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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.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static String toString(Float[] a)
  11. 	{
  12. 		String s = "[";
  13.         int i = 0;
  14.         for (; i < a.length - 1; i++)
  15.         {
  16.             s += a[i] + ", ";
  17.         }
  18.  
  19.         s += a[i] + "]";
  20.         return s;
  21. 	}
  22.  
  23. 	public static float m(Float[] a)
  24.     {
  25.         Arrays.sort(a);
  26.         int l = a.length;
  27.         float n = a[l / 2];
  28.         return l % 2 > 0 ? n : (a[l / 2 - 1] + n) / 2;
  29.     }
  30.  
  31. 	public static void main (String[] args) throws java.lang.Exception
  32. 	{
  33. 		Float[][] input =
  34.         {
  35.                 { 1f, 2f, 3f, 4f, 5f, 6f, 7f, 8f, 9f },
  36.                 { 1f, 4f, 3f, 2f },
  37.                 { 1.5f, 1.5f, 1.5f, 1.5f, 1.5f, 1.5f, 1.5f, 1.5f, 1.5f, -5f, 100000f, 1.3f, 1.4f } };
  38.  
  39.         for (Float[] a : input)
  40.         {
  41.  
  42.             System.out.println(toString(a) + " -> " + m(a));
  43.         }
  44. 	}
  45. }
Success #stdin #stdout 0.05s 711168KB
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stdin
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Standard input is empty
stdout
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[1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0] -> 5.0
[1.0, 4.0, 3.0, 2.0] -> 2.5
[1.5, 1.5, 1.5, 1.5, 1.5, 1.5, 1.5, 1.5, 1.5, -5.0, 100000.0, 1.3, 1.4] -> 1.5
https://ideone.com/bEhZOY
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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