Programming Forums > Application Development > C#

357mag · May 20th, 2007, 6:32 AM

I'm writing a program where I'm writing my own method to calculate something. The user is asked to enter 3 integers, and then the program calls a method called Sum to compute the sum and display it. But I'm getting a compiler error. I don't know why since I'm taking a concept from my book and just applying it to my own program, but what I got written is pretty much exactly the same way the program looks in the book. Here is my program:

(Toggle Plain Text)

using System;

    class Program
    {
        static void Main()
        {
            int number1, number2, number3;

            Console.Write("Enter 3 integers: ");
            number1 = Convert.ToInt32(Console.ReadLine());
            number2 = Convert.ToInt32(Console.ReadLine());
            number3 = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("The sum is ", Sum(number1, number2, number3));
            Console.WriteLine();
        }
    }

static int Sum(int a, int b, int c)
{
    int sumTotal;
    
    sumTotal = a + b + c;

    return sumTotal;
}

But the compiler flags the word "int" right after the word "static" in my method definition and says something about a class, delegate, enum, or
struct is expected.

So I'm kind of confused as to why there is a problem.

cloud- · May 20th, 2007, 6:55 AM

the Sum() function or any for that matter needs to be in the Program class or a new class/struct etc. ie...

 c# Syntax (Toggle Plain Text) 
using System;
class Program
{
 
// ..... main block { }
 
static int Sum()
{
// .... code
}
}
using System;
class Program
{

// ..... main block { }

static int Sum()
{
// .... code
}
}

P.S the code will compile then but there are a couple of things:
Console.WriteLine("The sum is ", Sum(number1, number2, number3)); // "," seperates the parameters passed so unless the WriteLine() function's second parameter also displays text it won't work
// should be
Console.WriteLine("The sum is " + Sum(number1, number2, number3)); // + to join the string and functions return value

^-- if that's how it was in the book and it works sorry, the book > me =P

* might want to think about adding a Console.ReadKey() so you can see the results

357mag · May 20th, 2007, 7:21 AM

Yeah, I just discovered that little error. My program works good now, but how do you split a long line of code into two lines? For example I have this line of code that is rather long:

(Toggle Plain Text)

Console.WriteLine("{0}{1}", "The largest is ", Maximum(number1, number2, number3));

Not only is it too long to print on one line when I print my code out, but even in the editor window it looks too long. I tried one method of breaking it up but the compiler wouldn't go for it.

xavier · May 20th, 2007, 1:07 PM

(Toggle Plain Text)

Console.WriteLine("{0}{1}", "The largest is ",
 Maximum(number1, number2, number3));

Just hit enter

. Unless you're in a string , the compiler won't mind.

May 20th, 2007, 6:32 AM	#1
357mag Hobbyist Programmer Join Date: Mar 2005 Posts: 148 Rep Power: 4	Slight problem with my code I'm writing a program where I'm writing my own method to calculate something. The user is asked to enter 3 integers, and then the program calls a method called Sum to compute the sum and display it. But I'm getting a compiler error. I don't know why since I'm taking a concept from my book and just applying it to my own program, but what I got written is pretty much exactly the same way the program looks in the book. Here is my program: (Toggle Plain Text) using System; class Program { static void Main() { int number1, number2, number3; Console.Write("Enter 3 integers: "); number1 = Convert.ToInt32(Console.ReadLine()); number2 = Convert.ToInt32(Console.ReadLine()); number3 = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("The sum is ", Sum(number1, number2, number3)); Console.WriteLine(); } } static int Sum(int a, int b, int c) { int sumTotal; sumTotal = a + b + c; return sumTotal; } using System; class Program { static void Main() { int number1, number2, number3; Console.Write("Enter 3 integers: "); number1 = Convert.ToInt32(Console.ReadLine()); number2 = Convert.ToInt32(Console.ReadLine()); number3 = Convert.ToInt32(Console.ReadLine()); Console.WriteLine("The sum is ", Sum(number1, number2, number3)); Console.WriteLine(); } } static int Sum(int a, int b, int c) { int sumTotal; sumTotal = a + b + c; return sumTotal; } But the compiler flags the word "int" right after the word "static" in my method definition and says something about a class, delegate, enum, or struct is expected. So I'm kind of confused as to why there is a problem.

May 20th, 2007, 6:55 AM	#2
cloud- Hobbyist Programmer Join Date: Jan 2005 Posts: 110 Rep Power: 4	the Sum() function or any for that matter needs to be in the Program class or a new class/struct etc. ie... c# Syntax (Toggle Plain Text) using System; class Program { // ..... main block { } static int Sum() { // .... code } } using System; class Program { // ..... main block { } static int Sum() { // .... code } } P.S the code will compile then but there are a couple of things: Console.WriteLine("The sum is ", Sum(number1, number2, number3)); // "," seperates the parameters passed so unless the WriteLine() function's second parameter also displays text it won't work // should be Console.WriteLine("The sum is " + Sum(number1, number2, number3)); // + to join the string and functions return value ^-- if that's how it was in the book and it works sorry, the book > me =P * might want to think about adding a Console.ReadKey() so you can see the results Last edited by cloud-; May 20th, 2007 at 7:22 AM.

May 20th, 2007, 7:21 AM	#3
357mag Hobbyist Programmer Join Date: Mar 2005 Posts: 148 Rep Power: 4	Yeah, I just discovered that little error. My program works good now, but how do you split a long line of code into two lines? For example I have this line of code that is rather long: (Toggle Plain Text) Console.WriteLine("{0}{1}", "The largest is ", Maximum(number1, number2, number3)); Console.WriteLine("{0}{1}", "The largest is ", Maximum(number1, number2, number3)); Not only is it too long to print on one line when I print my code out, but even in the editor window it looks too long. I tried one method of breaking it up but the compiler wouldn't go for it.

May 20th, 2007, 1:07 PM	#4
xavier Professional Programmer Join Date: Oct 2004 Location: .ro Posts: 381 Rep Power: 4	(Toggle Plain Text) Console.WriteLine("{0}{1}", "The largest is ", Maximum(number1, number2, number3)); Console.WriteLine("{0}{1}", "The largest is ", Maximum(number1, number2, number3)); Just hit enter . Unless you're in a string , the compiler won't mind. __________________ Don't take life too seriously, it's not permanent !

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Programming Forums > Application Development > C#

Slight problem with my code