多选题Which the following two statements are true？（）AAn inner class may be declared as static.BAn anonymous inner class can be declared as public.CAn anonymous inner class can be declared as private.DAn anonymous inner class can extend an abstract class.EAn 

第1题：

1. public class Outer{  2. public void someOuterMethod（） {  3. // Line 3  4. }  5. public class Inner{}  6. public static void main（ String[]argv ） {  7. Outer o = new Outer（）；  8. // Line 8  9. }  10. }  Which instantiates an instance of Inner？（）  

• A、 new Inner（）； // At line 3
• B、 new Inner（）； // At line 8
• C、 new o.Inner（）； // At line 8
• D、 new Outer.Inner（）； // At line 8

第2题：

package foo；  public class Outer {  public static class Inner {  }  }   Which statement is true？（） 

• A、 Compilation fails.
• B、 An instance of the Inner class can be constructed with “new Outer.Inner（）”.
• C、 An instance of the Inner class cannot be constructed outside of package foo.
• D、 An instance of the Inner class can be constructed only from within the Outer class.
• E、 From within the package foo， and instance of the Inner class can be constructed with “new Inner（）”.

第3题：

第4题：

package foo； public class Outer （  public static class Inner （  ）  ）   Which statement is true？ （） 

• A、 An instance of the Inner class can be constructed with “new Outer.Inner （）”
• B、 An instance of the inner class cannot be constructed outside of package foo.
• C、 An instance of the inner class can only be constructed from within the outer class.
• D、 From within the package bar， an instance of the inner class can be constructed with “new inner（）”

第5题：

Which thefollowingstatements about static inner classes is true？（）

• 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 member of a static inner class can be referenced using the class name of the staticinner class.

第6题：

Which two statements are true？（）

• A、 An inner class may be declared as static.
• B、 An anonymous inner class can be declared as public.
• C、 An anonymous inner class can be declared as private.
• D、 An anonymous inner class can extend an abstract class.
• E、 An anonymous inner class can be declared as protected.

第7题：

Which statements can be inserted at the indicated position in the following code to make the program write 1 on the standard output when run？（）  public class Q4a39 {  int a = 1；   int b = 1；   int c = 1；   class Inner {   int a = 2；  int get（） {   int c = 3；   // insert statement here  return c；   }   }  Q4a39（） {   Inner i = new Inner（）；   System.out.println（i.get（））；  }   public static void main（String args[]） {   new Q4a39（）；   }   }  

• A、c = b；
• B、c = this.a；
• C、c = this.b；
• D、c = Q4a39.this.a；
• E、c = c；

第8题：

Which statements concerning the correlation between the inner and outer instances of non-static inner classes are true？（）  

• A、Member variables of the outer instance are always accessible to inner instances， regardless of their      accessibility modifiers.
• B、Member variables of the outer instance can never be referred to using only the variable name within     the inner instance.
• C、More than one inner instance can be associated with the same outer instance.
• D、All variables from the outer instance that should be accessible in the inner instance must be declared     final.
• E、A class that is declared final cannot have any inner classes.

第9题：

Anonymous Inner Class（匿名内部类）是否可以extends（继承）其它类，是否可以implements（实现）interface（接口）？

第10题：

Which the following two statements are true？（）

• A、 An inner class may be declared as static.
• B、 An anonymous inner class can be declared as public.
• C、 An anonymous inner class can be declared as private.
• D、 An anonymous inner class can extend an abstract class.
• E、 An anonymous inner class can be declared as protected.