Java Examples in a Nutshell
by David Flanagan


Here are new changes that appear in the 12/98 reprint:


(preface) After the heading and paragraph "Java Examples Online", added a
heading entitled "Licensing Inforamtion" with the following information:

	You may study, use, modify, and distribute these
	examples for any non-commercial purpose, as long
	as the copyright notice at the top of each example
	is retained.  If you would like to use the code in a
	commercial product, you may purchase a commercial use
	license from the author for a nominal fee.  Visit
	http://www.davidflanagan.com/javaexamples/ for
	information on obtaining such a license.

	Please note that the examples are provided as-is,
	with no warranty of any kind.


(10) Example 1-8:

	if (x == 1) return 1;

now reads:

	if (x <= 1) return 1;


(27) Example 2-6, lines 32-33:
 inserted the word "the" between "and specified"


(114) Example 6-5, replaced code with new code:

import java.applet.*;
import java.awt.*;
import java.awt.event.*;

public class CardLayoutExample2 extends Applet {
  public void init() {
    // Create a layout manager, and save a reference to it for future use.
    // This CardLayout leaves 10 pixels margins around the component.
    final CardLayout cardlayout = new CardLayout(10, 10);
    // Specify the layout manager for the applet
    this.setLayout(cardlayout);
    // Create a listener to invoke the next() method of cardlayout.
    ActionListener listener = new ActionListener() {
      public void actionPerformed(ActionEvent e) {  // When button is clicked
        cardlayout.next(CardLayoutExample2.this);   // display the next one.
      }
    };
    for(int i = 1; i <= 9; i++) {
      Button b = new Button("Button #" + i);
      b.addActionListener(listener);
      this.add("Button" + i, b);   // Specify a name for each component
    }
  }
}



(118) Example 6-8, header comments:

	*margin_height -- how much space...left and right
	*margin_width -- how much space...top and bottom

now reads

	*margin_height -- how much space...top and bottom
	*margin_width -- how much space...left and right


(131) Example 6-13, changed the following line:

  	Frame f = new Frame("InfoDialog Test");
To:
	Frame f = new Frame("YesNoDialog Test");


(158)Changed the line:

	// Ask whether to overwrite it
        System.out.print("Overwrite existing file " + to_name + "? (Y/N): ");

To:

  	// Ask whether to overwrite it
  	System.out.print("Overwrite existing file " + to_file.getName() +
                   "? (Y/N): ");

Since this adds a line, we removed the blank line
(to keep current page breaks) before:

  	// If the destination is a directory, use the source file name


(191) Example 9-4, changed the following line:

  	to_server.println("GET " + filename);

to:

  	to_server.println("GET " + filename + "\n");



(238) second text paragraph, changed:

	"manifest.stub" to "manifest"  (keep in italics)

Also, changed the following line:

  	Name: oreilly/beans/MultiLineLabel.class
To:
	Name: oreilly/beans/yesno/MultiLineLabel.class

Finally, changed the following line:

  	% jar cfm MultiLineLabel.jar manifest.stub
							oreilly/beans/MultiLineLabel.class
To:

  	% jar cfm MultiLineLabel.jar manifest
		oreilly/beans/yesno/MultiLineLabel.class



(266) and (267) changed the following line:

  String filename = f.getFile();             // Get the user's response

To:

  String filename = f.getDirectory() + f.getFile();   // Get response


(274) Example 14-1, removed the following line:

  	import java.applet.*;



(304) Example 15-4 removed the line: "import Mud.*;"
(307) Example 15-5 same change
(314) Example 15-6 same change
(315) Example 15-7 same change


(330) After the line "Object value = rs.getObject(i+1);", added the line:

	if (value != null)

and changed indentation of the next line so the code now reads:

	Object value = rs.getObject(i+1);
        if (value != null)
          overwrite(line, colpos[i] + 1, value.toString().trim());

(Don't change the indent of the second "overwrite" line.)

Finally, since we added a line, we cut the blank line before:

  	// Finally, end the table with one last divider line


(appendix) completely removed

(index) now starts on page 369 and has been
rerun to reflect the removal of the appendix