using statement | C# Online Compiler

using statement by harc9450

using System;
					
public class Program
{
	public static void Main()
	{
		/* **using statement**
		* using used to add the namespace into the page
		* using calls Dispose() method after using -block is left, even if the code throws an exception.
		* so you usually use using, if code clean-up is required after them.
		* using 'allows' you to specify multiple resources in single statement.
		* The resources specified within using block must implement the IDisable interface.
		* Framework invokes the Dispose method of the object specified within the using statement when block is exited.
		*/
		using(Example2 obj2 = new Example2())
		using( Example obj = new Example())
        {
           obj.DoSomeTask();
		   obj2.DoSomeTask();
        }

        Console.WriteLine("End");
	}
}

public class Example: IDisposable
{
   public void Dispose()
   {
       Console.WriteLine("Disposing an object ...");
   }
   public void DoSomeTask()
   {
       Console.WriteLine("Doing smething ...");
   }
}

public class Example2: IDisposable
{
   public void Dispose()
   {
       Console.WriteLine("Disposing an object2 ...");
   }
   public void DoSomeTask()
   {
       Console.WriteLine("Doing smething2 ...");
   }
}

​x
 
using System;
                    
public class Program
{
    public static void Main()
    {
        /* **using statement**
        * using used to add the namespace into the page
        * using calls Dispose() method after using -block is left, even if the code throws an exception.
        * so you usually use using, if code clean-up is required after them.
        * using 'allows' you to specify multiple resources in single statement.
        * The resources specified within using block must implement the IDisable interface.
        * Framework invokes the Dispose method of the object specified within the using statement when block is exited.
        */
        using(Example2 obj2 = new Example2())
        using( Example obj = new Example())
        {
           obj.DoSomeTask();
           obj2.DoSomeTask();
        }
​
        Console.WriteLine("End");
    }
}
​
public class Example: IDisposable
{
   public void Dispose()
   {
       Console.WriteLine("Disposing an object ...");
   }
   public void DoSomeTask()
   {
       Console.WriteLine("Doing smething ...");
   }
}
​
public class Example2: IDisposable
{
   public void Dispose()
   {
       Console.WriteLine("Disposing an object2 ...");
   }
   public void DoSomeTask()
   {
       Console.WriteLine("Doing smething2 ...");
   }
}

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Cached Result
Last Run:	4:26:35 pm
Compile:	0.024s
Execute:	3.07s
Memory:	2.78Mb
CPU:	3.094s

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