Java Essentials

(RAT220 – 4 days)

Java Programming for Programmers

For the developer, the Java language is the centrepiece of Sun's Java platform. It is built on a platform independent runtime and forms the foundation for common libraries and middleware. The Java Essentials course is an introduction to the language for experienced programmers who wish to acquire Java language skills. It develops the concepts and syntax through lectures,

discussion and hands-on lab exercises.

Featureses

• Introduce the Java language from a modern object-oriented perspective
• Understand object-oriented programming and design in Java
• Implement common patterns in Java
• Emphasise good practice and outline idioms for safe and sensible use of language features

Audience

The course is suitable for programmers who have experience of a modern programming language and at least some familiarity with object-orientation.

Additional Details

Agenda:

The Java Platform The JVM and bytecode Deployment The JDK and J2SE J2SE 5.0 versus earlier versions Applications, applets, servlets and others · Designing with Java in mind A Tour of Java Statements, blocks and scope Comments Classes, methods and fields The main method Packages Basic I/O Writing and running a program The Type System Built-in types Type conversions Declarations and initialization Object types, references and instantiation The null reference · String · Arrays Metadata Control Flow if else and switch selection while and do loops Traditional and enhanced for loops Exception handling Exception safety Classes and Objects Methods and overloading public, private and package visibility The this reference Initialisation and Finalisation Field initialisation Initialiser blocks Constructors final and static final fields The garbage collector finalize and its pitfalls Interfaces Interfaces and polymorphism Implementing interfaces Designing with interfaces Multiple interfaces Interface extension Casting, instanceof and guidelines on their use

Extending Classes Single inheritance of implementation Abstract classes protected visibility Accessing and initialising the superclass final methods and classes Exception Objects Checked exceptions, unchecked exceptions and errors finally gotchas Strings Manipulating and comparing strings String conversions to and from other built-in types The toString method String performance pitfalls StringBuffer and StringBuilder Collections The collections API Overview of generics in Java Iterators Using built-in wrappers to store primitive values Autoboxing and unboxing Collection wrappers and utilities Class Scope static methods and fields static top-level classes Named and anonymous inner classes Member and local inner classes static import enum types Library Overview File handling Threading and synchronization Reflection Applets The AWT and Swing Events and listeners JDBC Network programming RMI JNI J2EE