Convert.ToString() vs ToString() vs new string()

I am doing string reverse while I have some problem with that. I have added code and O/P below. Please give me the detail explanation for this solution. I am beginner in C#.

CODE

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string str = "ganesh";
Console.WriteLine(new string(str.Reverse().ToArray()));
Console.WriteLine(Convert.ToString(str.Reverse().ToArray()));
Console.WriteLine((str.Reverse().ToArray()).ToString());
Console.ReadKey();
}
}
}

OUTPUT

hsenag
System.Char[]
System.Char[]

here is the changes between them :

1. Convert.ToString() --> Handles null values.

2.ToString() --> -It's Not.

- type issue then throw NULL reference exception.

3. new String() --> Basically it's a Constructor overload with multiple methods.

Here is the code for better understanding :

protected void Button1_Click(object sender, EventArgs e)

{

string str = "ganesh";

string temp = new string(str.Reverse().ToArray()); // you are using overloaded method .So, need to use like this.

Console.WriteLine(String.Format(new string(str.Reverse().ToArray()))); //Possiblly this will help you for printing your result.

//Console.WriteLine --> there is 19 overloaded methods of "Console.WriteLine" please look into that might be help you next time.

//Console.WriteLine(new string(str.Reverse().ToArray()));

//Console.WriteLine(Convert.ToString(str.Reverse().ToArray()));

//Console.WriteLine((str.Reverse().ToArray()).ToString());

Console.ReadKey();

}

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Sharad Lavand8y ago
here is the changes between them :

1. Convert.ToString() --> Handles null values.

2.ToString() --> -It's Not.
- type issue then throw NULL reference exception.

3. new String() --> Basically it's a Constructor overload with multiple methods.

Here is the code for better understanding :

protected void Button1_Click(object sender, EventArgs e)
{
string str = "ganesh";
string temp = new string(str.Reverse().ToArray()); // you are using overloaded method .So, need to use like this.
Console.WriteLine(String.Format(new string(str.Reverse().ToArray()))); //Possiblly this will help you for printing your result.
//Console.WriteLine --> there is 19 overloaded methods of "Console.WriteLine" please look into that might be help you next time.
//Console.WriteLine(new string(str.Reverse().ToArray()));
//Console.WriteLine(Convert.ToString(str.Reverse().ToArray()));
//Console.WriteLine((str.Reverse().ToArray()).ToString());
Console.ReadKey();
}