Developing Industrial Applications in Java(TM)
Java is a Registered Trade Mark of Oracle
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Objectives
- Master the concepts of Java
- Secure your Java applications exception handling language
- Master Java threads
- Learn Applet creation and use
- Learn how to call C/C++ functions from Java programs through JNI
- Use collections of objects in Java
- Master the main utility classes in Java
- Optimize the Java code
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Practical exercises may be done either locally on the PC or by using the MicroEJ SDK to target an embedded microcontroller |
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Course environment
- A PC for two trainees with
- The JDK
- Eclipse development environment for Java applications
- Course material, printed (for face to face trainings) and in PDF format
- Exercises source code (with solutions)
Prerequisites
- Knowledge of a programming language like C or C + +
First Day
Introduction
- History of Java
- Features of Java
- Portability
- Security
- Robustness
- Simplicity
- Multithreading
- The JDK (Java Development Kit)
- The virtual machine
- The basics of JAVA
- Data types
- Operators
- Flow control
| Exercise: |
Write the "Hello World" program in Java |
Object Programming in Java
- Object-oriented programming
- Encapsulation
- Inheritance
- Polymorphism
- Interfaces
| Exercise: |
Write a producer-consumer program in java (plant) |
- The nested classes and interfaces
- Internal Classes
- Anonymous Classes
- Typecasts and instanceof operator
- Packages
- definition
- import
- search order
| Exercise: |
Rewrite the plant using anonymous classes |
Advanced aspects
- Generics in Java
- Generic Classes (parameterized)
- Generic Methods
| Exercise: |
Configuring the plant with generic types |
- Java exceptions
- Presentation of exceptions and their mechanism
- Capture and propagation of exceptions
- Exception classes
- Business exceptions
| Exercise: |
Controlling the plant with exceptions |
Second Day
Multitask programming in Java
- What is a thread
- The Java threading API
- Inter-thread synchronization
- Thread scheduling
- Asynchronous communication between threads
| Exercise: |
Create two plants working in parallel, the second consuming the products of the first |
Java utility classes
- Manipulating strings
- The String class
- The StringBuffer class
- Input/Output
- The java.io package
- Standard I/O read and write
- Reading and writing text files
| Exercise: |
Write a program that reads a text file and print one word per line |
- Mathematical computations:
- Date management
- Internationalization
- Environment access
- The System class
- The Runtime class
| Exercise: |
Modify the program to sort the result (using the "sort" command) |
Third Day
Data management in Java
- Collections
- The collection types and interfaces
- The collection abstract classes
- The implementation classes
- The Iterator interface
- Comparing and sorting objects
- Rational use of collections
| Exercise: |
Rewrite the previous program to count the number of occurrences of each word and display the 10 most frequent |
Applets
- What is an Applet
- The Applet-specific APIs
- Declaring an Applet in HTML
- Applets and security
- Signature and certificate
- Generating a signed Applet
- Communicating between Applets
- Communicating with the browser
The Java Native Interface (JNI)
- Interfacing Java code with C/C++ code
- Overview of the Java Native Interface
- Calling a native method or function
- Naming conventions for called functions
- Passing Java objects to C/C++ code
- Accessing Java objects from C/C++ code
- SWIG (Simplified Wrapper and Interface Generator)
- Interfacing Java code to existing C/C++ code.
Fourth Day
Packages, Interfaces and "jar" files
- Creating a Package
- Creating an Interface
- Creating a Jar file
Security in Java
- Security of the Java 2 platform
- The Class Loader
- Security Domains
- The Access Controller
- The Security Manager
- Security rules files
- Permissions
- The FilePermission class
- Cryptography
- Digital signatures
- Certificates
Optimization
- Just in Time (JIT) compiler
- Ahead of Time (AoT) static compiler
- Choosing the compiling mode
- Some rules to write efficient code
- Monitoring tools
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