Java Fundamentals

Course review:

Training goes through the essential concepts and features of the Java Programming Language, focusing on exceptions, basic input/output, concurrency, regular expressions, Java collections framework and the platform environment. The course finishes when all basic Java features have been explained and trained.

Getting Started

• The Java Technology Phenomenon
• How to write basic "hello world" application
• How to compile and execute Java code
• How to make the code a bit more complex

Java Syntax

• Object-Oriented Programming Concepts
• Variables, arrays, data types, operators, and control flow
• What are reference variables
• Classes and objects
• What inheritance is and how it works
• What Interfaces are, why they are written and how
• How to use Java String and Number objects and how to format data for output
• What packages are for and why we must use import directive

Java Objects

• Java classes overview
• Java class life cycle
• Class modifiers and inheritance
• Overloading" and overriding
• Class constructors
• Polymorphism
• Relationships: IS and HAS
• 'static' keyword
• When to use static members

Java Collections

• Collection interface
• Lists, maps and sets
• Collections and arrays
• Concurrency

Java Memory

• Garbage collector
• Heap and stack
• Object life cycle
• 'finalize()' method

Java Exceptions

• The general idea of Java Exceptions
• Runtime and 'real' exceptions
• Throwing an exception
• 'try...catch' statements
• 'throws' declaration
• Designing your own exceptions

Java Concurrency

• Threads and concurrency
• Threaded tasks
• Joining threads
• Class variables visibility