Python Programming with the Java Class Libraries

Auteur

Richard Hightower is the CTO at Trivera Technologies, a global training and consulting company that focuses on Enterprise Java Development. He leads the adoption of new processes including extreme programming, and helps implement coding standards and guidelines for development. He has created an extensible caching mechanism for caching JSPs, XSLTs, and JDBC results and a pluggable XSLT engine framework. Formerly the senior software engineer for Java Architecture at Intel's Enterprise Architecture Lab, Rick is a frequent contributor to Java&#8482 Developer's Journal magazine and the coauthor of Java Tools for Extreme Programming (Wiley, 2001). At Intel, he led his team of developers in the design and implementation of three-tier, client-server applications; introduced O-O CASE tools; and created several frameworks using a variety of Java, COM, CORBA, and middleware technologies. Rick also created ICBeans and authored the patent application for this technology, which was awarded to Intel. A software engineer at heart, he specializes in development tools and processes, and developing enterprise applications using J2EETM, XML, UML, CORBA, JDBC, SQL, and Oracle technologies.

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Texte du rabat

Characterized by ease of use, richness of expression, and concise syntax, Python has remained a premier programming language for more than a decade, and is used by novices and professionals alike. In particular, its close relationship to Java&#8482 makes the two languages, when used in combination, ideal for Web and distributed enterprise application development.

This tutorial begins with coverage of some of the basics of Python programming. Using plenty of skill-building exercises and interactive programming sessions, this book will help those new to programming develop an understanding of concepts and practical techniques. For experienced programmers, the book demonstrates Python's breadth of capabilities and shows the ways that Python interfaces with Java APIs for professional application development.

Python Programming with the Java&#8482 Class Libraries: A Tutorial for Building Web and Enterprise Applications with Jython covers important topics such as:

• Fundamental programming concepts, including statements, expressions, interpreters, and compilers
• Python basics, including operators, string formatting, namespaces, classes, errors, and exceptions
• Object-oriented programming concepts
• File input/output
• Python's intrinsic functions
• Formatting, parsing, and manipulating strings
• Interfacing with the Java APIs and working with Java Streams
• Using Python and Java Swing to create GUIs
• Working with SQL and JDBC&#8482
• Python and Java applets In addition, the book contains instructions for downloading and installing the Python language and the Java Development Kit (JDK). Terminology, definitions, explanations, and numerous code samples make this book a useful learning experience.

Whether you are a sophisticated computer user new to programming or a serious application developer, Python Programming with the Java&#8482 Class Libraries will give you insight into the power of Python and the know-how to put it to work.

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Résumé

Python and Java are natural team-mates. Using Python together with the Java class libraries, developers at all levels can leverage Python's simplicity and Java's power together, building advanced Web and enterprise applications with remarkable speed and efficiency. Richard Hightower shows how, from start to finish. Using step-by-step examples, Hightower introduces the fundamentals of Python and object-oriented programming. You'll learn how to work with files, use Python's intrinsic functionality, and take advantage of Python's powerful string handling capabilities. Next, Hightower shows how to interface with Java APIs; how to build Swing graphical applications more easily with JPython; and, how to utilize SQL and JDBC to access enterprise data from Python programs. An important section shows how to use Python to solve problems that would otherwise require far more complex Java coding. For all Python programmers who want to take advantage of the Java class libraries. And. for all Java developers seeking faster, more efficient ways to build Web and enterprise applications.

Contenu

(NOTE: Each chapter concludes with a Summary.)
Preface.
1. Jython Overview.

Programming, Briefly.
Learning Python First.
Python the Language.
Starting with Python.
Basic Functions with Python.
Python as a Main Program.
The Fast Track.
The Power of Python.
Where Do You Go from Here?

2. Statements and Expressions.
Comments and Document Strings.
Statements.
Expressions.
Variables.
Data Types.
Python Collection Types.
Advanced Topic: Determining Types at Runtime.
Literals.

3. Operators and String Formatting.
Operators.
Formatting Strings-Modulus.

4. Control Flow.
The if Statement.
The while Statement.
The for Statement.
Putting It All Together.

5. Organizing Your Code.
Evolution of a Programmer.
Code Blocks and Namespaces.
Modules.
Functions and Methods.
Putting Things Together.
Classes.
Packages.
Globals and the Global Statement.

6. Object-Oriented Programming.
What Is OOP?
Objects and Classes.
Special Class Methods.
Inheritance.
Polymorphism.

7. Errors and Exceptions.
Syntax and Sequence Errors.
The Danger of Exceptions.
The try Statement.
The raise Statement.
Classes and Instances as Exceptions.
Getting the Most Out of Your Exceptions.

8. Working with Files.
Simple File Operations.
Common File Methods.
Putting It All Together: The Address Book Example.
The Full address3.py Code.
Persisting Objects with pickle.
pickle and the Address Book Application.

9. Built-In Functions.
Conversion.
Namespace: dir(), globals(), locals(), vars().
Type Checking: callable(), type().
Operations.
Advanced Topic: Functional Programming.
Advanced exec and eval.

10. Working with Strings.
Conversion: atoi(), atof(), atol().
Case Change: capitalize(), capwords(), swapcases(), lower(),upper().
Finding: find(), rfind(), index(), rindex(), count(), replace().
Splitting and Joining: split(), splitfields(), join(), joinfields().
Stripping and Parsing: lstrip(), rstrip(), strip().
Adjusting Text: ljust(), rjust(), center(), zfill(), expandtabs().

11. Interfacing with Java.
Using the Java APIs.
Java Types.
Java Constructors.
Java Arrays and jarray.
Java Arrays and Methods.
Bean Properties.
Properties.
Java Event Handling.
Subclassing Java Classes.
Advanced Topics.

12. Working with Java Streams.
The Java Way of File Operations.
Text Streams.
Binary Streams: InputStream and OutputStream.
DataInput and DataOutput.
The File Class.
The RandomAccessFile Class.
The StreamTokenizer Class.
Persisting Objects with Java Streams.
Using Java Streams to Work with Memory.

13. JFC Fundamentals.
Components and Containers.
JFrame.
Handling Events with JFrame.
The Python Way of Handling Events.
The Class Hierarchy for JFrame and Frame.
JPanel.
JLabel.
JComponent.
JButton.
JTextField.
JCheckBox.
JRadioButton.
List and Jlist.

14. First Swing Application, Layout, and Menu.
Putting Things Together with Basic Java GUIs.
Adding an Input Form for an Address Entry: The Prototype.
Adding an Input Form for an Address Entry: First Cut.
Adding a Main Window for the Address Book Application: Prototype.
Adding a Main Window: Fir…