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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 boolean checkPrime(int n,int k)
  11. 	{
  12. 		if (n<=3) return true;
  13. 		if (n%2==0) return false;
  14. 		if (k*k>n) return true;
  15. 		if (n%k==0) 
  16. 		   return false;
  17. 		else
  18. 		   return checkPrime(n,k+2);
  19. 	}
  20. 	public static void main (String[] args) throws java.lang.Exception
  21. 	{
  22. 		int n1=200, n2=31;
  23.  
  24. 		if (checkPrime(n1,3))
  25. 		   System.out.println("Да");
  26. 		else   
  27. 		   System.out.println("Нет");
  28.  
  29. 		if (checkPrime(n2,3))
  30. 		   System.out.println("Да");
  31. 		else   
  32. 		   System.out.println("Нет");
  33.  
  34. 	}
  35. }
Success #stdin #stdout 0.05s 2184192KB
comments (?)
stdin 
Standard input is empty
stdout 
Нет
Да
https://ideone.com/S1TDph
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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