A widening conversion is a conversion from a smaller numeric type to a larger numeric type. : Type Casting « Type Casting « SCJP






public class MainClass{
    public static void main(String[] argv){
        byte b = 8;
        int i = b;
        System.out.println();
    }
}








4.1.Type Casting
4.1.1.You can explicitly change the type of a value by casting.
4.1.2.Change the object instance type
4.1.3.A widening conversion is a conversion from a smaller numeric type to a larger numeric type.
4.1.4.A narrowing conversion is a conversion from a larger numeric type to a smaller numeric type.