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Trail: Essential Classes: Table of Contents

Exceptions

What Is an Exception?
The Catch or Specify Requirement
Catching and Handling Exceptions The try Block The catch Blocks The finally Block The try-with-resources Statement Putting It All Together
Specifying the Exceptions Thrown by a Method
How to Throw Exceptions Chained Exceptions Creating Exception Classes
Unchecked Exceptions — The Controversy
Advantages of Exceptions
Summary
Questions and Exercises

Basic I/O

I/O Streams Byte Streams Character Streams Buffered Streams Scanning and Formatting Scanning Formatting I/O from the Command Line Data Streams Object Streams
File I/O (Featuring NIO.2) What Is a Path? (And Other File System Facts) The Path Class Path Operations File Operations Checking a File or Directory Deleting a File or Directory Copying a File or Directory Moving a File or Directory Managing Metadata (File and File Store Attributes) Reading, Writing, and Creating Files Random Access Files Creating and Reading Directories Links, Symbolic or Otherwise Walking the File Tree Finding Files Watching a Directory for Changes Other Useful Methods Legacy File I/O Code
Summary
Questions and Exercises: Basic I/O

Concurrency

Processes and Threads
Thread Objects Defining and Starting a Thread Pausing Execution with Sleep Interrupts Joins The SimpleThreads Example
Synchronization Thread Interference Memory Consistency Errors Synchronized Methods Intrinsic Locks and Synchronization Atomic Access
Liveness Deadlock Starvation and Livelock
Guarded Blocks
Immutable Objects A Synchronized Class Example A Strategy for Defining Immutable Objects
High Level Concurrency Objects Lock Objects Executors Executor Interfaces Thread Pools Fork/Join Concurrent Collections Atomic Variables Concurrent Random Numbers
For Further Reading
Questions and Exercises: Concurrency

The Platform Environment

Configuration Utilities Properties Command-Line Arguments Environment Variables Other Configuration Utilities
System Utilities Command-Line I/O Objects System Properties The Security Manager Miscellaneous Methods in System
PATH and CLASSPATH
Questions and Exercises: The Platform Environment

Regular Expressions

Introduction
Test Harness
String Literals
Character Classes
Predefined Character Classes
Quantifiers
Capturing Groups
Boundary Matchers
Methods of the Pattern Class
Methods of the Matcher Class
Methods of the PatternSyntaxException Class
Unicode Support
Additional Resources
Questions and Exercises: Regular Expressions

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