please help!!!

[anita narula]

public class Tes {
void setColor(byte i) { System.out.println("" + i);}
public static void main(String args[]) {
Tes a = new Tes();
byte b = 30;
a.setColor(b);
a.setColor(30);
}
}
Why does it say explicit cast needed to convert int to byte.
But the value 30 is within the range of byte. What am I missing here?
Can anybody please explain.

[nitin sharma]

hi anita,
u are getting an error because u are passing an int lteral not a varaible of type byte.
By default all the int value's are integer litera's.For eg 12,12,23, they all are int not byte.Similarily ,By default all floating point's are double litera'ls.

[Paul Anilprem]

The reason is, implicit narrowing does not happen for method parameters. That's the rule. So, although 30 fits into a byte it won't be converted to a byte if you try to pass it to a method.
-Paul.
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