3); compute = new JButton("Compute"); add(compute); compute.addActionListener(new ActionListener (){ public void actionPerformed(ActionEvent b) { if (iterative.isSelected()) { JOptionPane.showMessageDialog(null,"you chose iterative"); } else if (recursive.isSelected())
- 6. { JOptionPane.showMessageDialog(null,"you chose recursive"); } } }); // create sub-panel for radio buttons JPanel radioPanel = new JPanel(); radioPanel.add(iterative); radioPanel.add(recursive); } public static void main(String[]args){ GUI object = new GUI(); object.setVisible(true); object.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } }