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javagenericsparameterizedtype-safety

JComboBox is a raw type. References to generic type JComboBox<E> should be parameterized


String[] boxOptions = {"1","2","4","8","16","20","40","100","400"};
JComboBox box = new JComboBox(boxOptions);

I had these exact lines of code in my program before, and wasn't getting this error. I did a bit of searching and the results I found are going a bit over my head. Any ideas?

The error is:

JComboBox is a raw type. References to generic type JComboBox<E> should be parameterized

Solution

  • You can use:

    JComboBox<String> box = new JComboBox<>(boxOptions);
    

    This happens because JComboBox is now a generic class.