I can't understand why I'm getting this NullPointerException. I started with much different looking code (and improved to what you see) all in attempts of fixing the bug and I just can't figure out what's going on.
all help is hugely appreciated:
final JComboBox modelName = null;
//Model ComboBoxModel
final DefaultComboBoxModel termModel = new DefaultComboBoxModel(new String[]{
"Choose One...", "Hypercom", "DejaVoo", "Nurit", "Verifone"});
...
// model drop-down
modelName.setModel(termModel); //getting nullPointerException on this line
modelName.addActionListener(this);
modelPanel.add(modelName);
...
@Override
public void actionPerformed(ActionEvent e) {
if ("Hypercom".equals(modelName.getSelectedItem())){
termName.setModel(hSpecModel);
} else if ("Deja Voo".equals(modelName.getSelectedItem())){
termName.setModel(dSpecModel);
} else if ("Nurit".equals(modelName.getSelectedItem())){
termName.setModel(nSpecModel);
} else if ("Verifone".equals(modelName.getSelectedItem())){
termName.setModel(vSpecModel);
} else {
termName.setModel(slctAbove);
}
}
final JComboBox modelName = null; // !!!!!
You really shouldn't wonder why you get a NPE when you try to use this variable:
modelName.setModel(termModel);