How to escape message System.Int32 in C#

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I'm just beginning to learn C# so I have a question.

Why do I get the message System.Int 32[] ?

public static int[] GetFirstEvenNumbers(int count)
{
    int[] array = new int[count];

    for (int i = 1; i <= array.Length; i++)
        array[i - 1] = i * 2; 

    for (int j = 0; j < count; j++)
        Console.Write(array[j] + " ");                        

    return new int[count];         
}

public static void Main(string[] args)
{
    Console.Write(GetFirstEvenNumbers(5));
    Console.ReadKey();
}

What you Write to the console has type int[]. This type, int[], does not override ToString(). Therefore the behavior it inherits from object is used, and that is to simply return the full name of its type, which is System.Int32[].

What you want to do is create a string consisting of all the entries in the array, separated with some symbol. You can use string.Join for that. For example:

var firstFiveEven = GetFirstEvenNumbers(5);
var firstFiveEvenAsStringWithSeparators = string.Join(" - ", firstFiveEven);
Console.Write(firstFiveEvenAsStringWithSeparators);
Console.ReadKey();

Console.SetBufferSize(Int32, Int32) Method (System), public static void SetBufferSize (int width, int height); C# Copy. // This example demonstrates the Console.WindowLeft and Escape); // end do-while } // end try catch (IOException e) { Console.WriteLine(e.Message); } finally { Console. public struct Int32 : IComparable, IComparable< int >, IEquatable< int >, IFormattable. type int = struct interface IConvertible interface IFormattable. type int = struct interface IFormattable interface IConvertible. type int = struct interface IFormattable.


what Stuartd said is true: in your code assuming you want to write each integer of the array and then all the array in one time there is some changes need to be done to your code

1- returning new empty array or array of zeros in your method GetFirstEvenNumbers need to be replaced by the array variable from your code which hold the multiplied by two values.

2- since your method(function) return array of int then you need to convert that to string so that it could be written by the console a good c# method to use is string.join so your code after these changes should look something like this:

    public static int[] GetFirstEvenNumbers(int count)
    {
        int[] array = new int[count];

        for (int i = 1; i <= array.Length; i++)
            array[i - 1] = i * 2;
        // if you don't need to repeat the result twice get rid off the 
        // second for loop and Console.Write
        for (int j = 0; j < count; j++)
            Console.Write(array[j] + " ");

        return array;
    }

    public static void Main(string[] args)
    {
        Console.Write(string.Join(",",GetFirstEvenNumbers(5)));
        Console.ReadKey();
    } 

I hope this helps.

Migrate from Newtonsoft.Json to System.Text.Json, System.Text.Json focuses primarily on performance, security, and Where it does escape them, it does so by emitting a \ before the A non-string value received for a string field results in a JsonException with the following message: To support a dictionary with an integer or some other type as the key,  A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.


The reason for the bahaviour you see is because when you pass an object (regardless of type) to the Console.Write method then it will call the objects ToString() method. Some types have overridden this method in order to present the object or value in a way that makes sense for the type (for example, an integer would print its value).

Many objects have not overriden this method and thus they default back to Object.ToString() and the behaviour of Object.ToString() is to print out the type of the object.

You can read more about it here.

Int32 Struct (System), You can assign the value of an integer type whose range is a subset of the Int32 type. This is a widening conversion that does not require a cast operator in C#  Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Learn more Unable to cast object of type 'System.Int32' to type 'System.String' in DataReader.GetString()


Built-in reference types, The object type is an alias for System. The advantage of verbatim strings is that escape sequences are not processed, which makes it easy to public delegate void MessageDelegate(string message); public delegate int  An unhandled exception occurred while processing the request. InvalidCastException: Unable to cast object of type 'System.Int32' to type 'System.Int64'.


NullReferenceException Class (System), C# Copy. using System; using System.Collections.Generic; public class Example { public using System; public class Example { public static void Main() { int[] values = null; for (int ctr = 0 Gets a message that describes the current exception. A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.


Documentation comments, (that is, " List{T} "), or the XML escape syntax can be used (that is, " List<T> "). </example> /// </summary> public void Translate(int xor, int yor) { X += xor; Y += yor; } A void pointer is represented using a type name of System. public class NestedClass { private int value; } private string message;  Escape sequences are used in the programming languages C and C++, and their design was copied in many other languages such as Java and C#.An escape sequence is a sequence of characters that does not represent itself when used inside a character or string literal, but is translated into another character or a sequence of characters that may be difficult or impossible to represent directly.