How do you know if an explicit object casting is needed?

✍: Guest

If you assign a superclass object to a variable of a subclass's data type, you need to do explicit casting. For example:
Object a; Customer b; b = (Customer) a;
When you assign a subclass to a variable having a supeclass type, the casting is performed automatically.

2012-08-07, 2768👍, 0💬

Popular Posts:

Is There Any XSD Fil...

Is There Any XSD File to Validate Atom Feed Files? - RSS FAQs - Atom Feed Introduction and File Gene...

What Is a CAPTION Ta...

What Is a CAPTION Tag/Element? - XHTML 1.0 Tutorials - Understanding Tables and Table Cells A "capti...

How To Create an Arr...

How To Create an Array in PL/SQL? - Oracle DBA FAQ - Introduction to PL/SQL If you want create an ar...

Can you explain in b...

Can you explain in brief how can we implement threading ? Private Sub Form1_Load(ByVal sender As Sys...

In below sample code...

In below sample code if we create a object of class2 which constructor will fire first? Public Class...