Method overloading in wcf service?

You can check the following code. For more I have provided the link for reference.

[ServiceContract]
public interface ITest
{
    [OperationContract(Name="Method1")]
    string TestMethod(int para1,int para2);
    //Initail method
    [OperationContract(Name = "Method2")]
    string TestMethod(string para1, string para2);
    //Overloading on the basis of type of parameters.
    [OperationContract(Name = "Method3")]
    string TestMethod(int para1, string para2);
    //Overloading on the basis of  an order of parameters.
    [OperationContract(Name = "Method4")]
    string TestMethod(int para1, string para2,double para3);
    //Overloading on the basis of the numbers of parameters}
}

using WCFConsoleClentApp.MyTest;
namespace WCFConsoleClentApp
{
    class Program
    {
        static void Main(string[] args)
        {
            TestClient client = new TestClient();
            string callMethod1 = client.Method1(1, 1);
            string callMethod2 = client.Method2("Test", "Test");
            string callMethod3 = client.Method3(1, "Test");
            string callMethod4 = client.Method4(1, "Test", 3.5);
        }
    }
}




I used the link below 

http://www.codeproject.com/Tips/656042/Method-Overloading-in-WCF