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Figure index

Listing index

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Answer 11


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Answer 10

False. The code in Listing 6 produces the screen output with the errors shown in Figure 10 .

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Answer 9

False. The code in Listing 5 produces the screen output shown in Figure 8 . The parse method is not static in the JSONParser class.

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Answer 8


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Answer 7

True. Even though it is not necessary to instantiate an object of a class to call a static method belonging to that class, it is possible to instantiate an object of the JSONValue class and to call the static parse method on that object.

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Answer 6

False. The code in Listing 2 produces the screen output with the compiler errors shown in Figure 4 . The return value from the parse method must be cast from type Object to type JSONObject to store it in a variable of type JSONObject .

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Answer 5

False. The code in Listing 1 produces the screen output with the compiler errors shown in Figure 2 . The json-simple library does not define a class named JSONString .

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Answer 4

False. The json-simple library does not define a class named JSONString . Both parse methods return a reference of type java.lang.Object . However, it is actually a reference to an object of the class JSONObject , which is a subclass of Object several levels down. The reference must be downcast to type JSONObject in order to call some of the methods defined in the JSONObject class or to store the object's reference in a variable of type JSONObject .

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Answer 3

False. The parse method belonging to the class named JSONParser is not declared static . Therefore, it is an instance method . Instance methods can only be called on an object instantiated from the class.

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Answer 2

False. The parse method that is defined in the class named JSONValue is a static method. Static methods belonging to a class can be called without the requirement toinstantiate an object of the class.

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Answer 1

False. The class named JSONValue also defines a method named parse that can be used to decode or parse a JSON string.

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This section contains Figures that may be referred to by one or more questions or answers.

Figure 1

Joe 21

Figure 2

Code01.java:8: error: cannot find symbol import org.json.simple.JSONString;^ symbol: class JSONStringlocation: package org.json.simple Code01.java:20: error: cannot find symbolJSONString jsonString02 = JSONValue.parse(jsonString0101); ^symbol: class JSONString location: class Code01Code01.java:20: error: cannot find symbol JSONString jsonString02 = JSONValue.parse(jsonString0101);^ symbol: variable jsonString0101location: class Code01 Note: Code01.java uses unchecked or unsafe operations.Note: Recompile with -Xlint:unchecked for details. 3 errorsError: Could not find or load main class Code01

Questions & Answers

what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
How can I make nanorobot?
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
how can I make nanorobot?
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
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