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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 void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		// your code goes here
  13. 		int n=4;
  14. 		for(int i=1;i<=n;i++)
  15. 		{
  16. 			for(int k=1;k<n-i;k++)
  17. 			System.out.print(" ");
  18. 			int val=i;
  19. 			for(int j=1;j<=i;j++)
  20. 			{
  21. 				System.out.print(val+" ");
  22. 				val++;
  23.  
  24. 			}
  25. 			val-=2;
  26. 			for(int j=1;j<=i-1;j++)
  27. 			{
  28. 				System.out.print(val+" ");
  29. 				val--;
  30. 			}
  31. 			System.out.println();
  32. 		}
  33. 	}
  34. }
Success #stdin #stdout 0.15s 55636KB
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  1 
 2 3 2 
3 4 5 4 3 
4 5 6 7 6 5 4
https://ideone.com/BhmKY1
language:
Java (HotSpot 12)
created:
5 hours ago
visibility:
public

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