Computers and Technology, 06.04.2021 02:10 liljett
Now we need to add lines to allow us to read from the input file and calculate the mean. See Code Listing 4-19 in the textbook for an example of how to do this. a. Create a File object passing it the filename. b. Create a Scanner object passing it the File object. 2. Use Code Listing 4-20 as an example of how to read numbers from a file. 3. Write a loop that continues until you are at the end of the file. 4. The body of the loop will: a. convert the line into a double value and add the value to the accumulator b. increment the counter c. read a new line from the file 5. When the program exits the loop close the input file. 6. Calculate and store the mean. The mean is calculated by dividing the accumulator by the counter. 7. Compile, debug, and run. You should now get a mean of 77.444, but the standard deviation will still be 0.000.
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