JTable as User's input (?)

[Sandip K Sadhukhan]

Hi,
I have never used JTable before, in one application I am thinking to display a bank JTable for user input as next process the data and display result in a non-editable JTable. Now my question is it possible to do so or it is not advisable to take input from user in such way?

I have tried to make a JTable implementing TableModel with some initial cell's value as shown in Tutorials, but when I change the data I a cell and then try to get value of that cell, it gives the old value ?

Any experienced idea will be highly appreciated.

Sandip

[Venkatraman Kandaswamy]

Your luck - I was messing with a swing tool just today. Anyways did you do a firetablecellupdated after you set the values?? Probably thats the reason its not getting updated. Anyways here is my table model - compare with the one you are having - probably it might give you some insights.

 
class MyTableModel extends AbstractTableModel {
 
private String[] columnNames = { "Select", "Field Name", "Value",
"Error message" };
 
private ArrayList data;

public MyTableModel(ArrayList tableData){
super();
data = tableData;
System.out.println(data.size());
}

 

public int getColumnCount() {
return columnNames.length;
}
 
public int getRowCount() {
return data.size();
}
 
public String getColumnName(int col) {
return columnNames[col];
}
 
public Object getValueAt(int row, int col) {
ArrayList al = (ArrayList)data.get(row);

return al.get(col);
}
 
/*
 * JTable uses this method to determine the default renderer/ editor for
 * each cell. If we didn't implement this method, then the last column
 * would contain text ("true"/"false"), rather than a check box.
 */
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
}
 
/*
 * Don't need to implement this method unless your table's editable.
 */
public boolean isCellEditable(int row, int col) {
boolean[] editable = { true, false, true, true };
return editable[col];
}
 
/*
 * Don't need to implement this method unless your table's data can
 * change.
 */
public void setValueAt(Object value, int row, int col) {
if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value + " (an instance of "
+ value.getClass() + ")");
}
ArrayList al = (ArrayList)data.get(row);
al.set(col,value);
data.set(row,al);
fireTableCellUpdated(row, col);
 
if (DEBUG) {
System.out.println("New value of data:");
printDebugData();
}
}
 
private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount();
 
/*for (int i = 0; i < numRows; i++) {
System.out.print("    row " + i + ":");
for (int j = 0; j < numCols; j++) {
System.out.print("  " + data[i][j]);
}
System.out.println();
}*/
System.out.println("--------------------------");
}
}
 

[Sandip K Sadhukhan]

Thanks Venkat,
I am not a professional java gui developer, just started to learning swing/ stand-alone application all these I do in my odd hours.
I appreciate your suggesion and try it out and if fail , I will post the code of my TableModel class.

regd,

Sandip