How can I get output all the three values of XYZ in one line?

Question

3.00/5 (1 vote)

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C#

using System;
class two
{
   public static void Main()
   {
       double x=3.4;

           double y= 7.0;
       double z;
       z=( x+y);
       Console.WriteLine ("x="+ x,"y=" +y, "z= " + z);
   }
}

Posted 4-Mar-11 5:11am

rickysharp

Updated 4-Mar-11 5:24am

Sandeep Mewara

v2

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3 solutions

Solution 3

The reason to avoid string concatenation operator is this: strings are immutable.
Another reason is the code is less readable is used like in the Question.

So, the problem with immutable strings is this. What happens here:

C#

string result = string.Empty;
int count = 100;
for (int index = 0; index < count; index++)
    result += CalculateNext(index); //some function returning string

The problem here is at every plus string is not appended. Instead, new object is created and old string value (ever increasing) will be copied and assigned to the same variable result.

This is slow, so System.Text.StringBuilder should be used instead. If used sparingly for ad-hoc purposes like in the present Question, concatenation is not a problem, but for readability string.Format is the best; it also has better performance.

—SA

Posted 4-Mar-11 9:32am

Sergey Alexandrovich Kryukov

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Henry Minute · Accepted Answer · 2011-03-04T05:25:00

Solution 2

Or:

C#

Console.WriteLine("x = {0}, y = {1}, z = {2}", x, y, z);

Posted 4-Mar-11 5:25am

Henry Minute

Comments

Toli Cuturicu 4-Mar-11 12:09pm

Way better using string formatting!

R. Giskard Reventlov 4-Mar-11 12:36pm

Good call: I was bit too quick with my response (even though, technically, it's fine, Henry's is better).

Toli Cuturicu 4-Mar-11 12:49pm

You got my 4 anyway.

Sergey Alexandrovich Kryukov 4-Mar-11 15:24pm

Yes of course, my 5, and "+" would be not good enough.
--SA

Sergey Alexandrovich Kryukov 4-Mar-11 15:33pm

I also decided to add detailed explanation of what's wrong with concatenation, please see.
--SA

**R. Giskard Reventlov** · Accepted Answer · 2011-03-04T05:15:00

Solution 1

Do you mean something like:

Console.WriteLine ("x=" + x + " y=" + y + " z=" + z);

Posted 4-Mar-11 5:15am

R. Giskard Reventlov

Comments

rickysharp 4-Mar-11 11:28am

thank you