Thread: help with loop to print an equliateral asterisk triangle

This is a forum dedicated to Java programming, not C/C++

I'll give you some hints:

1. The number of spaces to draw out is N - 1 - row (starting with row 0)
2. The number of * to draw out starts at 1 and increases by 2 each time through, so 2 * row + 1 (starting with row 0)

Fyi, learning Java before learning C/C++ is much easier (simply because then all you have to do is pick up some small syntax changes and memory/pointer management)

Almost right on the stars: what if you wanted to print an inverted triangle with 6 rows?

the space equation is right. Again, stars is correct, but the thing I was hinting towards is a general formula for stars with N rows.

stars = 2 * (N - row) - 1
space = row

Originally Posted by everyone0

here is my work so far :

# include <stdio.h>
main()
{
int  N,row, column;
printf(“Enter the triangle-drawing value n:”);
scanf(“%d”,&N);
for (row=1; row<=N, row++)
{
	for ( column = 1 ;  column <= row ; column++ )
	{
		   printf(  “*”  );
	}
               for (space=0; space<=N-1; space--)
                 {
                       printf(" ");
                 }
	printf(“\n”);
}
}

the output is supposed to look like this when u enter n=5

----*
---***
--*****
-*******
*********
of course just the triangle ignoring the "-".but when i run the program it doesn't display that way and i still dont know why.

This will work fine try it. its a java code

...removed by moderator

Originally Posted by c.palihakkara

This will work fine try it. its a java code

Thanks for the contribution, but you should recognize that a) you are resurrecting a post that is over 2 years old b) you are spoonfeeding code. Read the forum rules and http://www.javaprogrammingforums.com...n-feeding.html Your code has been removed as a result.