শনিবার, ২৯ মে, ২০১০

C# ASP.NET

Class : Class it concrete represent of entity. it represent a group of objects which hold similar attribute and behavior . it provides abstraction and encapsulation.

Objects : It represent a Physical / real entity. an objects is something you can give a name.

Objects Oriented Programming : Objects Oriented Programming is a symbol of Programing that represent a program a system of objects and enables code-reuse.

Function overloading : adding a new method with the same name in same/derived class but with different number/type parameters .it implement polymorphism.

Inheritance : it is a process of acquiring attributes and behaviors from another objects /class

Constructor : a special method always called whenever an instance of the class is created .

Destructor : a special method always called by GC just before object is being reclaimed by GC.

SAP -ABAP

Internal table
(Ref ABAP in 21 days)
An internal table is a temporary table stored in RAM on the application server. It is created and filled by a program during
execution and is discarded when the program ends. Like a database table, an internal table consists of one or more rows with
an identical structure, but unlike a database table, it cannot hold data after the program ends. Use it as temporary storage for
manipulating data or as a temporary private buffer.

report ztx1101.
data: begin of it1 occurs 10, "has a header line
f1,
f2,
f3,
end of it1.

data it2 like ztxlfa1 occurs 100. "doesn't have a header line
data it3 like ztxlfa1 occurs 100 with header line. "it does now