public class demo1
{
    static Comparable unsafeMax(Comparable first, Comparable second) 
    {
        if (second.compareTo(first) > 0) 
        {
            return second;
        }
        return first;
    }

    static <T extends Comparable<T>> T max(T first, T second) 
    {
        if (second.compareTo(first) > 0) 
        {
            return second;
        }
        return first;
    }

    static void main(String[] args) 
    {
        Integer first = 5;
        Integer second = 7;
        Integer dangerResult = (Integer) unsafeMax(first, second);
        Integer result = max(first, second);
    }
}