在示例代码中，用方法引用替代语句Comparator[User] comparator = Comparator.comparing(u -> u.getUserName())正确的是（）。 A: Comparator<User> comparator = Comparator.comparing(uses::getUserName) B: Comparator<User> comparator = Comparator.comparing(User::getUserName) C: Comparator< > comparator = Comparator.comparing(uses::getUserName) D: Comparator< > comparator = Comparator.comparing(User::getUserName)

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2022-06-09

在示例代码中，用方法引用替代语句Comparator[User] comparator = Comparator.comparing(u -> u.getUserName())正确的是（）。 A: Comparator<User> comparator = Comparator.comparing(uses::getUserName) B: Comparator<User> comparator = Comparator.comparing(User::getUserName) C: Comparator< > comparator = Comparator.comparing(uses::getUserName) D: Comparator< > comparator = Comparator.comparing(User::getUserName)

在示例代码中，用方法引用替代语句Comparator[User] comparator = Comparator.comparing(u -> u.getUserName())正确的是（）。
A: Comparator comparator = Comparator.comparing(uses::getUserName)
B: Comparator comparator = Comparator.comparing(User::getUserName)
C: Comparator< > comparator = Comparator.comparing(uses::getUserName)
D: Comparator< > comparator = Comparator.comparing(User::getUserName)

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