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Java

578What Are Enums and Why They Matter
579Basic Enum Declaration Syntax
580Enum Values Are Public Static Final Constants
581Accessing Enum Constants
582The values() Method: Iterating All Constants
583The valueOf(String) Method
584Using Enums in switch Statements
585Enums Are Classes: toString, equals, and hashCode
586Type Safety: Enums vs Constants
587Declaring Fields in Enums
588Enum Constructors: Syntax and Restrictions
589Initializing Enum Constants with Constructor Arguments
590Adding Getter Methods to Enums
591Instance Methods in Enums
592Abstract Methods in Enums
593Constant-Specific Method Implementations
594Static Fields and Methods in Enums
595Multiple Fields and Complex Enum State
596Enums vs Classes: When to Use Fields and Methods
597Introduction to EnumSet: A Specialized Set for Enums
598Creating EnumSets: Factory Methods Overview
599EnumSet Performance: Bit Vector Implementation
600EnumSet Operations: Add, Remove, and Bulk Modifications
601Introduction to EnumMap: A Specialized Map for Enum Keys
602Creating and Using EnumMap
603EnumMap Performance: Array-Based Implementation
604EnumMap Iteration Order and Completeness
605Practical Use Cases: State Machines and Configuration
606The ordinal() Method: Zero-Based Enum Indexing
607Why ordinal() Should Be Avoided in Business Logic
608The name() Method: Getting the Enum Constant's Identifier
609name() vs toString(): When to Override toString()
610Using Enums in switch Statements: Traditional Syntax
611Switch Expressions with Enums (Java 14+)
612Exhaustive Switch Coverage and Compiler Warnings
613Pattern Matching with Enums in Switch (Java 21+)

Java

578What Are Enums and Why They Matter
579Basic Enum Declaration Syntax
580Enum Values Are Public Static Final Constants
581Accessing Enum Constants
582The values() Method: Iterating All Constants
583The valueOf(String) Method
584Using Enums in switch Statements
585Enums Are Classes: toString, equals, and hashCode
586Type Safety: Enums vs Constants
587Declaring Fields in Enums
588Enum Constructors: Syntax and Restrictions
589Initializing Enum Constants with Constructor Arguments
590Adding Getter Methods to Enums
591Instance Methods in Enums
592Abstract Methods in Enums
593Constant-Specific Method Implementations
594Static Fields and Methods in Enums
595Multiple Fields and Complex Enum State
596Enums vs Classes: When to Use Fields and Methods
597Introduction to EnumSet: A Specialized Set for Enums
598Creating EnumSets: Factory Methods Overview
599EnumSet Performance: Bit Vector Implementation
600EnumSet Operations: Add, Remove, and Bulk Modifications
601Introduction to EnumMap: A Specialized Map for Enum Keys
602Creating and Using EnumMap
603EnumMap Performance: Array-Based Implementation
604EnumMap Iteration Order and Completeness
605Practical Use Cases: State Machines and Configuration
606The ordinal() Method: Zero-Based Enum Indexing
607Why ordinal() Should Be Avoided in Business Logic
608The name() Method: Getting the Enum Constant's Identifier
609name() vs toString(): When to Override toString()
610Using Enums in switch Statements: Traditional Syntax
611Switch Expressions with Enums (Java 14+)
612Exhaustive Switch Coverage and Compiler Warnings
613Pattern Matching with Enums in Switch (Java 21+)

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Lesson 595 of 2,870·14. EnumerationsPro lesson

Multiple Fields and Complex Enum State

Build enums with multiple fields and constructors to model rich domain concepts with structured data.

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