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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6. import java.text.DecimalFormat;
  7. import java.util.Random;
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11.    public static void main(String[] args) {
  12.         DecimalFormat df = new DecimalFormat("##.##%");
  13.         double nbError, nbTest = 1000000;
  14.         for (int charge = 1; charge < 11; charge++) {
  15.             nbError = 0;
  16.             for (int j = 0; j < nbTest; j++) {
  17.                 nbError += (isError(charge) ? 0 : 1);
  18.             }
  19.             System.out.println(charge + " -> " + df.format(nbError / nbTest));
  20.         }
  21.     }
  22.  
  23.     private static boolean isError(int charge) {
  24.         return new Random().nextInt(10) >= (11 - charge);
  25.     }
  26. }
Success #stdin #stdout 0.55s 99424KB
comments (?)
stdin 
Standard input is empty
stdout 
1 -> 100%
2 -> 90.04%
3 -> 80.04%
4 -> 70.01%
5 -> 59.98%
6 -> 50.09%
7 -> 39.98%
8 -> 30%
9 -> 19.99%
10 -> 10%
https://ideone.com/xDlJKH
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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