A circular doubly-linked list .(a) In a circular doubly-linked list, there is no front or end; the...

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A circular doubly-linked list
.(a) In a circular doubly-linked list, there is no front or end;the nodes form a full circle. Instead of keeping track of the nodeat the front, we keep track of a current node instead. Write aclass for a circular doubly-linked list using the attached Jobclass as your node objects. It should have:
â€¢ A private instance variable for the current node
â€¢ A getCurrent() method that returns a reference to the currentnode â€¢ A method to insert a node before the current node
â€¢ A method to delete the current node
â€¢ A method to advance the current node to the next node in thelist â€¢ A method to check whether the list is empty
â€¢ A method to print the list, starting with the current node
.(b) Write tests for these methods. Why did you choose thesetest cases? (Think about any edge cases as you do this.) Did youget what you expected?

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Online Java CompilerCode Compile Run and Debug java program onlineWrite your code in this editor and press Run button to executeit class job which is actually a node in cllcircular linkedlistclass jobpublic int datapublic job nextpublic job prevpublic jobint datathisdatadatathisnextnullthisprevnull circular linked list classclass circularlinkedlistprivate job current constructorpublic circularlinkedlistint datathiscurrent new jobdata return current See Answer

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