Question: In java - what is a good way to print the average of numbers listed in a input file? file example: Mary 20 30 40

In java - what is a good way to print the average of numbers listed in a input file?

file example:

Mary 20 30 40 -1

Joe 30 50 60 70 -1

Jil -1

Output:

In java - what is a good way to print the average

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