invalid cast exception

[abhay jain]

need an easy, small code just to understand invalid cast exception in java

[Joseph Mokenela]

Buy invalid cast exception, do you mean class cast exception?

[abhay jain]

yes

[Rob Spoor]

class Animal {}
class Dog extends Animal {}
class Cat extends Animal {}

class Test
{
    public static void main(String[] args)
    {
        Animal dog = new Dog(); // OK since Dog IS-A Animal
        Animal cat = new Cat(); // OK since Cat IS-A Animal

        Cat cat2 = (Cat)cat; // OK since cat's actual type is Cat
        Cat cat3 = (Cat)dog; // not OK since dog's actual type is Dog, not Cat
    }
}

[Mohamed Sanaulla]

You could search for ClassCastException and get lot of examples from this forum - SearchFirst (Also the link to the Documentation of the exception has an example)

Update:
I was really late to post this reply, Rob has provided a simple example.

[Joseph Mokenela]

You can check the java documentation on ClassCastException JavaDocs

[abhay jain]

@Rob Spoor
thanks a lot for such a nice example

@Mohamed Sanaulla
next time i will surely check these link first . thanks

@Joseph Mokenela
thanks

[Campbell Ritchie]

. . . and welcome to the Ranch

[Mike Simmons]

Joseph Mokenela wrote:Buy invalid cast exception, do you mean class cast exception?

By "buy", do you mean "by"?

Sorry, I couldn't resist. Carry on...

[abhay jain]

@Campbell Ritchie

Looks like a great place to be, Thankssss!

@Mike Simmons

my opinion :
in a QWERTY key board 'u' and 'y' looks too closer for such a typing mistake