Enumerations included in JDK 5. An enumeration is a list of named constants. It is similar to final variables. • Enum in java is a data type that contains fixed set of constants. • An enumeration defines a class type in Java. By making enumerations into classes, so it can have constructors, methods, and instance variables. • An enumeration is created using the enum keyword. Ex: enum Apple { Jonathan, GoldenDel, RedDel, Winesap, Cortland } • The identifiers Jonathan, GoldenDel, and so on, are called enumeration constants. • Each is implicitly declared as a public, static final member of Apple. • Enumeration variable can be created like other primitive variable. It does not use the new for creating object. Ex:Apple ap; Ap is of type Apple, the only values that it can be assigned (or can contain) are those defined by the enumeration. For example, this assigns: ap = Apple.RedDel; implement code to given statement

Enumerations included in JDK 5. An enumeration is a list of named constants. It is similar to final variables. • Enum in java is a data type that contains fixed set of constants. • An enumeration defines a class type in Java. By making enumerations into classes, so it can have constructors, methods, and instance variables. • An enumeration is created using the enum keyword. Ex: enum Apple { Jonathan, GoldenDel, RedDel, Winesap, Cortland } • The identifiers Jonathan, GoldenDel, and so on, are called enumeration constants. • Each is implicitly declared as a public, static final member of Apple. • Enumeration variable can be created like other primitive variable. It does not use the new for creating object. Ex:Apple ap; Ap is of type Apple, the only values that it can be assigned (or can contain) are those defined by the enumeration. For example, this assigns: ap = Apple.RedDel; implement code to given statement

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 1GZ

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