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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. 		int cnt = 1;
  15. 		for (int i = 1; i <= n; i++)
  16. 		{
  17. 		for (int j = 1; j <= i; j++)
  18. 		{
  19. 		if (j == 1) System.out.print(cnt++); else System.out.print("*" + cnt++);
  20. 		}
  21. 		System.out.println();
  22. 		}
  23. 		for (int i = n; i >= 1; i--)
  24. 		{
  25. 		cnt -= i;
  26. 		for (int j = 1; j <= i; j++)
  27. 		{
  28. 		if (j == 1) System.out.print(cnt++); else System.out.print("*" + cnt++);
  29. 		}
  30. 		System.out.println();
  31. 		}		
  32. 	}
  33. }
Success #stdin #stdout 0.13s 320576KB
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stdin
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Standard input is empty
stdout
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1
2*3
4*5*6
7*8*9*10
7*8*9*10
8*9*10
9*10
10
https://ideone.com/MvkQSc
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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