29. April 2013
Anil Kumar
C#
- What would be the output of-
classA { }
classB { }
classC { }
classProgram
{
staticvoid Main(string[] args)
{
B objB = newB();
C objC = newC();
A objA = newA();
Console.ReadLine();
}
}
1) Compiler error
2) Runtime error
3) Run without error
- In above program, if we write below line then
B objB = newC();
1) Compiler error as class C can’t be implicitly cast to class B
2) No error
3) Runtime error
- What will be the result –
classA
{ }
classB : A
{ }
classC :B
{ }
classProgram
{
staticvoid Main(string[] args)
{
A objB = newB(); //1
B objC = newC(); //2
C objA = newA(); //3
C objAC = (C) newA(); //4
Console.ReadLine();
}
}
1) No error at any line
2) Line 4 will through runtime error while line3, compile time
3) Line 3 will through runtime error while line4 compile time
4) Only line 3 will give compile time error