Question: Defined a two-dimensional array of grades with 10 rows and three columns, representing 10 students grades on three exams. Use a stream pipeline to calculate

Defined a two-dimensional array of grades with 10 rows and three columns, representing 10 students’ grades on three exams. Use a stream pipeline to calculate the average of all the grades. For this exercise, use Stream method of to create a stream from the two-dimensional array and Stream method flatMap-ToInt to map each row into a stream of int values.

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