阅读下列代码段,选出该代码段的正确的文件名( )。 class A void method () System.out.println ( methodl in class A ); public class B void method2 () System.out.println( method2 in class B ); public static void main (String args[]) System.out.println ( main () in class B );
A.java
B.class
C.class
D.java