what is heap value here?

Question

1.00/5 (2 votes)

See more:

what is heap value here ? again something to know how its steps in memory ??? i tried alot and at last i get by my knowledge it can be value of x which is basically " Hello World !"

many thanks

C#

class MyClass
{
    String M = " ";

    public MyClass(String message)
    {
        M = value;
    }
}

MyClass X;
X = new MyClass(" Hello World! ");

Posted 27-Nov-12 20:20pm

lida zar

Updated 27-Nov-12 20:24pm

lukeer

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

OriginalGriff · Answer 1 · 2012-11-27T20:37:00

It's hard to work out what you want to know, but hopefully I have got the gist of your question...

Ignoring that that won't compile, and needs a fair number of changes to do what (I suspect) you intended it to, you have got the wrong idea a bit as well.

If I fix your code a little:

C#

class MyClass
{
    public string M = " ";
 
    public MyClass(string message)
    {
        M = message;
    }
}
 
MyClass X;
X = new MyClass(" Hello World! ");

(Which is no where near perfect, but you'll improve it a bit later - I just want to explain what goes where)
The code creates three items on the heap:
1) A string containing a space
2) A sting containing " Hello World! "
3) A class instance of MyClass

When you call the MyClass constructor by using the new keyword, the parameter string instance is constructed, and then space is allocated for the class instance, finally it's fields are constructed, so space is allocated for a string containing a space. The code of the constructor is then called and the string field M reference is overwritten with the parameter string reference. (This is hard to explain without pictures, but hopefully you will get the idea).

(And yes, purists, strings are special - let it ride for the moment, ok? Let's not confuse the poor soul!)