For this project, you will develop a Java program that will read a file of numbers, and do some elementary statistical calculations.
Your program should prompt the user for a filename, read data from the file,
and use java methods to do the calculations.
See the sample program interaction below . . .
Submission: We will be using the CS Homework Submission
system
(
https://hopper.csustan.edu/cshomework/ ).
You will submit your ".java" file, as usual . . .
Input data: Your program will read a filename from the user, then read data from the file.
The format of the file will consist of ascii (text) numbers. The first number will specify how many (data) numbers follow.
Example data file:
20 1.1 2 3.3 4 5.5 6 7 8.5 9 10.0 11 12.3 13 14 15.5 16.1 17 18 19.2 20.0
Output: Your program will perform the appropriate
calculations (see below).
Scoring: The maximum possible score for the project
will be 80 points. There will be up to 40 points for correct
operation of your program, and up to 40 points for style,
comments, etc.
Late programs will have their maximum possible score reduced
to 0.9 times previous for each calendar day late (i.e.,
maximum possible score = 80 * (0.9^n) for n days late . . .).
Current folder: /Users/tom/Classwork/F12/CS1500/NetBeans/Stats Java will look there for the file name you enter, unless you enter the full path . . . Enter file name (default is /Users/tom/data/numbers-example.txt): The file /Users/tom/data/numbers-example.txt has 20 numbers in it The numbers are: 1.1 2.0 3.3 4.0 5.5 6.0 7.0 8.5 9.0 10.0 11.0 12.3 13.0 14.0 15.5 16.1 17.0 18.0 19.2 20.0 The mean is 10.625 The standard deviation is 5.750 Thanks!Second example:
Current folder: /Users/tom/Classwork/F12/CS1500/NetBeans/Stats Java will look there for the file name you enter, unless you enter the full path . . . Enter file name (default is /Users/tom/data/numbers-example.txt): numbers-example-150.dat The file numbers-example-150.dat has 150 numbers in it The numbers are: 103.55 82.81 93.23 93.54 78.07 104.03 118.22 108.7 98.19 110.08 126.75 107.44 85.42 112.99 105.48 77.25 110.56 89.75 67.74 126.07 87.01 102.6 105.75 105.61 108.91 94.31 100.17 126.93 105.54 99.44 92.75 85.51 114.77 93.32 121.71 105.51 98.45 95.79 100.4 94.4 91.76 97.55 132.06 119.32 100.02 100.69 108.15 95.89 92.75 97.29 115.92 97.84 89.42 83.21 114.61 99.31 123.01 77.69 93.78 115.87 85.35 89.3 111.42 118.29 93.58 129.49 102.71 111.57 84.94 89.03 104.85 69.06 71.69 100.45 105.12 78.64 96.31 100.29 94.37 114.43 98.32 107.39 94.2 76.82 103.1 122.22 96.41 124.18 116.45 92.44 100.36 80.24 86.85 75.89 106.33 113.76 80.96 78.25 141.05 111.56 93.94 87.72 82.24 81.34 119.94 99.97 106.31 86.98 110.41 93.64 96.16 101.54 92.16 95.72 76.8 102.35 84.14 113.76 94.09 95.55 95.76 126.67 70.28 79.27 66.55 107.47 111.57 109.74 91.28 86.76 109.35 111.37 113.42 110.13 105.85 99.35 104.82 111.24 94.13 104.94 102.26 87.13 111.15 114.95 63.68 120.96 76.17 117.53 108.69 95.57 The mean is 99.769 The standard deviation is 14.663 Thanks!Third example:
Current folder: /Users/tom/Classwork/F12/CS1500/NetBeans/Stats Java will look there for the file name you enter, unless you enter the full path . . . Enter file name (default is /Users/tom/data/numbers-example.txt): /Users/tom/Classwork/F12/CS1500/NetBeans/Stats/numbers-example-30.dat The file /Users/tom/Classwork/F12/CS1500/NetBeans/Stats/numbers-example-30.dat has 30 numbers in it The numbers are: 106.45 90.47 99.99 98.91 80.06 92.09 95.13 111.35 104.08 119.42 121.78 112.81 123.2 100.56 121.67 81.7 118.18 97.63 79.89 120.72 115.1 89.78 87.11 92.53 104.47 105.18 97.43 108.12 97.78 112.3 The mean is 102.863 The standard deviation is 12.748 Thanks!