using System;

using System.Linq.Expressions;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("****************** C# Equivalent Output **************************\n\n");

        int num = 0;

​

        if(num > 10)

        {

            Console.WriteLine("num is greater than 10");

        }

        else

        {

            Console.WriteLine("num is less than or equan to 10");

        }

        Console.WriteLine("\n\n***************** Expression Tree Output **************************\n\n");

        Expression conditionExpr = Expression.Condition(

            Expression.Constant(num > 10),

            Expression.Constant("num is greater than 10"),

            Expression.Constant("num is less than or equan to 10")

            );

​

        // The following statement first creates an expression tree,

        // then compiles it and then executes it.       

        Console.WriteLine(Expression.Lambda<Func<string>>(conditionExpr).Compile()());

    }

}