JTable getColumnName not working with numbered rows
you know when you read through the same code for a day and can't find the problem but someone who has never seen it before can find the problem in a second? i've got that going on right now.
I saw a thread, http://forum.java.sun.com/thread.jspa?forumID=57&threadID=639189 , where rows numbers are neatly added to a JTable by camickr, after I implemented this I can't get my data or ColumnHeaders to line up with the corrent columns. I have three columns, { Integer, Integer, JComboBox } it's kind of an old post but I was just wondering if any one else had run into the problem.
Also when I insert a new row { Integer, Integer, "Combo Option" } it is inserted into the table as { Integer, "Combo Option", Integer }, this isn't a real high priority but any help would be appreciated, thanks.
[818 byte] By [
cwalshea] at [2007-10-3 8:44:17]
Hi,
How to pass parameter to the applet from jsp.
Rightnow i am using <jsp:param> attribute to pass the value to the applet, but its not working.
Please guide me to come out of this issue.
This is my code:
Pie1.Java
--
public class Pie1 extends Applet
{
Label inputlabel;
TextField input1, input2, input3, input4;
Button b1;
int sum=0, counter=0;
String num1[] = new String[100];
int num2[] = new int[100];
int number[] = new int[100];
int degrees[] = new int[100];
int i=0;
String dept;
public void init()
{
System.out.println("--inside init()--");
try
{
System.out.println("1");
System.out.println("dept value in init() is "+dept);
maniss();
System.out.println("2");
}
catch(Exception ex)
{
}
}
public void maniss() throws SQLException,ClassNotFoundException
{
try
{
System.out.println("--inside maniss()--");
System.out.println("dept value in maniss() is "+dept);
number[0]=2;
number[1]=2;
number[2]=3;
number[3]=2;
sum=number[0]+number[1]
+number[2]+number[3];
sum=number[0]+number[1]+number[2];
degrees[0]=number[0]*360/sum;
degrees[1]=number[1]*360/sum;
degrees[2]=number[2]*360/sum;
degrees[3]=360-degrees[0]-degrees[1]-degrees[2];
degrees[2]=360-degrees[0]-degrees[1];
repaint();
}
catch(Exception ex)
{
System.out.println("Exception in Pie1.java is "+ex);
}
}
public void paint(Graphics g)
{
System.out.println("--inside paint()--");
g.setColor(Color.red);
System.out.println("1");
System.out.println("passed dept value is "+dept);
g.drawString(dept,60,60);
g.fillArc(40,60,200,200,0,degrees[0]);
g.setColor(Color.green);
g.fillArc(40,60,200,200,
degrees[0], degrees[1]);
g.setColor(Color.blue);
g.fillArc(40,60,200,200,
degrees[0]+degrees[1],
degrees[2]);
g.setColor(Color.yellow);
g.fillArc(40,60,200,200,
degrees[0]+degrees[1]+degrees[2],
degrees[3]);
}
}
Pie1.Jsp
<jsp:plugin type="applet" code="Pie1.class" codeBase="SampleApplets" width="400" height="400>
<jsp:params>
<jsp:param name="dept" value="saurav"/>
</jsp:params>
</jsp:plugin>
My intention is to pass the value for 'dept', i programed in such a way but its not working, help me!
I tried to shorten this up as much as possible, sorry but it is still kind of big:
//Main class
import java.awt.*;
import java.awt.event.*;
public class TableProblem extends javax.swing.JFrame
{
BoreDataJTable table;
javax.swing.JScrollPane jsp;
public TableProblem()
{
BoreDataDefaultTableModel model = new BoreDataDefaultTableModel( 0, 3 );
table = new BoreDataJTable( model );
table.getTableHeader().setReorderingAllowed( false );
jsp = new javax.swing.JScrollPane( table );
jsp.setViewportView( table );
this.setContentPane( jsp );
}
public static void main(String args[])
{
System.out.println("Starting App");
TableProblem f = new TableProblem();
f.setSize(300,100);
f.show();
}
}
//JTable class
import javax.swing.*;
import javax.swing.table.*;
import java.awt.Component;
public class BoreDataJTable extends JTable
{
public BoreDataJTable( TableModel tm )
{
super( tm );
setAutoCreateColumnsFromModel( false );
setAutoscrolls( false );
addColumn( new TableColumn() );
getColumnModel().getColumn(0).setCellRenderer( this.getTableHeader().getDefaultRenderer() );
getColumnModel().getColumn(0).setPreferredWidth( 25 );
getColumnModel().getColumn(0).setCellEditor( null );
getColumnModel().getColumn(0).setResizable( false );
getColumnModel().getColumn(1).sizeWidthToFit();
getColumnModel().getColumn(2).sizeWidthToFit();
setPreferredScrollableViewportSize( getPreferredSize() );
initGroundColumn( this.getColumnModel().getColumn(3) );
}
public boolean isCellEditable(int row, int column)
{
if( column < 3 )
return false;
else
return true;
}
public Object getValueAt( int row, int col )
{
if( col == 0)
return new Integer( row + 1 );
else
{
DefaultTableModel model = ( ( DefaultTableModel )(
this.getModel() ) );
return model.getValueAt( row, col - 1 );
}
}
public void initGroundColumn( TableColumn groundColumn )
{
JComboBox comboBox = new JComboBox();
comboBox.addItem( "Select" );
comboBox.addItem( "Top Soil" );
comboBox.addItem( "Clay" );
comboBox.addItem( "Sand" );
comboBox.addItem( "Gravel" );
comboBox.addItem( "Pit Run" );
comboBox.addItem( "Sand Stone" );
comboBox.addItem( "Bed Rock" );
groundColumn.setCellEditor(new DefaultCellEditor(comboBox));
DefaultTableCellRenderer renderer = new DefaultTableCellRenderer();
renderer.setToolTipText("Select Ground Type");
groundColumn.setCellRenderer(renderer);
}
}
//DefaultTableModel class
import javax.swing.table.*;
import javax.swing.*;
public class BoreDataDefaultTableModel extends DefaultTableModel
{
private final Object[] emptyRow = { new Integer(0), new Integer(0), "Select" };
private final String[] colNames = { null, "Depth (cm)", "Angel (%)", "Ground" };
int cols;
int rows;
public BoreDataDefaultTableModel( int rows, int cols )
{
super( rows, cols );
this.rows = rows;
this.cols = cols;
addRow( emptyRow );
}
public String getColumnName( int col )
{
return colNames[col];
}
}
The problem is that when the JComboBox is changed, it changes the value in the "Depth" to the the JComboBox's value, also it doesn't correctly display the ColumnHeader for the JComboBox's column
