CSC 120 Lab 10

In this lab we will practice using methods of the String class, as well as JLabels, JButtons, JTextFields and JTextAreas.

1. If you didn't do so before today's class, watch this video that introduces the String class and some of the methods that may be used to process String data (approx. 9 minutes in length).
   
   
2. Get the beginning version of the program up and running.
   
   
   1. Create a new Netbeans project called Lab10. Make sure the Location is in your CSC120\Java folder.
      
      
   2. In your web browser, right click on MUFrame.java and choose Save Target As... (or Save Link As...) and save the files in the src folder of your project. 
      
      
   3. Compile and run the program to see how the interface looks.  Then type some text in the input field and click the button to see the output.  Then edit the value you typed in the input field, and click the button again.  Notice that the output JTextArea displays the results of our processing, which is only one operation at this time.
      
      
3. Add more code to the program to produce more kinds of output.
   
   
   1. Click HERE to see a sample finished version of this lab.
      
      
   2. When a user types something in the input field, then clicks the button, the program should produce all of the output shown in the example.
      
      
   3. Complete each of the other kinds of output ONE AT A TIME. Finish getting one working before you start working on the next one. For each of the other kinds of output shown in the sample output:
      
      
      • Add a method in the MUFrame class that will display output in the JTextArea.  Use the capitalizeInputText method as a pattern for your new methods.  Try to figure out by yourself which method(s) from the String class you'll need to use to produce a new String for the desired output. If you get stuck, ask for help but only after looking at the String class methods.
        
        Hint:  you may find it helpful to focus on these specific methods and operators of the String class when working on code to generate the sample output produced in this lab assignment:
        
        Operators:

        +

        Methods:

        toUpperCase
        toLowerCase
        charAt
        substring
        length
        indexOf
        

      • Add a line of code in the processInputButtonActionPerformed method of the MUFrame class to call the new method.
        
        
      • Run your program and fix any problems.
        Only add one new kind of output, then test & fix, then add another, then test & fix, etc.
        
        
4. Submit your Lab10 project as a .zip file to the D2L dropbox for grading, as usual.