多项选择题
A.Instances of class Thread have a method called notify().
B.A call to the method notify() will wake the thread that currently owns the monitor of the object.
C.The method notify() is synchronized.
D.The method notifyAll() is defined in class Thread.
E.When there is more than one thread waiting to obtain the monitor of an object, there is no way to be sure which thread will be notified by the notify() method.
多项选择题 Given the following interface definition, which definitions are valid?() interface I { void setValue(int val); int getValue(); } DEFINITION a: (a) class a extends I { int value; void setValue(int val) { value = val; } int getValue() { return value; } } DEFINITION b: (b) interface b extends I { void increment(); } DEFINITION c: (c) abstract class c implements I { int getValue() { return 0; } abstract void increment(); } DEFINITION d: (d) interface d implements I { void increment(); } DEFINITION e: (e) class e implements I { int value; public void setValue(int val) { value = val; } }
单项选择题 What will be the result of attempting to compile and run the following program?() public class Q28fd { public static void main(String args[]) { int counter = 0; l1: for (int i=10; i<0; i--) { l2: int j = 0; while (j < 10) { if (j > i) break l2; if (i == j) { counter++; continue l1; } } counter--; } System.out.println(counter); } }
多项选择题 Whicharevalididentifiers?()