Java

JAVA GUI Prob: Components only appear when frame edge clicked.

Please support our Java advertiser: Programming Forums - DaniWeb Sister Site

•

Join Date: Jun 2009

Posts: 9

Reputation: einjelle is an unknown quantity at this point

Solved Threads: 0

einjelle

Offline

Newbie Poster

JAVA GUI Prob: Components only appear when frame edge clicked.

Sep 20th, 2009

This is really frustrating.
Whenever I run this, a blank window frame appears
The components only appear when I click the edge of the frame.

Please check if I did something wrong:

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
import javax.swing.*;
import java.awt.*;
 
 
/**
 * 
 */
 
 
public class FFGen{
 
 
	public void First(){
 
		/**
		 * @param args
		 */
		JLabel pleaseChooseFFType;
		String[] FlipflopTypes = {"JK", "RS", "D", "T"};; 
		JList FlipflopList;
 
		JLabel pleaseChooseFFNum;
		ButtonGroup FlipflopNumberGroup;
		JRadioButtonMenuItem oneFlipflop;
		JRadioButtonMenuItem twoFlipflop;
 
		JLabel pleaseCheck;
		JCheckBox oneInput;
		JCheckBox oneOutput;
 
		JButton next;
 
		JFrame first;
		JPanel firstConLeft;
		JPanel firstConRight;
 
		FlipflopList = new JList(FlipflopTypes);
		FlipflopList.setVisibleRowCount(1);
		JScrollPane scroller = new JScrollPane(FlipflopList);
 
		pleaseChooseFFType = new JLabel("Type of Flipflop:");
		oneFlipflop = new JRadioButtonMenuItem ("1");
		twoFlipflop = new JRadioButtonMenuItem ("2");
 
		pleaseChooseFFNum = new JLabel("Number of Flipflops:");
		FlipflopNumberGroup = new ButtonGroup();
		FlipflopNumberGroup.add(oneFlipflop);
		FlipflopNumberGroup.add(twoFlipflop);
 
		pleaseCheck = new JLabel("There is an:");
		oneInput = new JCheckBox ("Input");
		oneOutput = new JCheckBox ("Output");
 
		next = new JButton ("Next");
 
		first =  new JFrame();
		first.setSize(250,235);
		first.setVisible(true);
 
		firstConLeft = new JPanel();
		firstConRight = new JPanel();
		firstConRight.setLayout(new GridLayout(9,1,0,0));
		firstConRight.add(pleaseChooseFFType);
		firstConRight.add(scroller);
		firstConRight.add(pleaseChooseFFNum);
		firstConRight.add(oneFlipflop);
		firstConRight.add(twoFlipflop);
		firstConRight.add(pleaseCheck);
		firstConRight.add(oneInput);
		firstConRight.add(oneOutput);
		firstConRight.add(next);
 
		JPanel Empty = new JPanel();
		Empty.setLayout(new GridLayout(1,2));
		Empty.add(firstConLeft);
		Empty.add(firstConRight);
		first.add(Empty);
	}
 
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		FFGen gui = new FFGen();
		gui.First();
	}
 
}
import javax.swing.*;
import java.awt.*;


/**
 * 
 */


public class FFGen{
	
	
	public void First(){
		
		/**
		 * @param args
		 */
		JLabel pleaseChooseFFType;
		String[] FlipflopTypes = {"JK", "RS", "D", "T"};; 
		JList FlipflopList;
		
		JLabel pleaseChooseFFNum;
		ButtonGroup FlipflopNumberGroup;
		JRadioButtonMenuItem oneFlipflop;
		JRadioButtonMenuItem twoFlipflop;
		
		JLabel pleaseCheck;
		JCheckBox oneInput;
		JCheckBox oneOutput;
		
		JButton next;
		
		JFrame first;
		JPanel firstConLeft;
		JPanel firstConRight;
	
		FlipflopList = new JList(FlipflopTypes);
		FlipflopList.setVisibleRowCount(1);
		JScrollPane scroller = new JScrollPane(FlipflopList);
		
		pleaseChooseFFType = new JLabel("Type of Flipflop:");
		oneFlipflop = new JRadioButtonMenuItem ("1");
		twoFlipflop = new JRadioButtonMenuItem ("2");
		
		pleaseChooseFFNum = new JLabel("Number of Flipflops:");
		FlipflopNumberGroup = new ButtonGroup();
		FlipflopNumberGroup.add(oneFlipflop);
		FlipflopNumberGroup.add(twoFlipflop);
		
		pleaseCheck = new JLabel("There is an:");
		oneInput = new JCheckBox ("Input");
		oneOutput = new JCheckBox ("Output");
		
		next = new JButton ("Next");
		
		first =  new JFrame();
		first.setSize(250,235);
		first.setVisible(true);
		
		firstConLeft = new JPanel();
		firstConRight = new JPanel();
		firstConRight.setLayout(new GridLayout(9,1,0,0));
		firstConRight.add(pleaseChooseFFType);
		firstConRight.add(scroller);
		firstConRight.add(pleaseChooseFFNum);
		firstConRight.add(oneFlipflop);
		firstConRight.add(twoFlipflop);
		firstConRight.add(pleaseCheck);
		firstConRight.add(oneInput);
		firstConRight.add(oneOutput);
		firstConRight.add(next);
		
		JPanel Empty = new JPanel();
		Empty.setLayout(new GridLayout(1,2));
		Empty.add(firstConLeft);
		Empty.add(firstConRight);
		first.add(Empty);
	}
	
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		FFGen gui = new FFGen();
		gui.First();
	}

}

Thank you.

•

Join Date: Jan 2008

Posts: 3,833

Reputation: VernonDozier has a reputation beyond repute

Solved Threads: 503

VernonDozier VernonDozier is offline

Offline

Senior Poster

Re: JAVA GUI Prob: Components only appear when frame edge clicked.

Sep 20th, 2009

It shows up correctly for me without having to click anything. Often, if you need to click, move, resize, or maximize/minimize something for it to show up, you can solve it by using the validate () from the Container class.

http://java.sun.com/javase/6/docs/ap...html#validate()

But again, I did not have to do this. I was able to see your GUI without doing anything.

•

Join Date: Jun 2009

Posts: 9

Reputation: einjelle is an unknown quantity at this point

Solved Threads: 0

einjelle

Offline

Newbie Poster

Re: JAVA GUI Prob: Components only appear when frame edge clicked.

Sep 21st, 2009

•

Originally Posted by VernonDozier

It shows up correctly for me without having to click anything. Often, if you need to click, move, resize, or maximize/minimize something for it to show up, you can solve it by using the validate () from the Container class.

http://java.sun.com/javase/6/docs/ap...html#validate()

But again, I did not have to do this. I was able to see your GUI without doing anything.

I know.. It's weird..
Thanks.. I'll try that now.

Enter My Dumpsite

•

Join Date: Nov 2008

Posts: 332

Reputation: quuba is on a distinguished road

Solved Threads: 54

quuba

Offline

Posting Whiz

Re: JAVA GUI Prob: Components only appear when frame edge clicked.

Sep 21st, 2009

Based on the swing Sun example:

 Help with Code Tags 
 java Syntax (Toggle Plain Text) 
public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
 
            public void run() {
                //FFGen gui = new FFGen(); 
                new FFGen();
            }
        });
    }
public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {

            public void run() {
                //FFGen gui = new FFGen(); 
                new FFGen();
            }
        });
    }

Write constructor for FFGen:

 Help with Code Tags 
 java Syntax (Toggle Plain Text) 
public FFGen() {
        First();
    }
public FFGen() {
        First();
    }

Under Windows XP I have no problem. Same as VernonDozier.
What is your Operating System?

•

Join Date: Jun 2009

Posts: 9

Reputation: einjelle is an unknown quantity at this point

Solved Threads: 0

einjelle

Offline

Newbie Poster

Re: JAVA GUI Prob: Components only appear when frame edge clicked.

Sep 22nd, 2009

•

Originally Posted by quuba

based on the swing sun example:
Help with Code Tags

java Syntax (Toggle Plain Text)
public static void main(string[] args) {
        //schedule a job for the event-dispatching thread:
        //creating and showing this application's gui.
        Javax.swing.swingutilities.invokelater(new runnable() {
 
            public void run() {
                //ffgen gui = new ffgen(); 
                new ffgen();
            }
        });
    }
public static void main(string[] args) { //schedule a job for the event-dispatching thread: //creating and showing this application's gui. Javax.swing.swingutilities.invokelater(new runnable() { public void run() { //ffgen gui = new ffgen(); new ffgen(); } }); }
write constructor for ffgen:
Help with Code Tags

java Syntax (Toggle Plain Text)
public ffgen() {
        first();
    }
public ffgen() { first(); }
under windows xp i have no problem. Same as vernondozier.
What is your operating system?

i am also using xp.
I really can't understand why that happens.i've done other gui interfaces before and they run just fine.
But i just can't figure this one out.

I asked a friend of mine to run it in his computer, and he gets the same result as mine.

Enter My Dumpsite

•

Join Date: Jan 2008

Posts: 3,833

Reputation: VernonDozier has a reputation beyond repute

Solved Threads: 503

VernonDozier VernonDozier is offline

Offline

Senior Poster

Re: JAVA GUI Prob: Components only appear when frame edge clicked.

Sep 22nd, 2009

Did adding validate () not do anything?

Try moving lines 57 and 58 from where they are to the BOTTOM of the function. Then add:

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
first.validate ();
first.validate ();

at the very bottom of the function. See if that makes a difference. I'm not sure it will, but it's worth a shot.

•

Join Date: Jun 2009

Posts: 9

Reputation: einjelle is an unknown quantity at this point

Solved Threads: 0

einjelle

Offline

Newbie Poster

Re: JAVA GUI Prob: Components only appear when frame edge clicked.

Sep 22nd, 2009

•

Originally Posted by VernonDozier

Did adding validate () not do anything?

Try moving lines 57 and 58 from where they are to the BOTTOM of the function. Then add:
Help with Code Tags

Java Syntax (Toggle Plain Text)
first.validate ();
first.validate ();
at the very bottom of the function. See if that makes a difference. I'm not sure it will, but it's worth a shot.

0__0 Thanks. It worked!
Thank you.. >(~__~)<

Enter My Dumpsite

Thread Tools	Search this Thread
Show Printable Version Email this Page

DaniWeb Message

Cancel Changes