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tanjiajun_34
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 Posted: Sat May 29, 2010 11:07 pm Post subject: C# Method Question |
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I am learning C# in school. I have a question about method.
May I know whats the private for?
| Code: | private bool IsPrime(int num)
{
} |
But
| Code: | bool IsPrime(int num)
{
}
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Works too?...
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Flyte
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| Posted: Sat May 29, 2010 11:36 pm Post subject: |
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| In a class everything is private by default. So yes, it is optional in a class but you should add it anyways (at least, I do).
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tanjiajun_34
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| Posted: Sun May 30, 2010 8:35 am Post subject: |
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| Oh. So, if I type in public, what will happen? What the different with private and public?
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TROLOLOLOLOLOLOLOLOLOLOLO
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| Posted: Sun May 30, 2010 11:17 am Post subject: |
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| Public allows it to be accessed by other methods. Private dos not.
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tombana
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| Posted: Sun May 30, 2010 12:24 pm Post subject: |
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| CometJack wrote: | | Public allows it to be accessed by other methods. Private dos not. |
Not completely correct. public allows the methods to be used from other classes, private only allows it to be used from methods in the same class.
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Flyte
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| Posted: Sun May 30, 2010 12:34 pm Post subject: |
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| tombana wrote: | | CometJack wrote: | | Public allows it to be accessed by other methods. Private dos not. |
Not completely correct. public allows the methods to be used from other classes, private only allows it to be used from methods in the same class. |
There are two other access modifiers as well. 'protected' allows inheriting classes to use the method, and 'internal' is essentially 'public' but only to classes in the same assembly.
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potaters
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| Posted: Wed Jun 02, 2010 2:14 pm Post subject: |
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| CometJack wrote: | | Public allows it to be accessed by other methods. Private dos not. |
I'm pretty sure that's Java.
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TROLOLOLOLOLOLOLOLOLOLOLO
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| Posted: Wed Jun 02, 2010 7:04 pm Post subject: |
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| xen0r wrote: | | CometJack wrote: | | Public allows it to be accessed by other methods. Private dos not. |
I'm pretty sure that's Java. |
Nah, I think it's just about every programming language that has that feature  Though I am not 100% correct, as I was corrected in a post above.
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potaters
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| Posted: Wed Jun 02, 2010 7:07 pm Post subject: |
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| CometJack wrote: | | xen0r wrote: | | CometJack wrote: | | Public allows it to be accessed by other methods. Private dos not. |
I'm pretty sure that's Java. |
Nah, I think it's just about every programming language that has that feature Though I am not 100% correct, as I was corrected in a post above. |
I thought it was different for C#, meh, I've only done a little C#.
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TROLOLOLOLOLOLOLOLOLOLOLO
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| Posted: Wed Jun 02, 2010 7:28 pm Post subject: |
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| xen0r wrote: | | CometJack wrote: | | xen0r wrote: | | CometJack wrote: | | Public allows it to be accessed by other methods. Private dos not. |
I'm pretty sure that's Java. |
Nah, I think it's just about every programming language that has that feature Though I am not 100% correct, as I was corrected in a post above. |
I thought it was different for C#, meh, I've only done a little C#. |
It's okay I'm not a master at C# though I've done quite a bit of simple applications and few difficult ones.
You can check some of my released C# sources here -> http://forum.cheatcity.org/forum-52.html
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1929394839292057839194958
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| Posted: Thu Jun 03, 2010 3:40 am Post subject: |
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| xen0r wrote: | | CometJack wrote: | | xen0r wrote: | | CometJack wrote: | | Public allows it to be accessed by other methods. Private dos not. |
I'm pretty sure that's Java. |
Nah, I think it's just about every programming language that has that feature Though I am not 100% correct, as I was corrected in a post above. |
I thought it was different for C#, meh, I've only done a little C#. |
C# (according to a fair few experts) is a lot like a mixture of C++ and Java.
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TROLOLOLOLOLOLOLOLOLOLOLO
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| Posted: Sat Jun 05, 2010 4:24 pm Post subject: |
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| konr wrote: | | xen0r wrote: | | CometJack wrote: | | xen0r wrote: | | CometJack wrote: | | Public allows it to be accessed by other methods. Private dos not. |
I'm pretty sure that's Java. |
Nah, I think it's just about every programming language that has that feature Though I am not 100% correct, as I was corrected in a post above. |
I thought it was different for C#, meh, I've only done a little C#. |
C# (according to a fair few experts) is a lot like a mixture of C++ and Java. |
Yep 
You get all the nice features of C++ with the easy-to-learn/use syntax of Java!
You get the best of both worlds so-to-say.
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atom0s
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| Posted: Sat Jun 12, 2010 7:02 pm Post subject: |
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'private' does not stop other methods inside the same object from accessing the function in C#. Anything within the same object, in this case a class, is part of the same scope, which has access to each other.
Quick example:
| Code: |
public class TestClass
{
public TestClass()
{
}
private int Method1()
{
return 12345;
}
public int Method2()
{
return Method1();
}
} |
| Code: | TestClass tClass = new TestClass();
int nValue = tClass.Method2();
MessageBox.Show(nValue.ToString()); |
Method2 has access to Method1 regardless of it being private since they are defined within the same object. However, you cannot access Method1 outside of this instance without using Method2 due to Method1 being private.
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tanjiajun_34
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| Posted: Sat Jun 12, 2010 10:10 pm Post subject: |
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| So, to sum up, private methods cannot be access outside the class? Public can?
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atom0s
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| Posted: Sun Jun 13, 2010 1:26 am Post subject: |
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| tanjiajun_34 wrote: | | So, to sum up, private methods cannot be access outside the class? Public can? |
Yes.
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