Swing Curley Brackets Problem

Hi all, I decided to have a go at writing a gui for today for a quiz program, in swing, and I can't get my head around the errors I've tried every combination of extra brackets possible and none seem to many any difference. I Just want the gui to appear for now, but i'm getting this error

Quote:

---

g@(gizywig) javac test.java
test.java:20: '{' expected
public class GuiQuiz()
^
test.java:57: '}' expected
^
2 errors

---

and I cant for the devil of me work it out, if someone could point me in the right direction I would be very grateful. here's my source code:

Code:

---

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class GuiQuiz extends JFrame
{
       
        private JLabel MenuLabel;
        private JLabel QuestionsLabel;
        private JTextArea Display;
        private JScrollPane jScrollPane1;
        private JTextArea jTextArea2;
        private JScrollPane jScrollPane2;
        private JButton BeginQuiz;
        private JPanel contentPane;

        public class GuiQuiz()
        {
       
                setTitle("SwingQuiz");
                setLocation(new Point(2, 5));
                setSize(new Dimension(471, 535));
                MenuLabel.setBounds(75,11,80,18);
                MenuLabel = new JLabel();
                QuestionsLabel = new JLabel();
                Display = new JTextArea();
                jScrollPane1 = new JScrollPane();
                jTextArea2 = new JTextArea();
                jScrollPane2 = new JScrollPane();
                BeginQuiz = new JButton();
                contentPane = (JPanel)this.getContentPane();
                MenuLabel.setText("Menu Selection");
                QuestionsLabel.setText("Questions");
                BeginQuiz.setText("Begin Quiz");
                jScrollPane1.setViewportView(Display);
                jScrollPane2.setViewportView(jTextArea2);
                contentPane.setLayout(null);
                contentPane.MenuLabel.setBounds(75,11,80,18);
                contentPane.QuestionsLabel.setBounds(270,13,60,18);
                contentPane.jScrollPane1.setBounds(228,40,214,265);
                contentPane.jScrollPane2.setBounds(29,341,403,160);
                contentPane.BeginQuiz.setBounds(58,36,133,42);

this.setVisible(true);
}
public static void main(String args[])
{
new GuiQuiz();
}
}

---

thanks alot mr.gizm0

Code:

---

public class GuiQuiz {}
        {

---

:| are you sure you can use that syntax?

Quote:

---

g@(gizywig) javac test2.java
test2.java:17: ';' expected
public test2 GuiQuiz{}
^
1 error

---

thanks for trying to help me anyway :)

This compiles fine for me... :confused:

Code:

---

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class GuiQuiz extends JFrame
{
       
        private JLabel MenuLabel;
        private JLabel QuestionsLabel;
        private JTextArea Display;
        private JScrollPane jScrollPane1;
        private JTextArea jTextArea2;
        private JScrollPane jScrollPane2;
        private JButton BeginQuiz;
        private JPanel contentPane;

        public class GuiQuiz {}
        {
       
                setTitle("SwingQuiz");
                setLocation(new Point(2, 5));
                setSize(new Dimension(471, 535));
                MenuLabel.setBounds(75,11,80,18);
                MenuLabel = new JLabel();
                QuestionsLabel = new JLabel();
                Display = new JTextArea();
                jScrollPane1 = new JScrollPane();
                jTextArea2 = new JTextArea();
                jScrollPane2 = new JScrollPane();
                BeginQuiz = new JButton();
                contentPane = (JPanel)this.getContentPane();
                MenuLabel.setText("Menu Selection");
                QuestionsLabel.setText("Questions");
                BeginQuiz.setText("Begin Quiz");
                jScrollPane1.setViewportView(Display);
                jScrollPane2.setViewportView(jTextArea2);
                contentPane.setLayout(null);
                contentPane.MenuLabel.setBounds(75,11,80,18);
                contentPane.QuestionsLabel.setBounds(270,13,60,18)  ;
                contentPane.jScrollPane1.setBounds(228,40,214,265)  ;
                contentPane.jScrollPane2.setBounds(29,341,403,160)  ;
                contentPane.BeginQuiz.setBounds(58,36,133,42);

                this.setVisible(true);
        }
                public static void main(String args[])
                {
                        new GuiQuiz();
                }
        }

---

very strange, I still can't get it to work ;/ thanks anyway

Hmmmm. Are you using the JDK to compile this?

Sorry. Brainfade. Try this...

Code:

---

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class GuiQuiz extends JFrame
{
       
        private JLabel MenuLabel;
        private JLabel QuestionsLabel;
        private JTextArea Display;
        private JScrollPane jScrollPane1;
        private JTextArea jTextArea2;
        private JScrollPane jScrollPane2;
        private JButton BeginQuiz;
        private JPanel contentPane;

        GuiQuiz ()
        {
                setTitle("SwingQuiz");
                setLocation(new Point(2, 5));
                setSize(new Dimension(471, 535));
                MenuLabel.setBounds(75,11,80,18);
                MenuLabel = new JLabel();
                QuestionsLabel = new JLabel();
                Display = new JTextArea();
                jScrollPane1 = new JScrollPane();
                jTextArea2 = new JTextArea();
                jScrollPane2 = new JScrollPane();
                BeginQuiz = new JButton();
                contentPane = (JPanel)this.getContentPane();
                MenuLabel.setText("Menu Selection");
                QuestionsLabel.setText("Questions");
                BeginQuiz.setText("Begin Quiz");
                jScrollPane1.setViewportView(Display);
                jScrollPane2.setViewportView(jTextArea2);
                contentPane.setLayout(null);
                contentPane.MenuLabel.setBounds(75,11,80,18);
                contentPane.QuestionsLabel.setBounds(270,13,60,18);
                contentPane.jScrollPane1.setBounds(228,40,214,265);
                contentPane.jScrollPane2.setBounds(29,341,403,160);
                contentPane.BeginQuiz.setBounds(58,36,133,42);

                this.setVisible(true);
        }
        public static void main(String args[])
        {
                new GuiQuiz();
        }
}

---

I am indeed, I selected to install it when I installed slackware linux.

Try the code I just posted above there... that gets a lot closer to compiling with javac for me ;)

still not working, but thanks again lol, is this correct "contentPane.jScrollPane2.setBounds" i tried what you suggested and i got alot of errors which had ^'s point at contentPane so I removed contentPane and then it compiled from that I try and run and I get

Quote:

---

g@(gizywig) java GuiQuiz
Exception in thread "main" java.lang.NullPointerException
at GuiQuiz.<init>(GuiQuiz.java:22)
at GuiQuiz.main(GuiQuiz.java:47)

---

cat -n reveals 22 is

Quote:

---

MenuLabel.setBounds(75,11,80,18);

---

and 47 is

Quote:

---

new GuiQuiz();

---

lol this is a nightmare, thank you so much for spending your time helping me.

Im not sure what the trouble was here, but this:

Code:

---

contentPane.MenuLabel.setBounds(75,11,80,18);
contentPane.QuestionsLabel.setBounds(270,13,60,18)  ;
contentPane.jScrollPane1.setBounds(228,40,214,265)  ;
contentPane.jScrollPane2.setBounds(29,341,403,160)  ;
contentPane.BeginQuiz.setBounds(58,36,133,42);

---

implies that the components are properties of the
contentpane, which they are not.

I removed those and shifted the component creation around a little, and now
it works,..... well it compiles ans displays ... :)

Code:

---

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class GuiQuiz
    extends JFrame {

  private JLabel MenuLabel=new JLabel();
  private JLabel QuestionsLabel=new JLabel();
  private JTextArea Display;
  private JScrollPane jScrollPane1=new JScrollPane();
  private JTextArea jTextArea2= new JTextArea();
  private JScrollPane jScrollPane2= new JScrollPane();
  private JButton BeginQuiz= new JButton();


  public GuiQuiz() {
    setTitle("SwingQuiz");
    setLocation(new Point(2, 5));
    setSize(new Dimension(471, 535));
    MenuLabel.setBounds(75, 11, 80, 18);

    MenuLabel.setText("Menu Selection");
    QuestionsLabel.setText("Questions");
    BeginQuiz.setText("Begin Quiz");
    jScrollPane1.setViewportView(Display);
    jScrollPane2.setViewportView(jTextArea2);
    getContentPane().setLayout(null);
    getContentPane().add(MenuLabel);
    getContentPane().add(jScrollPane1);
    getContentPane().add(jScrollPane2);
    getContentPane().add(BeginQuiz);

    MenuLabel.setBounds(75, 11, 80, 18);
    QuestionsLabel.setBounds(270, 13, 60, 18);
    jScrollPane1.setBounds(228, 40, 214, 265);
    jScrollPane2.setBounds(29, 341, 403, 160);
    BeginQuiz.setBounds(58, 36, 133, 42);

    this.setVisible(true);
  }

  public static void main(String args[]) {
    new GuiQuiz();
  }
}

---

:) thanks for your help sjalle works great now, I guess I just confused myself or something.
thanks again,

mr.gizm0