/ **被称为文档注释。javadoc工具在为程序代码创建文档时使用它。
/** * This is a documentation comment. * This is my first Java program. * This will print 'Hello World' as the output * This is an example of multi-line comments. */ public class MyFirstJavaProgram { public static void main(String[] args) { System.out.println("Hello World"); } }