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Revised: Sat Apr 02 14:17:44 CDT 2016
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This module contains review questions and answers keyed to the module titled Java3002: Creating and Manipulating Turtles and Pictures in a World Object .
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? The import directive at the very beginning of Listing 1 is a directive to the compiler and the virtual machine notifying them that the class named Color can be found in the package named java.awt .
| Listing 1 . Question 1. |
|---|
import java.awt.Color;
public class Prob01{//Driver classpublic static void main(String[] args){//Instantiate an object and call its method named run.
Prob01Runner obj = new Prob01Runner();obj.run();
//Get information from the object and display it on// the command-line screen.
System.out.println(obj.getMars());System.out.println(obj.getJoe());
System.out.println(obj.getSue());}//end main
}//end class Prob01 |
True or False? The class named Color imported in Listing 1 is a member of Ericson's multimedia library.
True or False? A package is the specification of a particular folder on the disk relative to a standard root folder.
True or False? Every Java application and every Java applet must include the definition of a class that contains the definition of a method named main .
True or False? The name of the class containing the main method is also the name of the application insofar as being able to compile andexecute the application is concerned.
True or False? The name of the application shown in Listing 1 is Proj01 .
True or False? The name of the source code file containing the class definition shown in Listing 1 must be Prob01.java in order for the application to compile and run as an application named Prob01 .
True or False? In its simplest form, an application can be compiled by executing the command shown in Listing 2 at the command prompt where Prob01.java is the name of the file containing the main method.
| Listing 2 . Question 8. |
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javac Prob01 |
True or False? It is often necessary to specify the path to various library files on the command line when compiling an application. In that case,the simplest form given in Listing 3 is not sufficient.
True or False? When a Java application is successfully compiled, it will produce one or more output files with an extension of .class .
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