... documentation and the security path of the Java Turorial at http:/ /java. sun.com/docs/books/tutorial/security1.2/index.html. Security Problems andJava Security Testing Finally, the Java language ... policytool—A Java application that comes with the JDK and that provides you with a GUI tool for creating and maintaining policy files. 2. keytool—Used to create digital signatures and key pairs and ... part of Java. In the JDK 1.0 model, the "sandbox" concept was introduced. In the sandbox model, all local code (JDK-provided code) was run as part of the Java Virtual Machine, and all...
... security, performance enhancements, and administration. Security is discussed in detail in Chapter 13, " ;Java and Security," and, indeed, many of the Java security concerns that have ... understand the information provided in the interface and can envision what you could use it for, it becomes apparent how your name got on so -and- so's e-mail list after you visited so- and- so's ... competition from its Java- only brother, Java RMI. Chapter 7. Web Servers, Server-Side Java, and More • Inside an HTTP Server • Common Gateway Interface and CGI Scripts • Servlets • Dynamic...
... name and version Before Java Web Servers and Web servers with built-in Java support, a Java program could be run as a CGI program in a slightly roundabout way as long as there was a Java Virtual ... security, performance enhancements, and administration. Security is discussed in detail in Chapter 13, " ;Java and Security," and, indeed, many of the Java security concerns that have ... servlets andJava Server Pages can be made to create documents dynamically and supplant the universal acceptance of a Web browser. What if we were able to take the power of IDL or RMI solutions and...
... aDB.findNext();71Chapter 1 Fundamentals1.111.111.111.111.111.11 Descending Indexes and Index LifespanDescending Indexes and Index LifespanDescending Indexes and Index LifespanDescending Indexes and Index LifespanDescending Indexes and Index LifespanDescending Indexes and Index LifespanYou have already seen how indexes can be useful when it comes to keeping data in a sortedorder. Even if the data isn't physically sorted, the index allows you to retrieve it in the order youwant. ... testShowMeThis is one of the longer test programs I have provided you. A big part of that is due to thefact I created a CSV (Comma Separated Value) file called fuel_prices.csv which has lines in itlooking like this:80Chapter 1 Fundamentalsroland@logikaldesktop:~/fuelsurcharge2$ source ./env1 roland@logikaldesktop:~/fuelsurcharge2$ javac showMe .java jroland@logikaldesktop:~/fuelsurcharge2$ javac testShowMe .java roland@logikaldesktop:~/fuelsurcharge2$ ... UNDERGRAD JAVA5 01 JAVAAnd Abstract Algebra 120120120 NNYNYNN 0930 6 F JAVA1 0200 Intermediate JAVA 300020000 NYNYNYN 0930 3 T JAVA1 0100 Introduction to JAVA 120120120 NYNYNYN 0800 3 T Records 2 and...
... 03.50082Chapter 1 FundamentalsYou will notice at listing lines 53 through 57 that I chose to add some more records. I justwanted to make things painfully obvious during the rest of the test. There is nothing really magicabout the values in those records, other than the fact they are easy to spot.Pay special attention to listing line 82. Do you remember what I said earlier? I deliberatelyleft this line where it was to prove that statement. Now, let's take a look at the output.roland@logikaldesktop:~/fuelsurcharge2$ javac doeHistory .java roland@logikaldesktop:~/fuelsurcharge2$ javac testpackDoeHistory .java roland@logikaldesktop:~/fuelsurcharge2$ java testpackDoeHistory ... those records, then attempt to add threerecords which have the same primary key value.What happens?If you manage to get the records added, what happens when you attempt to reIndex()?How about when you try to undelete?91Chapter 1 – Fundamentals1.131.131.131.131.131.13 Deleting and PackingDeleting and PackingDeleting and PackingDeleting and PackingDeleting and PackingDeleting and PackingI mentioned much of this information earlier but we are going to go over it again in detailbecause it tends to catch most newbies offguard even after they have been told a hundred times.Deleting a record in an xBASE file does not physically delete the record (in most versions), nordoes ... The main menu/form for this application looks much like manyother applications implementing the CUA (Common User Access) interface. It has a main menuacross the top, and those drop down when you click on the entries.96Chapter 1 – Fundamentals20070905,289.320070912,292.420070919,296.420070926,303.220071003,304.820071010,303.520071017,303.920071024,309.420071031,315.720071107,330.320071114,342.520071121,341.020071128,344.4Actually it has over 100 lines in it, but I'm certainly not going to print it here. If you want,you can visit the Department of Energy Web site and pull down the spreadsheet which has historicdiesel fuel prices, and create your own file.In theory I could have done the Util call found at listing line 17 inside of the doeHistory class,but I didn't have a warm and fuzzy feeling about the actual runtime scope of Util in all situations.Feel free to experiment on your own with placing this call at various places in the class hierarchy.Listing lines 26 through 78 serve no other purpose than to read a line from this CSV and loadit as a record in the database. Since I tried to implement localized error handling and providemeaningful error messages, this code is a lot larger than you will see in most examples whichwould simply trap all exceptions at one place and print a stack trace.We should discuss this code briefly for those who have never tried to read lines in from a textfile before. First you have to create a FileReader object as I did at listing line 33. Once you havedone that you can create a BufferedReader object to read from and buffer the FileReader objectyou just created as I did at listing line 40. The second parameter (4096) is an optional buffer sizein bytes. If you do not pass a buffer size, there is some value which gets used by default. One has to use a BufferedReader object if one wishes to read a line of input at a time as wedo at listing line 46. The readLine() method of a BufferedReader object ensures that we either getall characters as a String up to the newLine character or the end of the stream. ...
... Inc. really needs to get into thispersonal file server market. There are probably still a lot of tools out there which support Btrieve and let end users create things by picking and pointing.Memory and bandwidth issues simply cannot be overlooked when designing an application. Iprovided only a few hundred records for our test database and I'm creating the files locally. Whathappens when you modify this application to open a DBF and NDX which are on a Web site orremote file server? Unless you are on dialup, you probably have enough bandwidth to transferfewer than 400 records. How about when the file is approaching 2GB and the end user is on asatellite connection with a 120MB per day bandwidth restriction? ... is a resourceintensive pig that imposes severe dataaccess restrictions by requiring either exclusive access to the entire data set, or a live data monitorcommunicating with the database to monitor for any and all record changes.102Chapter 2 – MegaZillionaire Application2.22.22.22.22.22.2Supporting ClassesSupporting ClassesSupporting ClassesSupporting ClassesSupporting ClassesSupporting ClassesMegaDBF .java 1) package com.logikal.megazillxBaseJ;2)3) import java. io.*;4) import java. util.*;5) import org.xBaseJ.*;6) import org.xBaseJ.fields.*;7) ... interveningdatabase engine locking all files and providing all access. We don't have that, so we are alreadyliving in multiuser Hell, and choose to handle the multiuser problem...
... /*;;;;;136Chapter 2 – MegaZillionaire ApplicationMegaXbaseBrowsePanel .java 1) package com.logikal.megazillxBaseJ;2)3) import java. io.*;4) import java. awt.*;5) import java. awt.event.*;6) import javax.swing.*;7) import java. util.*;8) import java. text.*;9)10) ... thepreferred size so the date column would display completely without requiring a user to manuallyresize it.We actually never call the updateText() method. That is just a method I carry around frompanel class to panel class.MegaXbaseEntryPanel .java 1) package com.logikal.megazillxBaseJ;2)3)4) import java. awt.*;5) import java. awt.event.*;6) import javax.swing.*;7) import java. util.*;8) import java. text.*;9)10) ... library and many Java developers have begun migrating away from Swing. When it comes to the subject of layoutmanagers and Java, it looks like the subject was “tabled until later” and later still hasn't come.You position objects in a GridBagLayout via a GridBagConstraints object. Ordinarily youwill fill in only the anchor and gridwidth values, leaving the rest of the GridBagConstraints fieldsat their default values. Normally gridwidth is a numeric constant such as 1 or 2, but it can be acouple of “special”...
... We have used the Field put() method and the DBF write() method many times over inprevious source listings.MegaXbase .java 1) import java. awt.*;2) import java. awt.event.*;3) import javax.swing.*;4) import javax.swing.plaf.*;5)6) import com.sun .java. swing.plaf.windows.WindowsLookAndFeel;7) import ... I started writing the rest of the application.There was actually a method to the madness. If the Import function was simply another panel, itwould be possible for a user to choose a file name, then leave the screen by selecting anothermenu option. He or she would not have actually performed the import, but might believe it wascomplete. Making this a dialog stopped that from happening.MegaXImport .java 1) package com.logikal.megazillxBaseJ;2)3) import java. awt.*;4) import java. awt.event.*;5) import javax.swing.*;6) import javax.swing.filechooser.*;7) import java. text.*;8) ... com.sun .java. swing.plaf.windows.WindowsLookAndFeel;7) import com.sun .java. swing.plaf.gtk.GTKLookAndFeel;8) import com.sun .java. swing.plaf.motif.MotifLookAndFeel;9)10) import com.logikal.megazillxBaseJ.MegaXImport;11)...
... family will read and understand, and you slow down and get them right. First, for the technical folks. Mike Loukides and Kyle Hart manage to get me to write these books, and write them fast, ... documents, binding schemas, andJava classes from the examples, and find other supplemental material. You'll also learn about new editions, extra goodies found only online, and more, so check it ... Nutshell Handbook, the Nutshell Handbook logo, and the O'Reilly logo are registered trademarks of O'Reilly & Associates, Inc. Many of the designations used by manufacturers and sellers...
... are 3 by 2, and the figure shows the major dimension down and the minor dimension across. Java and SOAP 24 how to specify the encoding style to be used for serializing and deserializing ... on XML and related topics. A good starting point for general information is XML in a Nutshell, by Elliotte Rusty Harold and W. Scott Means (O'Reilly). For Java developers, Java and XML ... complex method parameters and return values such as arrays andJava beans. It covers the mechanisms available for mapping these types to Java classes on both client and server systems. Chapter...
... #15) javac -source 1.4 -target 1.4 -d . MegaXImport .java 16) javac -source 1.4 -target 1.4 -d . MegaXbaseBrowsePanel .java 17) javac -source 1.4 -target 1.4 -d . MegaXbaseEntryPanel .java 18) javac ... Yourassignments will require you to create new conditions in this structure. Once we identify whichmenu option was chosen based upon the text of its action we need to either launch the associateddialog or shuffle the correct panel to the top. We need the name each panel was added with inorder to find it with the show() method.testMegaXbase .java 1) import java. awt.*;2) import java. awt.event.*;3) import javax.swing.*;4) import javax.swing.plaf.*;5)6) import com.logikal.megazillxBaseJ.*;7)8) ... tocompile it. The safe thing for me to do was scan through the list of Look and Feels which Java “thought” were installed. Until the advent of Java 1.6 and the creation of a file calledswing.properties, Java had no real way of finding out about any look and feel Sun didn't provide.Traditionally, applications will include an extra JAR file containing a...
... 3, Java Servlets and JavaServer Pages: Jakarta Tomcat,” introduces Tomcat,which is an HTTP server and a container for Java Servlets and JavaServer Pages.Chapter 4,“XML and XSLT: Xerces and Xalan,” ... folder with the javac.exe Java compiler. Here is a listing of the batch file:javac de/tarent/forum/BonForumUtils .java -d /classesjavac de/tarent/forum/BonLogger .java -d /classesjavac -classpath ... Java , and JSP: A Case Study inDeveloping a Web ApplicationContents At a Glance1 Introduction and Requirements2 An Environment for Java SoftwareDevelopment3 Java Servlets and JavaServer...
... watermark.50Chapter 3 Java Servlets and JavaServer Pages: Jakarta Tomcatof files, including all the subfolders that you need, some vital configuration files, and copies of all the Java servlet and JSP examples ... watermark.54Chapter 3 Java Servlets and JavaServer Pages: Jakarta TomcatTake a look at this API page, and you will see the top-level logical design of Java servlets and JSPs.3.7.2 Learning About Java ServletsBe ... Tomcat Examples of Servlets and JSPsOne of the best ways to learn about Java servlet and JSP technologies is to study the examples that are included with Tomcat.You are urged to try all the examples. You...