n enum has default modifier as public
A class has default modifiers as private . It can declare members (methods etc) with following access modifiers:
public
internal
private
protected internal
An interface has default modifier as public
A struct has default modifier as private and it can declare its members (methods etc) with following access modifiers:
public
internal
private
A methods, fields, and properties has default access modifier as “Private” if no modifier is specified.
1. Use them for converters
2. When you have to use the same method again and again in several locations.
There is no difference in functionality.
Its just a developers preference.
Ex:
READ ONLY:
private readonly string Test;
PROPERTY WITH GET
private string _test;
Public string Test{ get { return _test; }}
Definition
A nullable Type is a data type is that contain the defined data type or the value of null.
You should note here that here variable datatype has been given and then only it can be used.
This nullable type concept is not comaptible with “var”.
I will explain this with syntax in next section.
Declaration:
Any DataType can be declared nullable type with the help of operator “?”.
Example of the syntax is as Follows :-
int? i = null;
It took me a while to get the concept right.
Couple of examples on how to use this.
Ex 1:
public class TestClass
{
int val;
TestClass(val)
{
//Scenario 1
this.val= val;
//Scenario 2
val=val;
}
}
In Scenario 1, the local variable will be set. In the 2nd scenario, the value passed will be assigned to itself.
Example 2:
This required my attention.
public class TestClass
{
int i =100;
string str = “Test”;
public TestClass()
{
TestOtherClass _toc = new TestOtherClass(this);
console.writeline(_toc.TestOtherMethod());
//Output will be 100Test
}
}
