Basic question about JLabel

Since i declare:

double total = 12.00;

why i cant put:

p1.add(jlbTotal= new JLabel (total));

Is there 开发者_如何学Pythonany way I can use to insert that total value?

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JLabel does not take doubles in its constructors. You first need to convert your double to a String. For example:

new JLabel(String.valueOf(total));