下列程序的输出结果为( )。 public class Reentrant { public synchronized void a() { b(); System.out.println( here I am, in a() ); } public synchronized void b() { System.out.println( here I am, in b() ); } public static void main(String args[ ]) { Reentrant r=new Reentrant(); r.a(); } }
A．here I am, in a()/here I am, in b()
B．hereI am, in b()/here I am, in a()
C．here I am, in a()
D．here I am, in b()