问题:
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.
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?()
● 参考解析
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