C#

class Program
{
    readonly static object obj1 = new object();

    static void F1()
    {
        if (Monitor.TryEnter(obj1, TimeSpan.FromSeconds(0.3)))
        {
            Console.Write("1");
            Monitor.Exit(obj1);
        }
    }
    static void F2()
    {
        if (Monitor.TryEnter(obj1, TimeSpan.FromSeconds(0.3)))
        {
            Console.Write("2");
            Monitor.Exit(obj1);
        }
    }

    static void Main(string[] args)
    {
        Task[] tasks = new[]
        {
            Task.Factory.StartNew(() => { for (int i = 0; i < 100; i++) F1(); }),
            Task.Factory.StartNew(() => { for (int i = 0; i < 100; i++) F2(); }),
        };
        Task.WaitAll(tasks);
        Console.WriteLine();
        Console.WriteLine("all done");
        Console.ReadKey();
    }
}

numeracy wrote:

I want to find a solution, in which using two locking objects, mentioned above.

11111111111111111....(100 times)
222222222............ (100 times)

R@vuri wrote:

can u plz anybody give me the code........

//cntrl- ID of the parent Check box
//grd - Cliend ID of the HTML Table or GridView in which all the check boxes 
//      are present
// indCat - 1 or 2 indicates call from parent or child


function SelectAll(cntrl,grd,indCat)
{
    var grdComp = document.getElementById(grd);          
    
    if(indCat == '1')    
    {
        for(i=1;i<=grdComp.getElementsByTagName('input').length-1;i++)
        {
            grdComp.getElementsByTagName('input')[i].checked = cntrl.checked;
        }
    }
    else if(indCat == '2')
    { 
        var chkInd = true;
        for(i=1;i<=grdComp.getElementsByTagName('input').length-1;i++)
        {                 
            if(grdComp.getElementsByTagName('input')[i].checked == false)
            {
                chkInd = false;
            }                    
        }
        grdComp.getElementsByTagName('input')[0].checked = chkInd;             
    }
}