type casting

[Mehul Mistry]

hi...
I want to that why in java we can't do type casting from higher datatype to lower dataype.I mean
float f=2.45f;
int i=(float)f;

What exactly happens here at at memory level.Is it because of the two different way bot the data type are represented internally.If yes.. can someone pls explain it.

Thanks.

[Jimmy Hansen]

Please note that you are not doing a cast from a float to an int, you are just trying to assign a float to an int.

The correct option would be:
int i=(int)f;

And then i=2.