for-loop :

For-loops are a slightly more complicated than while and do-while loops but on the other hand they can solve more complicated tasks with less code. Here is the describing for-loops syntax and example:

Syntax :

for (initialization; condition; update)
{
loop's body;
}

Example :

/* Description: Basic for-loop 1 to 10 number show example */ using System; namespace DemoProgramming { class Program { static void Main() { int i; for (i = 1; i <= 10; i++) { Console.Write(i + "\n"); } Console.ReadKey(); } } }

Output :

Nested for-loop :

A loop may contain another loop in his body This form of a loop is called nested loop. But in a nested loop, the inner loop must terminate before the outer loop.

Syntax :

for (initialization; condition; update)
{
for (initialization; condition; update)
{
loop's body;
}
}

Example :

/* Description: Triangle with number print */ using System; namespace DemoProgramming { class Program { static void Main() { int i,j; for (i = 1; i <= 20; i++) { Console.Write("\n"); for (j = 1; j <= i; j++) { Console.Write(j + " "); } } Console.ReadKey(); } } }

Output :