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How can anonymous class extend any other class?

 
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How can anonymous class extend any other class? Can it be done explicitly?
 
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The following code shows how to go about making an anonymous class extend any other class.

The output is
anonymous extension of A
A
[ February 07, 2003: Message edited by: Valentin Crettaz ]
 
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You can't do it explicitly using the extends keyword
 
Valentin Crettaz
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It is strictly prohibited to use the "extends" and "implements" keywords in an anonymous class declaration.
[ February 07, 2003: Message edited by: Valentin Crettaz ]
 
Consider Paul's rocket mass heater.
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