Enumeration in Java Explained | Java Tutorial | Edureka

WHY DO WE NEED ENUMERATION? DIFFERENCES BETWEEN ENUM AND CLASS www.edureka.co WHAT IS ENUMERATION IN JAVA? PRACTICL EXAMPLES OF ENUM ADVANTAGES OF ENUM ENUM USECASE: ROCK PAPER SISSIOR GAME.

WHAT IS ENUMERATION? www.edureka.co

WHAT IS ENUMERATION? www.edureka.co Java Enums are classes that have a fixed set of constants or variables that do not tend to change. The enumeration in Java is achieved using the keyword enum. The Java enum Constants are static and final implicitly.

WHY DO WE NEED ENUMERATION? www.edureka.co

WHY DO WE NEED ENUMERATION? Thurs Fri SatMon Tue Wed Sun www.edureka.co

WHY DO WE NEED ENUMERATION? Thurs Fri Satenum week Mon Tue Wed Sun www.edureka.co

WHY DO WE NEED ENUMERATION? Contract Temporary Permanent www.edureka.co

WHY DO WE NEED ENUMERATION? Contract Temporary Permanentenum job www.edureka.co

switch (c) { case 1: one(); break; case 2: two(); break; case 3: three(); break; default: throw Exception; } www.edureka.co

private static int ONE = 1; private static int TWO = 2; private static int THREE = 3; switch (c) { case ONE: one(); break; case TWO: two(); break; case THREE: three(); break; default: throw Exception; } www.edureka.co

enum Action { ONE { @Override public void action() { } }, TWO { @Override public void action() { } }, THREE { @Override public void action() { } }, public abstract void action(); } Abstract Method www.edureka.co

enum Action {ONE, TWO, THREE} Action a = ... switch (a) { case ONE: one(); break; case TWO: two(); break; case THREE: three(); break; default: throw Exception; } www.edureka.co

DIFFERENCES BETWEEN CLASS AND ENUM www.edureka.co

DIFFERENCES BETWEEN CLASS AND ENUM Class Constants can be overridden Enum constants cannot be overridden www.edureka.co

Classes support the creation of Objects Enum cannot support the creation of objects DIFFERENCES BETWEEN CLASS AND ENUM www.edureka.co

Classes can extend other classes Enum cannot extend other classes DIFFERENCES BETWEEN CLASS AND ENUM www.edureka.co

Classes can implement Interface Enum can implement Interface DIFFERENCES BETWEEN CLASS AND ENUM www.edureka.co

SYNTAX FOR ENUM IN JAVA www.edureka.co enum syntax: enum edureka{constants}

PRACTICAL EXAMPLES OF ENUM www.edureka.co

ADVANTAGES OF ENUM www.edureka.co

Enum can implement Interfaces Enum has fields, methods and constructors Enum can be traversed. Enum is easily usable in Switch Cases. Enum in Java improves Type-Safety. ADVANTAGES OF ENUM www.edureka.co

ENUM USECASE: ROCK PAPER SISSORS GAME www.edureka.co

Enumeration in Java Explained | Java Tutorial | Edureka

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Enumeration in Java Explained | Java Tutorial | Edureka