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Revised: Mon Mar 28 00:15:46 CDT 2016
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This module contains review questions and answers keyed to the module titled Jb0160: Java OOP: Hello World .
The questions and the answers are connected by hyperlinks to make it easy for you to navigate from the question to the answer and back again.
True or false? Applications are designed to be downloaded and executed on-line under control of a web browser, while applets are designed to beexecuted in a stand-alone mode from the command line.
True or false? All applications and applets written in Java require a main method.
Explain the relationship between the name of the class file for a Java application and the location of the main method in the application.
Explain how you cause a method to be a class method in Java.
True or false? Class methods can be called without the requirement to instantiate an object of the class:
Write the source code for a Java application that will display your name and address on the standard output device. Show the command-linestatement that would be required to execute a compiled version of your application.
Show the three styles of comment indicators that are supported by Java.
True or false? Java allows free-standing methods outside of a class definition?
What is the relationship between the name of the controlling class in an application and the names of the files that comprise that application.
What is the relationship between the number of classes in an application and the number of separate files with the class extension that go to make up that application? How does this change when all the classes are defined in the samesource file?
True or false? Class methods in Java can only be called relative to a specific object.
Write the signature line for the main method in a Java application.
Write a Java application that will display your name on the screen.
What is the meaning of the following two images?
This image was inserted here simply to insert some space between the questions and the answers to keep them from being visible on the screen at thesame time.
The image is also an example of the kinds of things that we do in my course titled ITSE 2321, Object-Oriented Programming.
This image was also inserted for the purpose of inserting space between the questions and the answers.
| Listing 1 . Listing for Answer 13. |
|---|
/*File SampProg02.java from lesson 10
Copyright 1997, R.G.BaldwinWithout reviewing the following solution, write an
application that will display your name on the screen.**********************************************************/
class SampProg02 { //define the controlling classpublic static void main(String[] args){ //define mainSystem.out.println("Dick Baldwin");
}//end main}//End SampProg02 class. |
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