Constructing Packages with BlueJ:
=====================================

Say that you want to use BlueJ to construct a folder, Assign1, 
that contains a package named P. 

Within package P you wish to insert a class, C.java. 

Here is what you do:

    Click on the Project menu, and click on its New Project menu item. 

    A file dialog appears that asks you the name of the folder you wish 
    to create---type Assign1 and press the create button.

    Important: You can tell BlueJ where on your disk you wish to create 
               the folder, Assign1. 
               Remember where you created it --- this will make your 
	       life easier to find your work 

    As a result of the previous step, BlueJ creates a new folder named Assign1,
    and it opens a new window presenting the folder to you. 

    (Alas, in BlueJ, a folder (directory) is called a ``project''!)

    Now, we are ready to create the package, P: 

         Within the Assign1 window, click on the Edit menu, 
         and click on its New Package menu item. 

         A dialog appears and asks you for the name of the package
         ---type P (name of package) and press OK.

    As a result of the previous step, a folder named P has been created 
    inside folder Assign1 (check with file browser !)

    Now you are ready to include class C within package P. 

    You can do this two ways:

    1. Write it from scratch:

           double-click on folder P; 
           this opens it and displays a new window.
           within the window for P, click on the New Class button. 

           A dialog appears and asks for the name of the class
	   ---type C and press OK.

           The previous step creates a file, C.java, inside folder P. 

           When you open C.java, you will find that BlueJ has constructed 
           an empty class that looks like this:

        	package P;
        	public class C
        	{ ... }

	   At this point, you can edit and compile the various java-files 
	   as usual.

    2. Copy it from somewhere else:

	   Say that class C is already written and saved as the file, C.java, 
	   in another folder. 

           You can copy it into the package by:

	      double-click on folder P; 
              this opens the package and displays a new window.

    	      click on the Edit menu and then click on the 

		   "Add Class from File" menu item.

              A file dialog appears; use this to locate C.java; 

              once you have located it, press the Add button.