C# - Break Statement

C# break Statement

The break statement in C# has following two usage −

• When the break statement is encountered inside a loop, the loop is immediately terminated and program control resumes at the next statement following the loop.

• It can be used to terminate a case in the switch statement.

If you are using nested loops (i.e., one loop inside another loop), the break statement will stop the execution of the innermost loop and start executing the next line of code after the block.

Syntax

The syntax for a break statement in C# is as follows −

break;

Flow Diagram

Using break Statement with while Loop

In this example, we terminate the while loop after it reaches 15 −

using System;
namespace Loops {
   class Program {
      static void Main(string[] args) {
         /* local variable definition */
         int a = 10;
         
         /* while loop execution */
         while (a < 20) {
            Console.WriteLine("value of a: {0}", a);
            a++;
            
            if (a > 15) {
               /* terminate the loop using break statement */
               break;
            }
         }
         Console.ReadLine();
      }
   }
} 

Output

When the above code is compiled and executed, it produces the following result −

value of a: 10
value of a: 11
value of a: 12
value of a: 13
value of a: 14
value of a: 15

Using break Statement with for Loop

In this example, we terminate the for loop if we find the first even number. We then display the first even number −

using System;
class BreakExample {
   static void Main() {
      for (int i = 1; i <= 10; i++) {
         if (i % 2 == 0) {
            Console.WriteLine("First even number found: " + i);
            break;
         }
         Console.WriteLine("Checking number: " + i);
      }
      Console.WriteLine("Loop terminated after finding the first even number.");
   }
}

Output

The above code produces the following Output −

Checking number: 1
First even number found: 2
Loop terminated after finding the first even number.