UNumber Class In Java

Help on Using UNumber Class in Java Library. I am new to this. I can hardly find any help on the internet on UNumber. I first came across it in my programming class.

Typical Question was for once to create javascript programme using the UNumber class , request users to enter series of numbers until empty line is entered. the programme will then output the sum of the numbers, total numbers entered and the average of the numbers

Java isn’t the same as JavaScript, I’ve changed the topic of your post. I’m assuming UNumberis a class that you have to expand out for your assignment, not a builtin, ie you have been given the skeleton of a program, the class is called UNumber, fill in the methods