SO C# Threading Multi Param

using System;
using System.Threading;


public static class ThreadTest {


    public static void Main () {

        Thread t=new Thread(WriteString);
        t.Start(new Object [] {(String)"y", (Int32)10});
        Thread u=new Thread(WriteString);
        u.Start(new Object [] {(String)"x", (Int32)25});

        t.Join();
        u.Join();

    }


    private static void WriteString (Object o) {

        Object [] param=(Object [])o;
        String message=(String)param[0];
        Int32 count=(Int32)param[1];

        for (Int32 i=0;i<count;++i) Console.WriteLine(message);

    }


}