Web Reference: Aug 5, 2025 · Sometimes, you may want to restrict the types used in generics. For example, if a method should only work with numbers, you can use a bounded type like to allow only Number and its subclasses. To declare a bounded type parameter, list the type parameter's name, followed by the extends keyword, followed by its upper bound, which in this example is Number. Upper Bounds: An upper bound restricts the type argument to be a subtype of a specified type. This means that the type argument can be the bounded type itself or any of its subclasses.
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Java Generics 05 Upper Bounded Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
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