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author | Nguyễn Gia Phong <vn.mcsinyx@gmail.com> | 2019-12-15 10:34:58 +0700 |
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committer | Nguyễn Gia Phong <vn.mcsinyx@gmail.com> | 2019-12-15 15:00:00 +0700 |
commit | 67393f42f41ab92219deb549f711121c4dab845b (patch) | |
tree | ebd0eb6c8a3d3bd69937312179aeaf273ea29c80 /usth/ICT2.2/labwork/4/Stats.java | |
parent | b38d9929f7a015b56b847fde7e83f814f354497e (diff) | |
download | cp-67393f42f41ab92219deb549f711121c4dab845b.tar.gz |
[usth/ICT2.2] Object Oriented Programming
Diffstat (limited to 'usth/ICT2.2/labwork/4/Stats.java')
-rw-r--r-- | usth/ICT2.2/labwork/4/Stats.java | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/usth/ICT2.2/labwork/4/Stats.java b/usth/ICT2.2/labwork/4/Stats.java new file mode 100644 index 0000000..88d6832 --- /dev/null +++ b/usth/ICT2.2/labwork/4/Stats.java @@ -0,0 +1,19 @@ +import java.util.ArrayList; +import java.util.Scanner; + +class Stats +{ + public static void main(String... args) + { + var scanner = new Scanner(System.in); + int n = scanner.nextInt(); + var numbers = new ArrayList<Double>(); + for (int i = 0; i < n; ++i) + numbers.add(scanner.nextDouble()); + + double m = numbers.stream().mapToDouble(Double::doubleValue).sum() / n; + double s = Math.sqrt(numbers.stream() + .mapToDouble(x -> Math.pow(x - m, 2)).sum() / n); + System.out.printf("Mean: %f\nStandard deviation: %f\n", m, s); + } +} |