Need Help With a Simple C# Program!

[TΞΞNSTAR™]

Guys ..

Im a newbie to C# and I need some guidance to rectify this confusion I'm facing.

What I wanted to create is a simple calculation and I can do it in the Main method it self. But I Created a Class named "add" so that I can call it to in the main method.

I initialized int i and j in the main program and why cant I use it in the add class?

Below is my code snippet

using System;


namespace AddMinusDivideMultiply
{
    class Program
    {
        public static void Main(string[] args)
        {
            Console.Write("Please Enter The First Number  :");
            string temp = Console.ReadLine();
            int i = Int32.Parse(temp);

            Console.Write("Please Enter The Second Number :");
            temp = Console.ReadLine();
            int j = Int32.Parse(temp);

            Addition.Add();
        }
    }

    class Addition
    {
        public static void Add()
        {
            int add;
            add = i + j;
            Console.WriteLine("The Addition Of The First and The Second Number is {0}", add);
        }
    }
}

Error which I'm getting is

Error 1 The name 'i' does not exist in the current context
Error 1 The name j' does not exist in the current context

Please explain.. Thank you in advance...

 

[koondeGoda]

for i and j has been declared inside the main they are not visible to class Addition

you can define method Add to take two int parameters and pass i,j from the main

 

[*danushka*]

Guys ..

Im a newbie to C# and I need some guidance to rectify this confusion I'm facing.

What I wanted to create is a simple calculation and I can do it in the Main method it self. But I Created a Class named "add" so that I can call it to in the main method.

I initialized int i and j in the main program and why cant I use it in the add class?

Below is my code snippet

using System;


namespace AddMinusDivideMultiply
{
    class Program
    {
        public static void Main(string[] args)
        {
            Console.Write("Please Enter The First Number  :");
            string temp = Console.ReadLine();
            int i = Int32.Parse(temp);

            Console.Write("Please Enter The Second Number :");
            temp = Console.ReadLine();
            int j = Int32.Parse(temp);

            Addition.Add();
        }
    }

    class Addition
    {
        public static void Add()
        {
            int add;
            add = i + j;
            Console.WriteLine("The Addition Of The First and The Second Number is {0}", add);
        }
    }
}

Error which I'm getting is

Please explain.. Thank you in advance...

machan register this site & ask your questions,u can get lot of help here.....it's free helping form....
http://www.vbforums.com/forumdisplay.php?f=30

 

[TΞΞNSTAR™]

BUMP!

 

[TΞΞNSTAR™]

for i and j has been declared inside the main they are not visible to class Addition

you can define method Add to take two int parameters and pass i,j from the main

Thank you bro

And Can you explain me widely with the code snippet which I should write to what you told me !

 

[TΞΞNSTAR™]

machan register this site & ask your questions,u can get lot of help here.....it's free helping form....
http://www.vbforums.com/forumdisplay.php?f=30

Thanks bro Il deffa chck it out

 

[Eranda200]

heyyy Teenstar bro... long tym no see eh???

 

[¤--bACarDi--¤]

i & j are valid only within the class "Program" scope. they ain't visible to the outside

 

[3.5G]

I am not an expert in C# but I know JAVA

try creating an object of Addition class and call the Add()
and also use some parameters like Add(i,j)

 

[*danushka*]

Thanks bro Il deffa chck it out

I'm also a member of this site.but not C# form.just excel ,VB macros.etc..

 

[TΞΞNSTAR™]

heyyy Teenstar bro... long tym no see eh???

Heyy, Attlaasttt... sum1 hu remembers me ova here LOL! kinda buzy wit studiez nd stuff .. dts y kept me behind!! hpe u guyz r doin gud!

 

[¤--bACarDi--¤]

namespace AddMinusDivideMultiply
{
    class Program
    {
        public static void Main(string[] args)
        {
            Console.Write("Please Enter The First Number  :");
            string temp = Console.ReadLine();
            int i = Int32.Parse(temp);

            Console.Write("Please Enter The Second Number :");
            temp = Console.ReadLine();
            int j = Int32.Parse(temp);

            Addition.Add(j , i);
        }
    }

    class Addition
    {
        public static void Add(int j , int i)
        {
            int add = i + j;
            Console.WriteLine("The Addition Of The First and The Second Number is {0}", add);
        }
    }
}

try this. can't compile VS isn't installed

 

[koondeGoda]

Thank you bro

And Can you explain me widely with the code snippet which I should write to what you told me !

itz simple approach ! for you hav used static methods , pass the specified values to the redfinied Add method

namespace ConsoleApplication1
{
    class Program
    {
        

        public static void Main(string[] args)
        {
            Console.Write("Please Enter The First Number  :");
            string temp = Console.ReadLine();
            int i = Int32.Parse(temp);

            Console.Write("Please Enter The Second Number :");
            temp = Console.ReadLine();
            int j = Int32.Parse(temp);

            [COLOR="Red"]Addition.Add(i,j);[/COLOR]
        }
    }

    class Addition
    {
        public static void Add([COLOR="#ff0000"]int i , int j[/COLOR])
        {
            int add;
            add = i + j;
            Console.WriteLine("The Addition Of The First and The Second Number is {0}", add);
        }
    }
}

 

[buddhi9077]

for i and j has been declared inside the main they are not visible to class Addition

you can define method Add to take two int parameters and pass i,j from the main

u got the anwer ne...

 

[koondeGoda]

namespace AddMinusDivideMultiply
{
    class Program
    {
        public static void Main(string[] args)
        {
            Console.Write("Please Enter The First Number  :");
            string temp = Console.ReadLine();
            int i = Int32.Parse(temp);

            Console.Write("Please Enter The Second Number :");
            temp = Console.ReadLine();
            int j = Int32.Parse(temp);

            Addition.Add(j , i);
        }
    }

    class Addition
    {
        public static void Add(int j , int i)
        {
            int add = i + j;
            Console.WriteLine("The Addition Of The First and The Second Number is {0}", add);
        }
    }
}

try this. can't compile VS isn't installed

same thing i said! cant you just suggest a new OO approach?

my C# is not that good these days!

 

[¤--bACarDi--¤]

I am not an expert in C# but I know JAVA

try creating an object of Addition class and call the Add()
and also use some parameters like Add(i,j)

no need to create Addition class objects, since the Add method declared as static isn't it ?

 

[koondeGoda]

This method also works using global static variables

namespace ConsoleApplication1
{
    class Program
    {
        [COLOR="Red"]public static int i, j;[/COLOR]

        public static void Main(string[] args)
        {
            Console.Write("Please Enter The First Number  :");
            string temp = Console.ReadLine();
             i = Int32.Parse(temp);

            Console.Write("Please Enter The Second Number :");
            temp = Console.ReadLine();
             j = Int32.Parse(temp);

            Addition.Add();
        }
    }

    class Addition
    {
        public static void Add()
        {
            int add;
            add = [COLOR="#ff0000"]Program.i + Program.j;[/COLOR]
            Console.WriteLine("The Addition Of The First and The Second Number is {0}", add);
        }
    }
}

 

[¤--bACarDi--¤]

same thing 1/3 codes can anyone run it and tell me whether its working or not

namespace ConsoleApplication1
{
    class Program
    {
        

        public static void Main(string[] args)
        {
            Console.Write("Please Enter The First Number  :");
            int i = Int32.Parse(Console.ReadLine());
            Console.Write("Please Enter The Second Number :");
            int j = Int32.Parse(Console.ReadLine());
            Console.WriteLine("The Addition Of The First and The Second Number is {0}", Add(i , j));
          
        }
    }

    class Addition
    {
        public static int Add(int i , int j)
        {
            return (i+j);
            
        }
    }
}

 

[¤--bACarDi--¤]

same thing i said! cant you just suggest a new OO approach?

my C# is not that good these days!

lol same here stuck with java these days

 

[nadun07]

same thing 1/3 codes can anyone run it and tell me whether its working or not

namespace ConsoleApplication1
{
    class Program
    {
        

        public static void Main(string[] args)
        {
            Console.Write("Please Enter The First Number  :");
            int i = Int32.Parse(Console.ReadLine());
            Console.Write("Please Enter The Second Number :");
            int j = Int32.Parse(Console.ReadLine());
            Console.WriteLine("The Addition Of The First and The Second Number is {0}", Add(i , j));
          
        }
    

   [COLOR="Red"] //class Addition
    //{[/COLOR]
        public static int Add(int i , int j)
        {
            return (i+j);
            
        }
    }
[COLOR="red"]//}[/COLOR]
}

this works hehe..