I am trying add an item listener to a checkbox to see if its been checked, and if it is, to be added to a list of SQL table names to be selected. Inversely, if it is not selected then remove it from the list. I cannot add a listener though to any checkbox because "they are not effitively final". What can I do/is there a better way to attack it?
My method:
public JPanel drawChecks(){
ArrayList<String> list = MainFrame.grabSQLTableNames();
int index = list.size();
int rows = 1;
while(index > 1){
rows++;
index = index - 3;
}
GridLayout c = new GridLayout(rows, 3);
JPanel panel = new JPanel(c);
JCheckBox check[] = new JCheckBox[list.size()];
for(int x = 0; x < list.size(); x++){
check[x] = new JCheckBox(list.get(x));
check[x].setVisible(true);
check[x].addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
if (check[x].getState == true){
//do something
}
}
});
panel.add(check[x]);
}
Get the source of the event using the getSource
method of the ItemEvent
public void itemStateChanged(ItemEvent e) {
JCheckBox checkBox = (JCheckBox)e.getSource();
if ( checkBox.isSelected() ){
//do something
}
}
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