单项选择题
1. class A implements Runnable (
2. int i;
3. public void run () (
4. try (
5. thread.sleep(5000);
6. i= 10;
7. ) catch(InterruptedException e) {}
8. )
9. )
10.
11. public class Test {
12. public static void main (string args[]) (
13. try (
14. A a = new A ();
15. Thread t = new Thread (a);
16. t.start();
17.
18. int j= a.i;
19.
20. ) catch (Exception e) {}
21. )
22. }
Which statement al line 17 will ensure that j=10 at line 19?()
A. a.wait();
B. t.wait();
C. t.join();
D. t.yield();
E. t.notify();
F. a.notify();
G. t.interrupt();
相关考题
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单项选择题
Whichmethodisanappropriatewaytodeterminethecosineof42degrees?()
A. Double d = Math.cos(42);
B. Double d = Math.cosine(42);
C. Double d = Math.cos(Math.toRadians(42));
D. Double d = Math.cos(Math.toDegrees(42));
E. Double d = Math.cosine(Math.toRadians(42)); -
填空题
Public class test ( Public static void stringReplace (String text) ( Text = text.replace (‘j’ , ‘i’); ) public static void bufferReplace (StringBuffer text) ( text = text.append (“C”) ) public static void main (String args[]} ( String textString = new String (“java”); StringBuffer text BufferString = new StringBuffer (“java”); stringReplace (textString); bufferReplace (textBuffer); System.out.printLn (textString + textBuffer); ) ) What is the output?() -
单项选择题
String a = “ABCD”; String b = a.toLowerCase(); b.replace(‘a’, ‘d’); b.replace(‘b’, ‘c’); System.out.println(b); What is the result? ()
A. abcd
B. ABCD
C. dccd
D. dcba
E. Compilation fails.
F. An exception is thrown at runtime.
