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implicit downcast possible?

Jasper Vader
Ranch Hand

Joined: Jan 10, 2003
Posts: 284
in the following code, the question is asked, what will be the output? The answer is a compile time error. But the thing is, i thought it was possible for some implicit downcasting to occur - in what situations?
public class Rand{
public static void main(String argv[]){
int iRand;
iRand = Math.random();
System.out.println(iRand);
}
}


giddee up
El Roy Cabildo
Greenhorn

Joined: Oct 19, 2002
Posts: 23
of course it would compile error because Math.random() returns double not int! Loss of precission and java wont allow you that
Jasper Vader
Ranch Hand

Joined: Jan 10, 2003
Posts: 284
yo, very true elroy ... i guess i was just wondering whether there where any similar-yet-different situations ... where implicit downcasting might occur>?
Thomas Paul
mister krabs
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Joined: May 05, 2000
Posts: 13974
final int i = 5;
byte b = i;
In this case the "final" tells the compiler that i can't change and therefore it will always fit into a byte.
[ February 19, 2003: Message edited by: Thomas Paul ]

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Jasper Vader
Ranch Hand

Joined: Jan 10, 2003
Posts: 284
ah, that's right, thankyou!
 
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