Why did you have 5 referencenced data types ?
Java Supports 5 referenced data types , They Are
i-Array
ii-Class
iii-Interface
iv-Enum
V-Annotation
For storing multiple as one group by using Single Name
By default a pdt variable can store only one value at a time, but in project we must store multiple values at a time . in this we want to RDTS
For Storing multiple values of same type we must array .
For storing multiple values of different type we must use class .
For Storing multiple constant values with fixed names we must use enum
interface and annotation are RDTS but they are not used for declaring multiple methods of an object to be implemented by sub type programmers .
