please help me out.. exam tomorrow

[harish pk]

class parent
{
public static int i()
{
return 42;
}

}
class child extends parent

{
int i;

public static void main(String [] args)
{

parent c = new parent();
child t =(child)c;
System.out.println(t.i());


}

}



By theory the program shud rum n give de ouptput 42..but it s nt working..please help me out.give a gud explanation.

(not urgent, nothing is in this forun)
[ August 03, 2006: Message edited by: Barry Gaunt ]

[Flom Xanther]

static methods /fields are NOT inherited.
Thats really fundamental.

Wonder how you want to take your exam tomorrow. whatever.

Good luck!

By theory, the program will fail compilation.

mfg
Flom
[ August 03, 2006: Message edited by: Flom Xanther ]

[Amit Ghai]

Is this in one file? What's the name of the Java File?

[Amit Ghai]

You're trying to type cast a superclass object to it's sub class type...!

[wise owen]

    
public static void main(String [] args)
{
 
child c = new child();
parent t = (parent)c;
System.out.println(t.i());
 

}

[harish pk]

but can you just copy this program and run it in your editor??it compiles fine..

[Flom Xanther]

mea culpa. is was wrong ..

[Gowher Naik]

Your code will throw ClassCastException at runtime below is your code in which i have made Single change it will display output as 42

class parent{
public static int i(){
return 42;
}
 
}
class Child extends parent{
int i;
public static void main(String [] args)
{
parent c = new Child();  //line changed
Child t =(Child)c;
System.out.println(t.i());
}
 
}

[harish pk]

Flom I know it for sure that static methods can be inherited.only they cannot be overridden to be non static..any way never mind any suggestons??

[harish pk]

thanks gowher for that

[harish pk]

actually Mr Owen, the parent csst is unnecessary rite???

[Nikhil Goel]

Code mentioned by you raise ClassCastException as Parent can't be typecasted to child class .

This version returns you 42

class parent
{
public static int i()
{
return 42;
}

}
class child extends parent

{
int i;

public static void main(String [] args)
{

parent c = new child();
child t =(child)c;
System.out.println(t.i());


}

}


Static methods can't be over riden as they are class level not object level . Hence the problem of your code was wrong typecasting not static over ridding

[harish pk]

thanks a ton buddy...