Programming Forums > Application Development > Java

s�kki · Apr 2nd, 2006, 3:57 AM

So little background first:

I have setted in GUI JTextFields in matrix-form, the alignment depends on the selected size of the matrix. For example:
size = 2

tf0 tf1
tf2 tf3

size = 3

tf0 tf1 tf2
tf3 tf4 tf5
tf6 tf7 tf8

and the problem is how to read the number in the textfield and set it into the right index on the matrix -> size=3, tf5 gets value 9 -> matrix[1][2] = 9.

Can someone come up with a way to do this easily or am I just going to do long idiot code with switch-case. If you know a better way to do this please tell me. Thanks

Jimbo · Apr 2nd, 2006, 4:06 AM

Quote:

Originally Posted by s�kki

and the problem is how to read the number in the textfield and set it into the right index on the matrix -> size=3, tf5 gets value 9 -> matrix[1][2] = 9.

How did you decide that 9 goes in tf5? Or is that from some input source?

and maybe matrix[n/size][n%size] for indexing?

I'm not sure that I'm understanding the question correctly...

s�kki · Apr 2nd, 2006, 4:47 AM

Well 9 is just some value that the users enters.

Main point in this part of the program, is to collect the values to a cipher matrix.

hmm, how could I say this
problem is that I have put a running numbering to the JTextFields with .setActionCommand(). The matrix is always a square matrix = 2x2, 3x3 etc.

So the numbering goes 0 - > size*size -1. Exampel size=3
0 1 2
3 4 5
6 7 8
But the matrix where I have to enter the values, that user puts into the textfields, is indexed this way
0/0 0/1 0/2
1/0 1/1 1/2
2/0 2/1 2/2

Of course I could just code some checking method that enters values, by making a different case to each size and so on. But I just think there might be easier (smarter) way to do this.

Arevos · Apr 2nd, 2006, 6:04 AM

Perhaps you could post up some code? I'm still unsure of what exactly it is you mean, or why placing the values in a dynamically sized matrix is so difficult. As Jimbo says, matrix[n/size][n%size] should convert from a one-dimensional list to a two-dimensional matrix.

s�kki · Apr 2nd, 2006, 6:09 AM

well it's not hard actually. I just hoped there would have been one method that works for all cases.

I don't have any code done regarding this problem yet and the actual _code_ isn't the problem I believe, but the idea of how the hell it should be done

well I have time so I'll just code it with all the different cases if I don't come up with a better way.

E: As Jimbo says, matrix[n/size][n%size] should convert from a one-dimensional list to a two-dimensional matrix.

I'll try that, thanks

s�kki · Apr 2nd, 2006, 8:09 AM

thanks for that tip and more help needed

Now the thing is that how am I supposed to read both the index number and the given value of all the text fields.

So how to name the textfields with a running number or something. Some code, that's not right at all:

(Toggle Plain Text)

//this is where JTFs are inserted into a panel
private void valuepanel(){
	 
	 valuePanel.setLayout(new GridLayout(size,size,15,25));
		 
	 for (int i = 0; i < (size*size); i++) { 
		 values = new JTextField(); 
		
		 values.setActionCommand(""+i);
		 values.addActionListener(new valueListener());
		 valuePanel.add(arvot); 
	}
 }
//listener
class valueListener implements ActionListener {
	  public void actionPerformed (ActionEvent e){
		  int tf = Integer.parseInt(e.getActionCommand());
		  String textfield = values.getText();
		  valueMatrix[tf/koko][tf%koko] = Integer.parseInt(textfield); 
		 }
 }

I have to go now so I won't be able to answer question at the moment, but hopefully you understand what I'm trying to say here

Apr 2nd, 2006, 3:57 AM	#1
s�kki Newbie Join Date: Feb 2005 Posts: 9 Rep Power: 0	how should I... So little background first: I have setted in GUI JTextFields in matrix-form, the alignment depends on the selected size of the matrix. For example: size = 2 tf0 tf1 tf2 tf3 size = 3 tf0 tf1 tf2 tf3 tf4 tf5 tf6 tf7 tf8 and the problem is how to read the number in the textfield and set it into the right index on the matrix -> size=3, tf5 gets value 9 -> matrix[1][2] = 9. Can someone come up with a way to do this easily or am I just going to do long idiot code with switch-case. If you know a better way to do this please tell me. Thanks

Apr 2nd, 2006, 8:09 AM	#6
s�kki Newbie Join Date: Feb 2005 Posts: 9 Rep Power: 0	thanks for that tip and more help needed Now the thing is that how am I supposed to read both the index number and the given value of all the text fields. So how to name the textfields with a running number or something. Some code, that's not right at all: (Toggle Plain Text) //this is where JTFs are inserted into a panel private void valuepanel(){ valuePanel.setLayout(new GridLayout(size,size,15,25)); for (int i = 0; i < (sizesize); i++) { values = new JTextField(); values.setActionCommand(""+i); values.addActionListener(new valueListener()); valuePanel.add(arvot); } } //listener class valueListener implements ActionListener { public void actionPerformed (ActionEvent e){ int tf = Integer.parseInt(e.getActionCommand()); String textfield = values.getText(); valueMatrix[tf/koko][tf%koko] = Integer.parseInt(textfield); } } //this is where JTFs are inserted into a panel private void valuepanel(){ valuePanel.setLayout(new GridLayout(size,size,15,25)); for (int i = 0; i < (sizesize); i++) { values = new JTextField(); values.setActionCommand(""+i); values.addActionListener(new valueListener()); valuePanel.add(arvot); } } //listener class valueListener implements ActionListener { public void actionPerformed (ActionEvent e){ int tf = Integer.parseInt(e.getActionCommand()); String textfield = values.getText(); valueMatrix[tf/koko][tf%koko] = Integer.parseInt(textfield); } } I have to go now so I won't be able to answer question at the moment, but hopefully you understand what I'm trying to say here

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Apr 2nd, 2006, 4:47 AM	#3
s�kki Newbie Join Date: Feb 2005 Posts: 9 Rep Power: 0	Well 9 is just some value that the users enters. Main point in this part of the program, is to collect the values to a cipher matrix. hmm, how could I say this problem is that I have put a running numbering to the JTextFields with .setActionCommand(). The matrix is always a square matrix = 2x2, 3x3 etc. So the numbering goes 0 - > sizesize -1. Exampel size=3 0 1 2 3 4 5 6 7 8 But the matrix where I have to enter the values, that user puts into the textfields, is indexed this way 0/0 0/1 0/2 1/0 1/1 1/2 2/0 2/1 2/2 Of course I could just code some checking method that enters values, by making a different case to each size and so on. But I just think there might* be easier (smarter) way to do this.

Apr 2nd, 2006, 6:04 AM	#4
Arevos Programming Guru Join Date: Aug 2005 Location: England Posts: 1,499 Rep Power: 5	Perhaps you could post up some code? I'm still unsure of what exactly it is you mean, or why placing the values in a dynamically sized matrix is so difficult. As Jimbo says, matrix[n/size][n%size] should convert from a one-dimensional list to a two-dimensional matrix.

Apr 2nd, 2006, 6:09 AM	#5
s�kki Newbie Join Date: Feb 2005 Posts: 9 Rep Power: 0	well it's not hard actually. I just hoped there would have been one method that works for all cases. I don't have any code done regarding this problem yet and the actual _code_ isn't the problem I believe, but the idea of how the hell it should be done well I have time so I'll just code it with all the different cases if I don't come up with a better way. E: As Jimbo says, matrix[n/size][n%size] should convert from a one-dimensional list to a two-dimensional matrix. I'll try that, thanks

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Programming Forums > Application Development > Java

how should I...