Please help me write this code in java, I have attached the following additional codes that are requried:

CircularArrayQueue.java : http://www.csd.uwo.ca/courses/CS1027b/code/CircularArrayQueue.java

QueueADT.java :

http://www.csd.uwo.ca/courses/CS1027b/code/QueueADT.java

EmptyCollectionException :

http://www.csd.uwo.ca/courses/CS1027b/code/EmptyCollectionException.java

TestCAQ.java :

https://www.csd.uwo.ca/Courses/CS1027a/labs/lab6/TestCAQ.java

Exercise1 e Download circularArrayQueue.java, QueueAD2.java and EmptyCollectionException.java from the sample code page and fill in the missing code in the methods. The code for the helper method expandcapacity is given; note that it is different from the expandCapacity of the regular array implementations that we have seen for the Stack ADT and Queue ADT o first is similar to dequeue, but doesn't remove the element isEmpty and size are trivial o for tostring, setting up the string is similar in concept to the tostring method in Arraystack.java, which was similar to the following: public String tostring) String result- for int i-o ;