Custom Implicit Conversion in Java

Question

How do you make a class be able to implicitly convert to another class? How do you accomplish this in Java?

Answer 1

You cannot overload operators with java. Add a method to your class of choice to perform the conversion. For example:

public class Blammy

{

    public static final Blammy blammyFromHooty(final Hooty hoot)

    {

        Blammy returnValue;

        // convert from Hooty to Blammy.

        return returnValue;

    }

}

• Only built-ib types have implicit conversions.

• Explicit conversion is called a cast. For example, int q = 15; double x = (double) q;

• There can never be implicit conversions of your custom types

• Extends and implements are not conversions.

• All implicit conversions are for primitive types.

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