C# for Loop
For loop is used to iterate a part of the code multiple times. We must use for loop instead of using while and do while if the number of iteration is known in advance.
For loop in C# is same as it was In C and C++.
Syntax:
for(<initialization>;<condition>;<increment/decrement>)
{
//Code which is to be executed several number of times
}
C# for loop example:
using System;
public class ForLoopExample1
{
public static void Main (string[] args)
{
Console.WriteLine("Enter The number of which you want to print the table??");
int num=Convert.ToInt32(Console.ReadLine());
for(int i=1;i<=10;i++)
{
Console.WriteLine(num +"X" +i +"=" +num*i);
}
}
}
Output
Enter The number of which you want to print the table?? 6 6X1=6 6X2=12 6X3=18 6X4=24 6X5=30 6X6=36 6X7=42 6X8=48 6X9=54 6X10=60 C# nested for loop: Two loops get executed in nested for loop named as inner loop and outer loop. The inner loop iterates n number of times for each outer loop iteration. Syntax:
for(<initialization>;<condition>;<updation>)
{
for(<initialization>;<condition>;<updation>)
{
//some statements
//the loop iterates until the inner condition fulfills for every outer loop execution }
C# Nested for loop Example:
using System;
public class Nested_For_Loop_Example2
{
public static void Main (string[] args)
{
int row=Convert.ToInt32(Console.ReadLine());
for(int i=1;i<=row;i++)
{
for(int j=1;j<=i;j++)
{
Console.Write("*");
}
Console.WriteLine();
}
}
}
Output
Enter The Number of Rows 10 * ** *** **** ***** ****** ******* ******** ********* **********C# Infinite for loop: An infinite loop is the one which iterates infinite number of times. the for loop becomes an infinite loop if the condition provided is never going to be fulfilled.
C# infinite for loop Example:
If we put two semicolons only in for loop then the loop will iterate till infinite times. this is the simplest way to create an infinite for loop.
using System;
public class InfiniteForLoopExample
{
public static void Main (string[] args)
{
for(;;)
{
Console.writeLine("this is an infinite loop");
}
}
}