java constants class vs enum
Enum compareTo The compareTo method compares the enum constants based on their. TestEnumclassgetEnumConstants calls values internally through reflection at least in my version - Oracles Java 7.
Pros of enum.
. You or your users cannot make the. Enum is a type. Take a look at javalangClassgetEnumConstants and.
You cant instantiate new options only pick from the ones already defined. Enums can define a class of named constants and offer type safety and keys in a. Enum clone compareTo equals finalize getDeclaringClass hashCode name ordinal toString valueOf.
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An enum can just like a class have attributes and methodsThe only difference is that enum constants are public static and final unchangeable. Enum in Java vs equals. Each enumeration in the enum basically represents an instance of a class.
Java extends keyword is used to indicate that a class is derived from another class or interface. But enum in android takes so much memory you should use intdef instead. For instance of memory.
In Java enum is a special Java type used to define collections of constants. Enum is better to use for type safety. Wrong values cannot be entered.
Enum in Java vs equals. In Java from 15 enums are represented using enum data type. More precisely a Java enum type is a special kind of Java class.
IMHO the only true advantages of enum over class for defining constants is that enums are automatically static singletons and are automatically final. Public enum Color White Red Blue Constants for something unique like. You can see that Direction is the name of an enum that has four.
Enum can be declared outside a class or inside a class but cannot be declared inside a method. There are some predefined methods in enum classes that are readily available for use. Enum s should be used for some range.
An enum can contain constants methods etc. There are some predefined methods in enum classes that are readily available for use. My feeling is that in purposes only for switch statement enum is superfluous in your case and it is better simply using final static int constants.
Class Math public float PI 314f. Refer to this answer for. More precisely a Java enum type is a special kind of Java class.
Switches are not even possible on Strings pre Java 7 In the enum class itself you use the short names. More precisely a Java enum type is a special kind of Java. Enums are like multiple-choice classes.
Java enums are more powerful than CC enums. Java Enum ordinal The ordinal method returns the position of an enum constant. In Java we can also add variables methods and.
In switches on the enum you dont use the class name. Difference between Enums and Classes.
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