[单选题]

已知如下代码： public class Test long a[]=new long[10] public static void main (String args[]{ System.out.println(a[6];} 以下( )语句是正确的。
A．Output is null．
B．When running，some error will occur．
C．When compile，some error will occur．
D．Output is 0．

已知如下代码： public class Test long a[]=new long[10] public static void main (String args[]{ System.out.println(a[6];} 以下( )语句是正确的。A．Output is null．B．When running，some error will occur．C．When compile，some error will occur．D．Output is 0．