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Java™ Programming Language

Identifiers, Keywords, and Types ........................................................................... 3-1

Objectives ................................................................................................................................................. 3-2

Relevance .................................................................................................................................................. 3-4

Comments ................................................................................................................................................ 3-5

Semicolons, Blocks, and White Space .................................................................................................. 3-6

Identifiers ................................................................................................................................................. 3-9

Java Programming Language Keywords .......................................................................................... 3-10

Primitive Types ..................................................................................................................................... 3-11

Logical – boolean ................................................................................................................................. 3-12

Textual – char ....................................................................................................................................... 3-13

Textual – String ................................................................................................................................... 3-14

Integral – byte, short, int, and long ............................................................................................... 3-15

Floating Point – float and double .................................................................................................... 3-17

Variables, Declarations, and Assignments ........................................................................................ 3-19

Java Reference Types ............................................................................................................................ 3-20

Constructing and Initializing Objects ................................................................................................ 3-21

Memory Allocation and Layout .......................................................................................................... 3-22

Explicit Attribute Initialization ........................................................................................................... 3-23

Executing the Constructor ................................................................................................................... 3-24

Assigning a Variable ............................................................................................................................. 3-25

Assigning References ............................................................................................................................ 3-26

Pass-by-Value ........................................................................................................................................ 3-27

The this Reference ............................................................................................................................... 3-32

Java Programming Language Coding Conventions ........................................................................ 3-36

Expressions and Flow Control ............................................................................... 4-1

Objectives ................................................................................................................................................. 4-2

Relevance .................................................................................................................................................. 4-4

Variables and Scope ................................................................................................................................ 4-5

Variable Scope Example ......................................................................................................................... 4-6