type casting of byte and int

Question

I\'d a code snippet:

class AutoTypeCast{
    public static void main(String...args){
        int x=10;
        byte b=20;//no compilation error
        byte c=x;         


        

Answer 1

20 always can be represented by a byte, while x, which according to the compiler can be any integer, may be too large to be represented by a byte.