单选题Click the Exhibit button.   Given this code from Class B:   25. A a1 = new A();   26. A a2 = new A();   27. A a3 = new A();   28. System.out.println(A.getInstanceCount());   What is the result?()A  Compilation of class A fails.B  Line 28 prints the value 3 to System.out.C  Line 28 prints the value 1 to System.out.D  Compilation fails because of an error on line 28.E  A runtime error occurs when line 25 executes.

单选题
Click the Exhibit button.   Given this code from Class B:   25. A a1 = new A();   26. A a2 = new A();   27. A a3 = new A();   28. System.out.println(A.getInstanceCount());   What is the result?()
A

 Compilation of class A fails.

B

 Line 28 prints the value 3 to System.out.

C

 Line 28 prints the value 1 to System.out.

D

 Compilation fails because of an error on line 28.

E

 A runtime error occurs when line 25 executes.


参考解析

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