Java: A Popular Programming Language
Increment and Decrement Operators
Unary operators that increment
or decrement a variable by 1
Prefix: ++var or --var
Postfix: var++ or var--
Setting up a Java Development Environment
Java Development Kit (JDK)
Integrated Development
Environment (IDE)
Examples: IntelliJ IDEA,
Eclipse, NetBeans
Java Source Code and Bytecode
Source code: written in human-
readable language
, Bytecode: compiled version of
source code
Java Variables and Data Types
Variables: named memory
locations
Data types: define the values
that can be stored
Primitive: byte, short, int,
long, char, float, double,
boolean
Reference: arrays, strings,
classes, interfaces
Floats and Doubles: Differences and Uses
Floats: single-precision
floating-point numbers
Increment and Decrement Operators
Unary operators that increment
or decrement a variable by 1
Prefix: ++var or --var
Postfix: var++ or var--
Setting up a Java Development Environment
Java Development Kit (JDK)
Integrated Development
Environment (IDE)
Examples: IntelliJ IDEA,
Eclipse, NetBeans
Java Source Code and Bytecode
Source code: written in human-
readable language
, Bytecode: compiled version of
source code
Java Variables and Data Types
Variables: named memory
locations
Data types: define the values
that can be stored
Primitive: byte, short, int,
long, char, float, double,
boolean
Reference: arrays, strings,
classes, interfaces
Floats and Doubles: Differences and Uses
Floats: single-precision
floating-point numbers
