Triangle Patterns in C#

Abhishek Jaiswal

c# patternsC# Triangle Patternsmirror triangle in C#Triangle Patterns

18 Comments

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Nika Bitsadze5y ago
Thanks for the unnecessary "For" loop in the first example, I was able to figure out lazy students
Mohau Ntholeng6y ago
Hi Sir I wanted to ask how do you draw a x using these stars
Arun Kumar7y ago
Sir , can u say me how to became a successfull programmer
Raahim Khan8y ago
Saad hussain, here is the same book in pdf. Go through it so that you will be able to build your basic concepts. :)https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwiRitjGlpndAhUFaBoKHdUqCwEQFjAAegQIBRAC&url=https%3A%2F%2Fwww.cluster2.hostgator.co.in%2Ffiles%2Fwriteable%2Fuploads%2Fhostgator99706%2Ffile%2Fletusc-yashwantkanetkar.pdf&usg=AOvVaw1m_5ANeEYUEuY6SN88CkSK
Raahim Khan8y ago
Saad hussain, this book is a good guide for beginners.
Raahim Khan8y ago
Saad hussain, you can have "Let Us C," by Yashavant Kanetkar.
satish gunturi8y ago
For (int i = 0; i < 5; i++) { console.writeline(""); { for (int j = 0; j <= i; j++) { console.writel("*"); } } } console.readkey(); { for (int j = 0; j <= i; j++) { console.writel("*"); } } } console.readkey();
Shahbaz Khan8y ago
AOA, I need to print like Alphabet A in stars how its possible...
Kselva Kumar9y ago
May be this one is easy
Kselva Kumar9y ago
Http://www.c-sharpcorner.com/Blogs/triangle-in-c-sharp-a-simplest-way-to-do
Gokul10y ago
c# bigginners wiil help this program
Abhishek Jaiswal12y ago
what kinda solution u want aditya?
Abhishek Jaiswal12y ago
you can also download this e-book, http://www.c-sharpcorner.com/ebooks/free/53/programming-C-Sharp-for-beginners.aspx
Abhishek Jaiswal12y ago
saad hussain, for basics you can go through balagurusamy and for detail Black Book!
saad hussain12y ago
i mean practice book
saad hussain12y ago
Please tell me some book on C#
Abhishek Jaiswal12y ago
yeah u must, i'll try to update it.
Abhishek Jaiswal12y ago
please, stop this nonsense!

Hello geeks!

This article shows how to draw patterns in a C# console program, especially triangle patterns, like upward and downward.

Triangle: 1

This triangle is a simple triangle; we can draw that in several ways. I am showing two techniques of doing this using a simple for loop.

The first one will be like this:

for (j = 1; j <= i; j++)
{
Console.Write("");
}
for (k = 1; k <= i; k++)

And the second will follow this:

for (j = 1; j <= val-i; j++)
{
// Console.Write("");
}
for (k = 1; k <= i; k++)

Example

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Hello_Word
{
class Program
{
static void Main(string[] args)
{
int val = 5;
int i, j, k ;
for (i = 1; i <= val; i++)
{
for (j = 1; j <= i; j++)
{
Console.Write("");
}
for (k = 1; k <= i; k++)
{
Console.Write("*");
}
Console.WriteLine("");
}
Console.ReadLine();
}
}
}

Or you can write it as in the following by making some minor changes:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Hello_Word
{
class Program
{
static void Main(string[] args)
{
int val = 5;
int i, j, k ;
for (i = 1; i <= val; i++)
{
for (j = 1; j <= val-i; j++)
{
// Console.Write("");
}
for (k = 1; k <= i; k++)
{
Console.Write("*");
}
Console.WriteLine("");
}
Console.ReadLine();
}
}
}

Output Window

Triangle: 2

The triangle in this category is just the opposite of the first type of triangle patterns. There is no difficulty in applying loops for them, what we need to do is to make some little changes in the for loop conditions and it will work fine.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Hello_Word
{
class Program
{
static void Main(string[] args)
{
int val = 5;
int i, j, k ;
for (i = 1; i <= val; i++)
{
for (j = 1; j <= val-i; j++)
{
Console.Write(" ");
}
for (k = 1; k <= i; k++)
{
Console.Write("*");
}
Console.WriteLine("");
}
Console.ReadLine();
}
}
}

(In the same manner as I mentioned for the first triangle you can also do following pattern too by applying some minor changes.)

Output Window

Triangle: 3

In this category we just get a mirror triangle of the first triangle pattern. You can also make changes in the second category to get a mirror triangle pattern of that.

But the following is the code for only the first cat of triangle mirror.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Hello_Word
{
class Program
{
static void Main(string[] args)
{
int val = 5;
int i, j, k ;
for (i = 1; i <= val; i++)
{
for (j = 1; j <= val-i; j++)
{
// Console.Write(" ");
}
for (k = 1; k <= j; k++)
{
Console.Write("*");
}
Console.WriteLine("");
}
Console.ReadLine();
}
}
}

Output Window