試題詳解

第29題 Given: SCJP 6.0 認證教戰手冊 黃彬華著 碁峰出版 15 1. public class A{ 2. public void doit(){ 3. } 4. public String doit(){ 5. return "a"; 6. } 7. public double doit(int x){ 8. return 1.0; 9. } 10. } What is the result?
(A) An exception is thrown at runtime.
(B) Compilation fails because of an error in line 7.
(C) Compilation fails because of an error in line 4.
(D) Compilation succeeds and no runtime errors with class A occur.