A Counter solution to Java 5 Enum in Java 1.4

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Tutorial: A Counter solution to Java 5 Enum in Java 1.4

Java 5 has a very good feature: enum. The enum keyword can be used to create C++ like enums.

Tutorial Details:

The enum created in Java 5 are a particular type of class whose instances are only those objects which are members of that enum. Each member of the enum is an instance of that enum class. The super class of all enum objects is java.lang.Enum and enums can not be extended. Java 5 also supports methods to be contained in an enum.
For example:
public enum MeasurementType {
Length, Mass, Time;
}

The following code works perfectly fine for the above enum and the output is shown below:
System.out.println(MeasurementType.Length instanceof MeasurementType);
System.out.println(MeasurementType.Length);
Output:
true
Length

Now, there are many situations where we need to use enums and the above stated features of enums but we can not use Java 5 features because of some requirements of the project (like many projects are created to run on JDK 1.3/1.4 because client environment does not support JDK 5 or some other reason like that). If such a case arises then many developers feel upset and devise their own method to tackle the problem at hand. Sometimes, there are situations where we have written a library using Java 5 features like enums but we need to use that library in a legacy project and port the whole code to Java 2. If we are using annotations, then we need to discard all the annotations and enums.

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