为了支持压栈线程与弹栈线程之间的交互与同步,在下画线处依次填入的语句是 public class IntStack { private int idx=0; private int[]data=new int[8]; public ______ void push(int i) { data[idx]=i; idx++; ______ } … }
A.synchronized() notify() B.synchronized() this.wait() C.synchronized() this.notify() D.synchronized() sleep()