• In reality, we would probably express this more compactly using a method reference to the size method for our mapper and a predefined reducer for integer summation.

    现实情况中我们表达方式可能紧凑一些我们mapper使用size方法的方法引用以及整数的求和会用到一个预先定义reducer

    youdao

  • In reality, we would probably express this more compactly using a method reference to the size method for our mapper and a predefined reducer for integer summation.

    现实情况中我们表达方式可能紧凑一些我们mapper使用size方法的方法引用以及整数的求和会用到一个预先定义reducer

    youdao

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