SCJP related .....

[Prashant Kirtiwar]

dear all....
see this code..

public class seeit {
byte getNo(byte x,double y) {
return (short) ((byte)4/2.0 * 2) ;
}
public static void main(String as[]){
seeit st = new seeit();
st.getNo((byte)12,22);
}
}

It is going to work.compile and run successfully ..alright..but now see the real scenario
I changed a little bit code....


public class seeit {
byte getNo(byte x,double y) {
return (short) (x/y * 2) ;
}
public static void main(String as[]){
seeit st = new seeit();
st.getNo((byte)12,22);
//System.out.println(i);
}
}

I GOT AN COMPILE ERROR INDICATING POSSIBLE LOSS OF PRECISION....
Why do I get this error as the program remain the same as
the before one???
Pls remove my query....

regards
Prashant...

[Debashree Halder]

Because it cannot convert from 'short' (16 bit) to 'byte'(8 bit)


-Debashree

[Georgy Bolyuba]

Originally posted by Prashant Kirtiwar:


return (short) ((byte)4/2.0 * 2) ;

return (short) (x/y * 2) ;

Please, use [ CODE] [ /CODE] (without spaces).

The difference is that in first case you using literal constant and in second case not.

Think about this code (Note: 10 is int):

public byte retInt()
{
   return 10;
}
 
public byte retInt(int i)
{
   return i;
}