C# I get System.Object[] instead of the value in array

Question

Another question about arrays. When i create an array and fill it from keyboard, the console shows several System.Object[] instead of the value I set. For example, if i create a [5] array i get 36 System.Object[] instead of my 5 values. Why is that? This is a code I´m using:

 object[] row = new object[5];

 public void fill()
    {
        for (int i = 0; i < 5; i++)
            {
                Console.WriteLine("Set the values" + (i+1));
                row[i] = Console.ReadLine();
            }
        Console.ReadKey();
    }

 public void view()
    {
        Console.WriteLine("The values are:");
        for (int i = 0; i <= 5; i++)
        {
            Console.Write("\n");
            for (int j = 0; j <= 5; j++)
            {
                Console.Write(row);
            }
        }
        Console.ReadKey();
    }

    static void Main(string[] args)
    {
        Program objeto = new Program();

        objeto.fill();
        objeto.view();

        Console.ReadKey();
    }

There are no error messages, but when on screen i get this afer setting the 5 values:

The values are:

System.Object[]System.Object[]System.Object[]System.Object[]System.Object[]System.Object[] System.Object[]System.Object[]System.Object[]System.Object[]System.Object[]System.Object[] System.Object[]System.Object[]System.Object[]System.Object[]System.Object[]System.Object[] System.Object[]System.Object[]System.Object[]System.Object[]System.Object[]System.Object[] System.Object[]System.Object[]System.Object[]System.Object[]System.Object[]System.Object[] System.Object[]System.Object[]System.Object[]System.Object[]System.Object[]System.Object[]

What can I do?

MarcinJuraszek · Accepted Answer · 2014-05-02 23:33:00Z

6

I believe it should be row[j]

for (int j = 0; j <= 5; j++)
{
    Console.Write(row[j].ToString());
}

edited May 2, 2014 at 23:33

MarcinJuraszek

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answered May 2, 2014 at 23:32

Sunny

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1 Comment

Gabbo2483 Over a year ago

You are correct, should be "j" instead of "i". OMG!!! C´mon C#, it´s just a letter!! :D Thank you for your answer :)

Icemanind · Accepted Answer · 2014-05-02 23:34:50Z

4

Because row is an array, the default .ToString() method is printing the type, which is System.Object[].

Try writing the value of row[j] instead the value of row.

Except, you seem to have two loops that almost seem like you are wanting to print a multidimensional array, which your array isn't. So the outer for loop is unnecessary, unless you are wanting to print 5 rows of the same data.

answered May 2, 2014 at 23:34

Icemanind

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5 Comments

Gabbo2483 Over a year ago

Yeah, you are correct, i made the changes you mention and now i get on screen the values, but am recieving an IndexOutOfRangeException after the array is shown. T_T

Sunny Over a year ago

Since arrays start from zero, your condition in for loop should be j <= 4 or j<5

Icemanind Over a year ago

What @Sunny says is correct. You either need to change your condition to j <= 4 or j < 5.

Gabbo2483 Over a year ago

Yeah, I see it, and you are all right, just removed the extra "j" loop and modified both loops to i<=4 and now works perfectly, thank you all for your time. I´m learning more in a day here at stackoverflow that the last motnh at school :D

Icemanind Over a year ago

@Gabbo2483 - Yeah, remember that in a for loop, the loop continues until the condition is true. Which means, when you had j <= 5, then it continues through the loop an extra iteration then what was needed.

alexMil · Accepted Answer · 2014-05-02 23:38:28Z

0

Change your view to this...

public void view()
    {
        Console.WriteLine("The values are:");
        for (int i = 0; i <= 4; i++)
        {
            Console.Write("\n");
            Console.Write(row[i]);
        }
        Console.ReadKey();
    }

answered May 2, 2014 at 23:38

alexMil

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