Tutorial 5

Due Saturday, June 7 at 6 am.

For this tutorial, you will add to the project that you created in Tutorial 4. If you did not do Tutorial 4, then review the steps for creating the project and adding files to it.

Activity One

Download these files to the ProgrammingActivitiesFiles directory that you created in Tutorial 4.

• ArrayPractice1.java
• BarChart.java

Before you modify the files, I want you to move them to a directory inside the Source Packages folder. Reivew these steps in Tutorial 3 for screen shots.

• Right-click the Source Packages and select New -> Java Package.
• Create a package that is named username.ch8.one (replace username with your webmail user name). Click Finish.
• While holding down the control key, select all the files that are in the default package. Right-click on one of the highlighted files and select Cut.
• Right-click on the new package that you created and select Paste -> Refactor Move. It is very important that you select Refactor Move and not just Move. When you refactor, it changes all the files that are affected by the move.
• You will be asked to confirm what is to be refactored. Click Refactor.
• When you are done, you will see that all the files are in the new package.

Only edit the ArrayPractive1.java file. You are to add code to several methods in this file.

• Look at the method fillValues.
  • Do not make any changes to it. It is to be used a reference.
  • Notice that the animate method is called each time the array is changed.
  • You will do a similar thing in each method that you modify.
  • Pass the current index to the animate method..
• Modify the printArray method.
  • Use a loop to display each element in the array.
  • Call the animate method as the last statement inside the loop. Pass the current index to the animate method.
• Modify the setValues method.
  • Use a loop to set each element in the array to the value that is passed to the method.
    • You must use the value that is passed to the method in order for the program to work correctly.
    • Do not read the value, other parts of the program will read the value and send it to the method.
  • Call the animate method as the last statement inside the loop. Pass the current index to the animate method.
• Modify the countFrequency method.
  • Use a loop to count the number of elements in the array that equal the value that is passed to the method.
    • You must use the value that is passed to the method in order for the program to work correctly.
    • Do not read the value, other parts of the program will read the value and send it to the method.
  • Call the animate method as the last statement inside the loop. Pass two parameters to it.
    • Pass the current index to the animate method
    • Pass the current count to the animate method.
• Modify the findMinimum method.
  • Use a loop to find the value to the smallest number in the array.
    • You must use the value that is passed to the method in order for the program to work correctly.
    • Do not read the value, other parts of the program will read the value and send it to the method.
  • Call the animate method as the last statement inside the loop. Pass two parameters to it.
    • Pass the current index to the animate method
    • Pass the current minimum to the animate method.

Run the program and try each of the buttons several times. Here are some screen shots of what the output should look like.

Filling the array with new values.	Printing the values from the array.
Setting all the elements in the array to the same value.	Counting the number of elements that equal a value.
Finding the minimum value in the array.

Activity Two

Download these files to the ProgrammingActivitiesFiles directory that you created in Tutorial 4.

• Airport.java
• AirportClient.java
• Pause.java

Before you modify the files, I want you to move them to a directory inside the Source Packages folder. Reivew these steps in Tutorial 3 for screen shots.

• Right-click the Source Packages and select New -> Java Package.
• Create a package that is named username.ch7.one (replace username with your webmail user name). Click Finish.
• While holding down the control key, select all the files that are in the default package. Right-click on one of the highlighted files and select Cut.
• Right-click on the new package that you created and select Paste -> Refactor Move. It is very important that you select Refactor Move and not just Move. When you refactor, it changes all the files that are affected by the move.
• You will be asked to confirm what is to be refactored. Click Refactor.
• When you are done, you will see that all the files are in the new package.

Only edit the Airport.java file. You will be creating instance variables and instance methods for the Airport class. There are more detailed instructions in the Airport.java file, but here is a short list of things that will be done in the assignment.

• Create an instance variable for the airport code, that is a string.
• Create an instance variable for the number of gates at the airport, that is an integer.
• Create an accessor and mutator for the airport code.
• Create an accessor and a mutaotr for the number of gates.
• If is very imporant that you name the methods as are detailed in the instructions in the file.

Run the program. Here are screen shots of what to expect. Be sure that your screen shots match these.

Submitting the Tutorial

To submit the tutorial, perform a Clean and Build on for the project. Be sure that you have followed the instructions for adding .java files to the JAR file before you do this step. If you are not sure, then review the steps in the Creating a NetBeans Project from Existing Sources page; it is in the section on Submitting Assignments.

You can verify that the JAR files are correct by clicking on the Files tab in NetBeans; open the project folder; open the dist folder; expand the JAR file. You should see the .class and .java files in the JAR. If you only see the .class files, then you need to review the instructions for adding the .java files. This is the same for NetBeans 5.5 and 6.

Using the operating system, not NetBeans, navigate to the dist directory for the project and upload the JAR file to me: Submit Assignment.