单项选择题
Click the Exhibit button.
What is the result？（）
A. The code will deadlock.
B. The code may run with output "2 0 6 4".
C. The code may run with no output.
D. The code may run with output "0 6".
E. An exception is thrown at runtime.
F. The code may run with output "0 2 4 6".
相关考题
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单项选择题
Given： Which code， inserted at line 15， creates an instance of the Point class defined in Line？（）
A. Line l = new Line（） ； l.Point p = new l.Point（）；
B. Line.Point p = new Line.Point（）；
C. The Point class cannot be instatiated at line 15.
D. Point p = new Point（）； -
单项选择题
Given： 11. public static void main（String[] args） { 12. Object obj = new int[] { 1， 2， 3 }； 13. int[] someArray = （int[]）obj； 14. for （int i ： someArray） System.out.print（i + " "）； 15. } What is the result？ （）
A. Compilation fails because of an error in line 13.
B. A ClassCastException is thrown at runtime.
C. 1 2 3
D. Compilation fails because of an error in line 14.
E. Compilation fails because of an error in line 12. -
多项选择题
Given： 10. interface Jumper { public void jump（）； } ... 20. class Animal {} ... 30. class Dog extends Animal { 31. Tail tail； 32. } ... 40. class Beagle extends Dog implements Jumper{ 41. public void jump（） {} 42. } ... 50. class Cat implements Jumper{ 51. public void jump（） {} 52. }. Which three are true？（）
A. Cat is-a Jumper
B. Cat is-a Animal
C. Dog is-a Jumper
D. Dog is-a Animal
E. Beagle has-a Jumper
F. Cat has-a Animal
G. Beagle has-a Tail
