阅读下列代码段,选出该代码段的正确文件名( )。 class A void methodl() 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