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Trail: Learning the Java Language: Table of Contents

Object-Oriented Programming Concepts

What Is an Object?
What Is a Class?
What Is Inheritance?
What Is an Interface?
What Is a Package?
Questions and Exercises: Object-Oriented Programming Concepts

Language Basics

Variables Primitive Data Types Arrays Summary of Variables Questions and Exercises: Variables
Operators Assignment, Arithmetic, and Unary Operators Equality, Relational, and Conditional Operators Bitwise and Bit Shift Operators Summary of Operators Questions and Exercises: Operators
Expressions, Statements, and Blocks
Questions and Exercises: Expressions, Statements, and Blocks
Control Flow Statements The if-then and if-then-else Statements The switch Statement The while and do-while Statements The for Statement Branching Statements Summary of Control Flow Statements Questions and Exercises: Control Flow Statements

Classes and Objects

Classes Declaring Classes Declaring Member Variables Defining Methods Providing Constructors for Your Classes Passing Information to a Method or a Constructor
Objects Creating Objects Using Objects
More on Classes Returning a Value from a Method Using the this Keyword Controlling Access to Members of a Class Understanding Instance and Class Members Initializing Fields Summary of Creating and Using Classes and Objects Questions and Exercises: Classes Questions and Exercises: Objects
Nested Classes Inner Class Example Summary of Nested Classes Questions and Exercises: Nested Classes
Enum Types
Questions and Exercises: Enum Types
Annotations
Questions and Exercises: Annotations

Interfaces and Inheritance

Interfaces Defining an Interface Implementing an Interface Using an Interface as a Type Rewriting Interfaces Summary of Interfaces Questions and Exercises: Interfaces
Inheritance Overriding and Hiding Methods Polymorphism Hiding Fields Using the Keyword super Object as a Superclass Writing Final Classes and Methods Abstract Methods and Classes Summary of Inheritance Questions and Exercises: Inheritance

Numbers and Strings

Numbers The Numbers Classes Formatting Numeric Print Output Beyond Basic Arithmetic Summary of Numbers Questions and Exercises: Numbers
Characters
Strings Converting Between Numbers and Strings Manipulating Characters in a String Comparing Strings and Portions of Strings The StringBuilder Class Summary of Characters and Strings Questions and Exercises: Characters and Strings

Generics

Introduction
Generic Types
Generic Methods and Constructors
Type Inference
Bounded Type Parameters
Subtyping
Wildcards
Type Erasure
Using Non-Reifiable Parameters with Varargs Methods
Summary of Generics
Questions and Exercises: Generics

Packages

Creating and Using Packages Creating a Package Naming a Package Using Package Members Managing Source and Class Files Summary of Creating and Using Packages Questions and Exercises: Creating and Using Packages

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