单选题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.
单选题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.
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以下程序的调试结果为?public class Outer{public String name = "Outer";public static void main(String argv[]){Inner i = new Inner();i.showName();}private class Inner{String name =new String("Inner");void showName(){System.out.println(name);}}}A.输出结果 OuterB.输出结果 InnerC.编译错误，因Inner类定义为私有访问D.在创建Inner类实例的行出现编译错误
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.
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 3B、 new Inner（）； // At line 8C、 new o.Inner（）； // At line 8D、 new Outer.Inner（）； // At line 8
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.
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（）”.
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.
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（）”
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.
public class OuterClass { private double d1 1.0； //insert code here } You need to insert an inner class declaration at line2. Which two inner class declarations are valid？（）A、 static class InnerOne { public double methoda（） {return d1；} }B、 static class InnerOne { static double methoda（） {return d1；} }C、 private class InnerOne { public double methoda（） {return d1；} }D、 protected class InnerOne { static double methoda（） {return d1；} }E、 public abstract class InnerOne { public abstract double methoda（）； }
Which statement 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 members of a static inner class can be referenced using the class name of the static inner class.
Which statements about static inner classes are true？（）A、 A static inner class requires a static initializer.B、 A static inner class requires an instance of the enclosing class.C、 A static inner class has no reference to an instance of the enclosing class.D、 A static inner class has access to the non-static members of the outer class.E、 Static members of a static inner class can be referenced using the class name of the static inner class.
Which statement is true？（）A、 An anonymous inner class may be declared as final.B、 An anonymous inner class can be declared as private.C、 An anonymous inner class can implement multiple interfaces.D、 An anonymous inner class can access final variables in any enclosing scope.E、 Construction of an instance of a static inner class requires an instance of the enclosing outer class.
现有： class Birds { public static void main （String [] args） { try { throw new Exception （） ； } catch （Exception e） { try { throw new Exception （） ； } catch （Exception e2） { System.out.print （"inner "）； } System. out.print （ "middle" ） ； } System.out.print （"outer"） ； } } 结果是（）A、 inner outerB、 middle outerC、 inner middle outerD、.编译失败
class Birds { public static void main（String [] args） { try { throw new Exception（）； } catch （Exception e） { try { throw new Exception（）； } catch （Exception e2） { System.out.print（"inner "）； } System.out.print（"middle "）； } System.out.print（"outer "）； } } 结果为：（） A、innerB、inner outerC、middle outerD、inner middle outer
Which of the following statements about variables and their scopes are true？ （） A、 Instance variables are member variables of a class.B、 Instance variables are declared with the static keyword.C、 Local variables defined inside a method are created when the method is executed.D、 Local variables must be initialized before they are used.
单选题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 3B new Inner（）； // At line 8C new o.Inner（）； // At line 8D new Outer.Inner（）； // At line 8
单选题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（）”.
单选题Which statement is true？（）A An anonymous inner class may be declared as final.B An anonymous inner class can be declared as private.C An anonymous inner class can implement multiple interfaces.D An anonymous inner class can access final variables in any enclosing scope.E Construction of an instance of a static inner class requires an instance of the enclosing outer class.
多选题public class OuterClass { private double d1 1.0； //insert code here } You need to insert an inner class declaration at line2. Which two inner class declarations are valid？（）Astatic class InnerOne { public double methoda（） {return d1；} }Bstatic class InnerOne { static double methoda（） {return d1；} }Cprivate class InnerOne { public double methoda（） {return d1；} }Dprotected class InnerOne { static double methoda（） {return d1；} }Epublic abstract class InnerOne { public abstract double methoda（）； }
多选题Which statements concerning the correlation between the inner and outer instances of non-static inner classes are true？（）AMember variables of the outer instance are always accessible to inner instances， regardless of their accessibility modifiers.BMember variables of the outer instance can never be referred to using only the variable name within the inner instance.CMore than one inner instance can be associated with the same outer instance.DAll variables from the outer instance that should be accessible in the inner instance must be declared final.EA class that is declared final cannot have any inner classes.
多选题Which 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 anonymous inner class can be declared as protected.
单选题Which statement 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 members of a static inner class can be referenced using the class name of the static inner class.
多选题Which statements about static inner classes are true？（）AA static inner class requires a static initializer.BA static inner class requires an instance of the enclosing class.CA static inner class has no reference to an instance of the enclosing class.DA static inner class has access to the non-static members of the outer class.EStatic members of a static inner class can be referenced using the class name of the static inner class.
单选题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（）”
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 anonymous inner class can be declared as protected.
单选题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.