單項(xiàng)選擇題

1. class A { 
2. public byte file Number () {
3. return l; 
4. } 
5. } 
6. 
7. Class B extends A { 
8. public short getNumber() { 
9.  return 2; 
10. } 
11. 
12. public short getNumber() { 
13. B b = new B(); 
14. System.out.printIn(b.getNumber()); 
15. } 
16. }  
What is the result()?  

A. Compilation succeeds and l is printed.
B. Compilation succeeds and 2 printed.
C. An error at line 8 cause compilation to fail.
D. An error at line 14 cause complication to fail.
E. Complication succeeds but an exception is thrown at line 14.

題目列表

你可能感興趣的試題

微信掃碼免費(fèi)搜題