using System;

namespace APRON
{
    class Class1
    {
        [STAThread]
        static void Main(string[] args)
        {
            // Declare myNumber as integer. 
            // It can now hold numbers (..,-2,-1,0,1,2,3,...n). 
            // The default value = 0.
            int myNumber;
            // Declare myDecimalNumber as double. 
            // It can now hold decimalnumbers ( -2.7 or 1.5)
            double myDecimalNumber;    
            // Declare myChar as char. 
            // It can hold a character.
            string myString;        
            // Declare myBool as boolean. 
            // It can hold true or false (1 or 0). The default value = false.
            bool myBool;            

            // Define the variable myNumber and set value equal to 5;
            myNumber = 5;
            // Define the variable myDecimalNumber and set value equal to 8.8;
            myDecimalNumber = 8.8;
            // Define the variable myChar as the character a.
            myString = "Hello!";
            // Define the variable myBool as true.
            myBool = true;

            Console.WriteLine(myNumber);        // Print Integer
            Console.WriteLine(myDecimalNumber); // Print Double
            Console.WriteLine(myString);        // Print String
            Console.WriteLine(myBool);          // Print Boolean

            Console.ReadLine();                 // Wait for a key to be pressed
        }
    }
}