I have a button click event on which i am getting a column value, if a Table row is selected. But if i don't select the row and click the button i get the error: java.lang.ArrayIndexOutOfBoundsException:-1 my question is how can i check to see if a row has been selected pseudocode: if(Row == selected) { execute }
java code i have:
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
try
{
int row = Table.getSelectedRow();
String Table_click = (Table.getModel().getValueAt(row, 0).toString());
//... implementation hire
} catch (Exception e)
{
JOptionPane.showMessageDialog(null, e);
}
}
Thank you for your help.
Stop and think logically about your problem before you're tempted to post. Take a break from coding if you need to -- once you take a break, the solution to the problem often presents itself in short order.
int row = Table.getSelectedRow();
if(row == -1)
{
// No row selected
// Show error message
}
else
{
String Table_click = (Table.getModel().getValueAt(row, 0).toString());
// do whatever you need to do with the data from the row
}
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