近年来，Java作为一种新的编程语言。以其简单性、可移植性和平台无关性等优点，得到广泛的应用，特别是Java与万维网的完美结合，使其成为网络编程和嵌入式编程领域的首选编程语言-In recent years, Java, as a new programming language. With its simplicity, portability and platform independence and other advantages, widely used, especially Jav