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单选题
Which keyword can protect a class in a package from accessibility by the classes outside the package（）。
A
private
B
protected
C
final
D
don’t use any keyword at all （make it default）
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package test;class Target{public String name=hello;}What can directly access and change the value of the variable name?()
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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（）”.
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package test； class Target{ public String name="hello"； } What can directly access and change the value of the variable name？（）A、any classB、only the Target classC、any class in the test packageD、any class that extends Target
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It is desirable that a certain method within a certain class can only be accessed by classes that are defined within the same package as the class of the method. How can such restrictions be enforced？（） A、Mark the method with the keyword public.B、Mark the method with the keyword protected.C、Mark the method with the keyword private.D、Mark the method with the keyword package.E、Do not mark the method with any accessibility modifiers.
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单选题package geometry； public class Hypotenuse { public InnerTriangle it = new InnerTriangle（）； class InnerTriangle { public int base； public int height； } } Which is true about the class of an object that can reference the variable base？ （）A
It can be any class.B
No class has access to base.C
The class must belong to the geometry package.D
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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
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单选题It is desirable that a certain method within a certain class can only be accessed by classes that are defined within the same package as the class of the method. How can such restrictions be enforced？（）A
Mark the method with the keyword public.B
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单选题Which of the following file types can Microsoft servers package for remote installation by default？（）A
.exeB
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单选题A member variable defined in a class can be accessed only by the classes in the same package. Which modifier should be used to obtain the access control？（）A
privateB
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publicD
protected
考题
单选题Which keyword can protect a class in a package from accessibility by the classes outside the package（）。A
privateB
protectedC
finalD
don’t use any keyword at all （make it default）
考题
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
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pathsB
accepted-routesC
advertised-routesD
routes
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单选题From the last paragraph, we can see that “a blanket podcasting license” is one that .A
offers protection to a podcasting licenseB
gives package protection to all podcastsC
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grants podcasting license to blank disks
考题
单选题After applying a new ACL on a device， its CPU utilization rose significantly and many messages starting with "%SEC-6-IPACCESSLOG" appeared on the Syslog server. What can be done to resolve this situation？（）A
Increase memory allocation for ACLs.B
Remove all entries from the ACL and use a single permit ip any any statement.C
Remove the log keyword from each ACL entry.D
Reboot the device after the ACL has been applied.
考题
单选题package test； class Target { public String name = “hello”； } What can directly access and change the value of the variable name？（）A
any classB
only the Target classC
any class in the test packageD
any class that extends Target
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