BiteSizedChunks.comLearn one small thing at a time.

Course contentsShow

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+)

← Java

Lesson 588 of 2,870·14. EnumerationsPro lesson

Enum Constructors: Syntax and Restrictions

Understand how enum constructors work, why they must be private, and how they initialize each constant.

This lesson is for subscribers

You've completed the free preview. Subscribe to unlock every lesson in every course.

See pricing Back to course