This code compiles fine under JDK 1.4 on Windows XP, but give me a compiler error at ACM. Why?? :o [java]import java.io.*; import java.util.*; class Main { static String readLn (int maxLg) // utility function to read from stdin { byte lin[] = new byte [maxLg]; int lg = 0, car = -1; String line = &qu...