I made a JComboBox and filled it using data from a table. Simply put this
is what's happening.
@entity class {
Integer id;
String name;
getId(); //return Integer
getName(); //return String
}
JComboBox cb = (JComboBox) evt.getSource();
myObject newItem = (myObject)cb.getSelectedItem();
String aString = newItem.getName(); //no error
Integer aNum = newItem.getId(); // null pointer exception
I'm using JPA and I have issue getting the String back but when I try to
assign the getId method to an integer I get a null pointer exception.
is this common problem?
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