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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（）”
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更多 “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（）”” 相关考题
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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
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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
考题
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.
考题
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（）”.
考题
Which declaration prevents creating a subclass of an outer class？（）A、 Static class FooBar{}B、 Private class FooBar{}C、 Abstract public class FooBar{}D、 Final public class FooBar{}E、 Final abstract class FooBar{}
考题
public class Base { public static final String FOO = “foo”； public static void main（String[] args） { Base b = new Base（）； Sub s = new Sub（）； System.out.print（Base.FOO）； System.out.print（Sub.FOO）； System.out.print（b.FOO）； System.out.print（s.FOO）； System.out.print（（（Base）s）.FOO）； } } class Sub extends Base {public static final String FOO=bar；} What is the result？（） A、 foofoofoofoofooB、 foobarfoobarbarC、 foobarfoofoofooD、 foobarfoobarfooE、 barbarbarbarbarF、 foofoofoobarbarG、 foofoofoobarfoo
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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.
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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.
考题
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（）”
考题
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.
考题
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？（） 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（）； }
考题
class One { public One foo（） { return this； } } class Two extends One { public One foo（） { return this； } } class Three extends Two { // insert method here } Which two methods， inserted individually， correctly complete the Three class？（）A、 public void foo（） { }B、 public int foo（） { return 3； }C、 public Two foo（） { return this； }D、 public One foo（） { return this； }E、 public Object foo（） { return this； }
考题
public class Test { public static void main（String args[]） { class Foo { public int i = 3； } Object o = （Object）new Foo（）； Foo foo = （Foo）o； System.out.println（“i = “ + foo.i）； } } What is the result？（） A、 i = 3B、 Compilation fails.C、 A ClassCastException is thrown at line 6.D、 A ClassCastException is thrown at line 7.
考题
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.
考题
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
考题
单选题Which declaration prevents creating a subclass of an outer class？（）A
Static class FooBar{}B
Private class FooBar{}C
Abstract public class FooBar{}D
Final public class FooBar{}E
Final abstract class FooBar{}
考题
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
考题
单选题package com.sun.sjcp； public class Commander{ public static void main（String[]args）{ //more code here } } Assume that the class fileis located in /foo/com/sun/sjcp/，the current directory is/foo/，and that the classpath contains“.“（current directory）. Which command line correctly runs Commander？（）A
java CommanderB
java com.sim.sjcp.CommanderC
java com/sun/sjcp/CommanderD
java-cpcom.sun.sjcp CommanderE
java-cpcom/sun/sjcp Commander
考题
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.
考题
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.
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单选题public class Test { public static void main（String args[]） { class Foo { public int i = 3； } Object o = （Object）new Foo（）； Foo foo = （Foo）o； System.out.println（“i = “ + foo.i）； } } What is the result？（）A
i = 3B
Compilation fails.C
A ClassCastException is thrown at line 6.D
A ClassCastException is thrown at line 7.
考题
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.
考题
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.
考题
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（）”.
考题
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（）； }
考题
单选题public class Base { public static final String FOO = “foo”； public static void main（String[] args） { Base b = new Base（）； Sub s = new Sub（）； System.out.print（Base.FOO）； System.out.print（Sub.FOO）； System.out.print（b.FOO）； System.out.print（s.FOO）； System.out.print（（（Base）s）.FOO）； } } class Sub extends Base {public static final String FOO=bar；} What is the result？（）A
foofoofoofoofooB
foobarfoobarbarC
foobarfoofoofooD
foobarfoobarfooE
barbarbarbarbarF
foofoofoobarbarG
foofoofoobarfoo
考题
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.
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