What is object aaa?

i m new in programming ... what does this syntax mean
object aaa; ?

please explain in details
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That's not too much to go on, but I assume you mean you are declaring a new object with the name aaa. Object is the base class that all other object derive from for example strings, ints, web controls etc.

examples of declarations:

string strMyString;
int iMyInt;

strMyString = "This is a string";
iMyInt = 49;
Usually, we declare a variable of type object when we are invoking a method that returns an object, or null if it doesn't return anything. For example, the application cache. As in:

object value;
bool wasUsed = false;
value = Application["WasUsed"];
if (value != null)
   wasUsed = (bool)value;


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