Write a program called Exam which prompts the user for three integer exam scores,

and displays the average score as a double value.

Please use the Scanner class to prompt the user.

The answer must be correct to at least one decimal place $-$ but don't worry about formatting your output.

Use the following test data: exams are $90,91,100$

Example output:

Enter the first exam score: $90$

Enter the second exam score: $91$

Enter the third exam score: $100$

The average exam score is: $???$ Check on your calculator!!