Object doesn't recognized, how to solve?

Question

I have a simple code to work with getters and setters. I have created a object from book class in another class. But this object doesn't recognize by the class. Why is that? I get this error

An object reference is required for the nonstatic field, method, or property 'member'

class Book
{
    private int num;

    public void setNum(int no)
    {
        this.num = no;
    }      
    public int getNum()
    {
        return this.num;
    }


}

class Program
{
    Book bb = new Book();
    public static void Main()
    {
        bb.setNum(10);
        Console.WriteLine("Insert value" + bb.getNum);
    }
}

You don't write getters and setters in C# like that. `public int Num { get; set; }` is the idiomatic property. — crashmstr, Oct 10 '17 at 14:59
In short, you can't directly access `bb` from within `Main()` because `Main()` is static and `bb` is not. Did you mean to make `bb` static as well? — David, Oct 10 '17 at 14:59
`Main` is a static method. That means that it doesn't apply to any specific instance of `Program` `bb` is a non-static field, and requires an instance — Sam I am says Reinstate Monica, Oct 10 '17 at 15:00
@UnholySheep, It's not the problem. The object 'bb' creates the problem — Joe, Oct 10 '17 at 15:00
@Joe it _will be_ a problem after the OP gets over the static/instance problem — Sam I am says Reinstate Monica, Oct 10 '17 at 15:01

score 0 · Answer 1 · answered Oct 10 '17 at 14:59

0

GetNum is a function, you have to add () to it to get the value.

If you don't do this, C# is looking for a property with this name and this does not exist.

answered Oct 10 '17 at 14:59

Jerodev

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Through true that is not the main issue here and not the reason for the compilation error – Gilad Green Oct 10 '17 at 15:00

Object doesn't recognized, how to solve?

1 Answers1