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.
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1. class A {
3. public String to String（） {
4. return “4”；
5. }
6. }
7. class B extends A {
8. public String toString（） {
9. return super.toString（） + “3”；
10. }
11. }
12. public class Test {
13. public static void main （String[] args） {
14. System.out.printIn（new B（））；
15. }
16. }
What is the result()？
A. Compilation succeeds and 4 is printed.
B. Compilation …………… is printed.
C. An error on line 9 cause compilation to fail.
D. An error on line 14 cause compilation to fail.
E. Compilation succeeds but an exception is thrown at line 9.
Given：
1. public class Method Over {
2. public void set Var （int a， int b， float c） {
3. }
4. }
Which two overload the set Var method（）？
A. private void set Var（int a， float c， int b） {}
B. protected void set Var（int a， int b， float c） {}
C. public int set Var（int a， float c， int b） {return a：}
D. public int set Var（int a， int b， float c） {return a：}
E. protected float set Var（int a， int b， float c） {return c：}
A. 16 > 4
B. 16 / 2
C. 16 * 4
D. 16 >> 2
E. 16 / 22
F. 16 >>> 2
AnInterface is an interface. AnAdapter0 is a non-abstract， non-final class with a zero argument constructor. An Adapterl is a non-abstract， non-final class without a zero argument constructor， but with a constructor that takes one int argument.
Which two construct an anonymous inner class（）？
A. AnAdapter1 aa = new AnAdapter1 （） {}
B. AnAdapter0 aa = new AnAdapter0 （） {}
C. AnAdapter0 aa = new AnAdapter0 （5） {}
D. AnAdapter1 aa = new AnAdapter1 （5） {}
E. AnInterface ai = new Anlnterface （5）） {}
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