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Home/ Questions/Q 3243420
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Editorial Team
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Editorial Team
Asked: May 17, 20262026-05-17T18:25:49+00:00 2026-05-17T18:25:49+00:00

interface Foo<T extends Number>{ } class Bar<T extends Number> implements Foo<T>{ } Why does

  • 0
interface Foo<T extends Number>{
}

class Bar<T extends Number> implements Foo<T>{

}

Why does the class have to be written that way instead of:

class Bar<T extends Number> implements Foo<T extends Number>{
}

Surely the second way is clearer.

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  1. Editorial Team
    Editorial Team
    2026-05-17T18:25:49+00:00Added an answer on May 17, 2026 at 6:25 pm

    Because that’s the same T, so it’s redundant to say it extends Number again.

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