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Home/ Questions/Q 658065
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Editorial Team
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Editorial Team
Asked: May 13, 20262026-05-13T22:53:33+00:00 2026-05-13T22:53:33+00:00

Is there anyway to use a bounded wildcard require a class implement more than

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Is there anyway to use a bounded wildcard require a class implement more than one interface?

In otherwords, something like…

class Foo<S extends Comparable && Clonable>

…which would require that objects extend both interfaces?

I realize I can make another ComparableAndClonable which extends the two but I don’t have control over some of the code (So I can’t go make my future-S object implement ComparableAndClonable).

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  1. Editorial Team
    Editorial Team
    2026-05-13T22:53:33+00:00Added an answer on May 13, 2026 at 10:53 pm
    class Foo<S extends Comparable & Clonable>
    

    Should work.

    See Java Generics Wildcarding With Multiple Classes for further info.

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