Question: In C++ I need answer for E8.3 Open the same file again. Read the message into a string variable ond print it. .E8.2 Write a

In C++

I need answer for E8.3

In C++ I need answer for E8.3 Open the same file again.

Open the same file again. Read the message into a string variable ond print it. .E8.2 Write a program that reads a text file containing floating-point numbers. Print the average of the numbers in the file. Prompt the user for the file name. E8.3 Repeat Exercise E8.2, but allow the user to specify the file name on the command-line. If the user doesn't specify any file name, then prompt the user for the name

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