C# Do while Loop 
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Rakesh Kumar Sutar | 
12 January 2021 | 
5291
12 January 2021 | 5291
Introduction
The do while loop is the same as while loop except that it executes the code block at least once. The do-while loop starts with the do keyword followed by a code block and a Boolean expression with the while keyword. The do while loop stops execution exits when a Boolean condition evaluates to false. Because the while(condition) specified at the end of the block, it certainly executes the code block at least once.
Syntax
do
{
//code block
} while(condition);
Example - Do while
using System;
namespace Hello_world
{
class Program
{
static void Main(string[] args)
{
/* local variable definition */
int a = 10;
/* do loop execution */
do
{
Console.WriteLine("value of a: {0}", a);
a = a 1;
}
while (a < 20);
Console.ReadLine();
}
}
}
output
