10 different Number Pattern Programs in C#

Pattern 1:

class pyramid
{
public static void Main()
{
int num, space;

while (true)
{
Console.Write("Enter a number between 1 to 9 : ");

num = Convert.ToInt32(Console.ReadLine());

space = num - 1;

for (int i = 1; i <= num; i++)
{
for (space = 1; space <= (num - i); space++)
{
Console.Write(" ");
}

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

for (int k = (i - 1); k >= 1; k--)
{
Console.Write(k);
}

Console.WriteLine();

}
}

}
}

Pattern:2

1
22
333
4444
55555

class NumberPattern
{
public static void Main()
{
int no = 5;

for (int i = 1; i <= 5; i++)
{
for (int j = 1; j <= i; j++)
{
Console.Write(i);
}
Console.WriteLine();
}
Console.ReadKey();
}
}

Pattern:3

1
12
123
1234
12345
1234
123
12
1

class Program
{

public static void Main(string[] args)
{
Console.Write("Enter a number: ");
int n = Convert.ToInt32(Console.ReadLine());

Console.WriteLine();

for(int i = 1; i < n; i++)
{
for(int j = 1; j <= i; j++)
Console.Write(j.ToString());
Console.WriteLine();
}
for(int i = n; i >= 0; i--)
{
for(int j = 1; j <= i; j++)
Console.Write(j.ToString());
Console.WriteLine();
}
Console.WriteLine();
}
}

Pattern:4

12345
1234
123
12
1

1
12
123
1234
12345

class Program
{

public static void Main(string[] args)
{
Console.Write("Enter a number: ");
int n = Convert.ToInt32(Console.ReadLine());

Console.WriteLine();
for (int i = n; i >= 0; i--)
{
for (int j = 1; j <= i; j++)
Console.Write(j.ToString());
Console.WriteLine();
}

for(int i = 1; i <= n; i++)
{
for(int j = 1; j <= i; j++)
Console.Write(j.ToString());
Console.WriteLine();
}

Console.WriteLine();
}
}

5. Pattern:5

1
01
101
0101
10101

class Program
{

public static void Main(string[] args)
{
int i, j, n, p, q;

Console.Write("\n\n");
Console.Write("Print the Floyd's Triangle:\n");
Console.Write("-----------------------------");
Console.Write("\n\n");

Console.Write("Input number of rows : ");
n = Convert.ToInt32(Console.ReadLine());
for (i = 1; i <= n; i++)
{
if (i % 2 == 0)
{ p = 1; q = 0; }
else
{ p = 0; q = 1; }
for (j = 1; j <= i; j++)
if (j % 2 == 0)
Console.Write("{0}", p);
else
Console.Write("{0}", q);
Console.Write("\n");

}
}
}

Pattern: 6

1
2 3
4 5 6
7 8 9 10

public static void Main(string[] args)
{
int i, j, rows, k = 1;

Console.Write("\n\n");
Console.Write("Display the pattern like right angle triangle with number increased by 1:\n");
Console.Write("---------------------------------------------------------------------------");
Console.Write("\n\n");

Console.Write("Input number of rows : ");
rows = Convert.ToInt32(Console.ReadLine());
for (i = 1; i <= rows; i++)
{
for (j = 1; j <= i; j++)
Console.Write("{0} ", k++);
Console.Write("\n");
}
}

Pattern:7

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2 3 4
1 2 3
1 2
1

class Program
{

public static void Main(string[] args)
{
for (int i = 1; i <= 5; i++)
{
for (int j = 1; j <= i; j++)
{
Console.Write("" + (j));

}
Console.WriteLine("");

}

for (int k = 4; k >= 0; --k)
{

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

}
Console.WriteLine("");
}
}
}

Pattern:8

public static void Main(string[] args)
{
int row, i, j, k;
Console.Write("Enter the no. of row you want to print: ");
row = Convert.ToInt32(Console.ReadLine());

for (i = 0; i <= row; i++)
{
k = 1;
for (j = i; j <= row - 1; j++)
Console.Write(" ");

for (j = 0; j <= i; j++)
{
Console.Write("{0} ", k);
k = (k * (i - j) / (j + 1));
}
Console.WriteLine();
}
Console.ReadLine();
}

Pattern 9:

5
54
543
5432
54321

public static void Main(string[] args)
{
{
int i = 5;
while (i >= 1)
{
int j = 5;
while (j >= i)
{
Console.Write(j);
j--;
}
i--;
Console.WriteLine();
}
Console.Read();
}
}

Pattern:10

public static void Main(string[] args)
{
int i, j, k;

for (i = 1; i <= 7; i++)
{
for (j = 1; j <= i; ++j)
Console.Write(j);

for (k = 7 - i; k >= 1; k--)
Console.Write("*");

Console.Write("\n");
}

Console.ReadLine();

}

Link - 7 Star Pattern in C#

Source: Csharpstar

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