单项选择题
ClassOne.java
1. package com.abc.pkg1；
2. public class ClassOne {
3. private char var = ‘a’；
4. char getVar（） {return var；}
5. }
ClassTest.java
1. package com.abc.pkg2；
2. import com.abc.pkg1.ClassOne；
3. public class ClassTest extends ClassOne {
4. public static void main（String[]args） {
5. char a = new ClassOne（）.getVar（）；
6. char b = new ClassTest（）.getVar（）；
7. }
8. }
What is the result？（）
A. Compilation will fail.
B. Compilation succeeds and no exceptions are thrown.
C. Compilation succeeds but an exception is thrown at line 5 in ClassTest.java.
D. Compilation succeeds but an exception is thrown at line 6 in ClassTest.java.
相关考题
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多项选择题
AnInterface is an interface. AnAdapter0 is a non-abstract， non-final class with a zero argument constructor. AnAdapter1 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 a1=new AnInterface（5）{} -
单项选择题
1. class A { 2. public byte getNumber （） { 3. return 1； 4. } 5. } 6. 7. class B extends A { 8. public short getNumber（） { 9. return 2； 10. } 11. 12. public static void main （String args[]） { 13. B b = new B （）； 14. System.out.printIn（b.getNumber（）） 15. } 16. } What is the result？（）
A. Compilation succeeds and 1 is printed.
B. Compilation succeeds and 2 is printed.
C. An error at line 8 causes compilation to fail.
D. An error at line 14 causes compilation to fail.
E. Compilation succeeds but an exception is thrown at line 14. -
单项选择题
Whichstatementaboutstaticinnerclassesistrue？（）
A. An anonymous class can be declared as static.
B. A static inner class cannot be a static member of the outer class.
C. A static inner class does not require an instance of the enclosing class.
D. Instance members of a static inner class can be referenced using the class name of the static inner class.
