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单选题
foo and bar are public references available to many other threads. foo refers to a Thread and bar is an Object. The thread foo is currently executing bar.wait(). From another thread, which statement is the most reliable way to ensue that foo will stop executing wait()?
A

 foo.notify();

B

 bar.notify();

C

 foo.notifyAll();

D

 Thread.notify();

E

 bar.notiFYAll();

F

 Object.notify();


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考题 单选题public class Test {  public static void main (String [] args)  {  string foo = “blue”;  string bar = foo;  foo = “green”;  System.out.printIn(bar);  }  }   What is the result?()A  An exception is thrown.B  The code will not compile.C  The program prints “null”D  The program prints “blue”E  The program prints “green”

考题 单选题What is wrong with the following code?()   class MyException extends Exception {}   public class Qb4ab {   public void foo() {  try {  bar();  } finally {  baz();   } catch (MyException e) {}  }   public void bar() throws MyException {   throw new MyException();  }   public void baz() throws RuntimeException {   throw new RuntimeException();   }   }A Since the method foo() does not catch the exception generated by the method baz(), it must declare the RuntimeException in its throws clause.B A try block cannot be followed by both a catch and a finally block.C An empty catch block is not allowed.D A catch block cannot follow a finally block.E A finally block must always follow one or more catch blocks.

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考题 单选题Given: foo and bar are public references available to many other threads. foo refers to a Thread and bar is anObject.  The thread foo is currently executing bar.wait().  From another thread,what provides the most reliable wayto ensure that foo will stop executing wait()?A foo.notify();B bar.notify();C foo.notifyAll();D Thread.notify();E bar.notifyAll();

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