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When do we use wildcards in Java generics? Group of answer choices To create a generic type that operates on a class hierarchy To specify
When do we use wildcards in Java generics? Group of answer choices To create a generic type that operates on a class hierarchy To specify an unknown type To establish an upper bound for a wildcard To establish a lower bound for a wildcard
When do we use wildcards in Java generics?
Group of answer choices
To create a generic type that operates on a class hierarchy
To specify an unknown type
To establish an upper bound for a wildcard
To establish a lower bound for a wildcard
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