static void Main(string[] args)
{
Account a = new Account();
a.Open(1, "Madhuri");
a.Deposit(1000);
a.Withdraw(200);
double balance = a.Getbalance();
string name = a.Accountname();
int num = a.Accountno();
Console.WriteLine("Account Details :");
Console.WriteLine("Name:{0}" + Environment.NewLine + "Number:{1}" + Environment.NewLine +
"Balance:{2}",
name, num, balance);
// Console.WriteLine("NewLine: {0} first line{0} second line{0} third line", Environment.NewLine);
}