Thin borderlines for JText cells

Question

Hi,
The following example makes a table based on JTextFields.
I would like to get thinner border lines as they are in a JTable.
Who knows how?
Thanks
Michel
package MTabProtoypes;
import java.awt.Color;
import java.awt.Container;
import java.awt.HeadlessException;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JTextField;
/* @author scm */
public class TabJtextfieldsArray02 extends JFrame implements MouseListener {
     private JTextField[][] txt;     // View: 2D Array of textfields o=o 2D model array 
     private Container cp = getContentPane();
     public static void main(String[] args) {
          int totRows = 256; int totCols=64; int visRows = 16; int visCols=8; int x=10; int y=10; int h=20; int w=70; 
          TabJtextfieldsArray02 mTabTest = new TabJtextfieldsArray02(totRows,totCols,visRows,visCols,x,y,w,h);          // Neue Table
         mTabTest.setSize(600, 400);    
         mTabTest.setVisible( true );
     public TabJtextfieldsArray02(int totRows, int totCols, int visRows, int visCols, int xpos, int ypos, int width, int height) throws HeadlessException {
//          super ("Tabellen - TabJtextfieldsArray02");
         cp.setLayout( null );
         txt = new JTextField[totRows][totCols]; // Table / Textfield-Array Params (rows/columns)
         for (int i = 0; i < visRows; i++) {appRow (i, visCols, xpos, ypos, width, height);}     // append row by row
            for (int i = 1; i <=visCols; i++) {insText (1,i,"ColHead "+i);}               // Index  Not 0/0, but 1/1, including header
            for (int i = 1; i <=visCols; i++) {setLineAttrib (1,i,1);}                    // Header (light gray)
            cp.addMouseListener((MouseListener) this);
     private void appRow (int row, int visCols, int x, int y, int w, int h) {     // build column row by row
          for (int j = 0; j < visCols; j++) {
               txt[row][j] = new JTextField();     
               txt[row][j].addMouseListener(this);
//               txt[row][j].setBorder(BorderFactory.createEmptyBorder());               // no border
//               if ((j+1)%2==0) {                                                                 // trial with only odd rows - forget it
//                    txt[row][j].setBorder(BorderFactory.createRaisedBevelBorder()); // border
//               } else {
//                    txt[row][j].setBorder(BorderFactory.createEmptyBorder());          // no border
               txt[row][j].setBorder(BorderFactory.createRaisedBevelBorder());
//               txt[row][j].setBackground(Color.lightGray );
//               txt[row][j].setForeground(Color.gray);
//               txt[row][j].setBorder(BorderFactory.createLoweredBevelBorder());
//               txt[row][j].setBorder(BorderFactory.createLineBorder(Color.black));          // Thickness = 1
//               txt[row][j].setBorder(BorderFactory.createLineBorder(Color.black,1));       // Color, Thickness
//               System.out.println(txt[row][j].getBorder());
//               txt[row][j].setBorder(BorderFactory.createMatteBorder(1, 1, 1, 1, Color.black));
//               txt[row][j].setBorder(BorderFactory.createEtchedBorder());
//               txt[row][j].setBorder(BorderFactory.createEtchedBorder(EtchedBorder.LOWERED )); //
               txt[row][j].setBounds(x+j*w,y+y*2*row,w,h);          
//               txt[row][j].setBounds(x+j*(w-1),y+y*2*row,w,h);     
               cp.add(txt[row][j]);
//     Text in ein Tabellenfeld einf�gen
     private void insText (int row, int col, String tabField) {
          txt[row-1][col-1].setText(tabField);
//     Eine Tabellenelement bekommt ein bestimmtes Aussehen
     public void setLineAttrib (int row, int col, int attrib) {
          switch (attrib) {
          case 1:          // Hintergrund grau
               txt[row-1][col-1].setBackground(Color.lightGray);     
               break;
          default:
               break;
     public void mouseClicked(MouseEvent arg0) {
          System.out.println("mouseClicked: "+arg0);
     public void mouseEntered(MouseEvent arg0) {
          System.out.println("mouseEntered: "+arg0);
     public void mouseExited(MouseEvent arg0) {
          System.out.println("mouseExited: "+arg0);
     public void mousePressed(MouseEvent arg0) {
          System.out.println("mousePressed: "+arg0);
     public void mouseReleased(MouseEvent arg0) {
          System.out.println("mouseReleased: "+arg0);
}

Answer 1

but I don't know why.you had a border for each 'cell', meaning between adjacent 'cells' there were 2 borders,
right side of one adjoining left side of adjacent
likewise for bottom/top
the matte border allows you to specify 0 pixels wide for top/left/bottom/right,
meaning the overall 2 borders are 1 pixel wide
http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/BorderFactory.html#createMatteBorder(int,%20int,%20int,%20int,%20java.awt.Color)