[Solved] COMS 227 Miniassignment 2: Recursion

OverviewIn this assignment you will implement a few recursive methods. Most of these methods can be implemented iteratively, some of them more easily or more efficiently than a recursive solution; you will not receive credit for these problems if you submit an iterative solution! The purpose of this assignment is to give you practice writing recursive methods. Similarly, some of these methods are solved or mostly-solved by Java library methods (in particular toInt() and Integer.parseInt(), and pow() and Math.pow()); you will not receive credit for these problems if you submit a solution that simply calls an equivalent or very similar Java library method!AdviceBefore you write any code for a method, think about the bottom of the recursion (the base case) and how the problem shrinks with each recursive call. Most of these methods are simply an if statement (the base case) and a return statement with a recursive callisMatched() is somewhat more involvedso once you figure these two things out, your most of the way to a solutionMy codes not working!!Developing recursive methods can be hard, especially when youre used to thinking iteratively. If you are getting errors, a good idea is to take a simple, concrete example, and trace execution of your code by hand (as illustrated in section 6.2 of the text) to see if the code is doing what you want it to do. You might draw a call tree to see what your stack looks like as your program executes. You can also trace whats happening in the code by temporarily inserting println statements to check whether variables are getting updated in the way you expect. (Remember to remove the extra printlns when youre done!)Overall, the best way to trace through code with the debugger, as we practiced in Lab 6. Learn to use the debugger effectively, and it will be a lifelong friend.Always remember: one of the wonderful things about programming is that within the world of your own code, you have absolute, godlike power. If the code isnt doing what you want it to do, you can decide what you really want, and make it so. You are in complete control!(If you are not sure what you want the code to do, well, thats a different problem. Go back to theAdvice section.)Testing and the SpecCheckerA SpecChecker will posted shortly that will perform an assortment of functional tests. As long as you submit the assignment correctly, your score will be exactly the score reported by the specchecker.However, when you are debugging, it is much more helpful if you have a simpler test case of your own that reproduces the error you are seeing.Since no test code is being turned in, you are welcome to post your tests on Piazza for others to use and comment on.Documentation and styleSince this is a miniassignment, the grading is automated and in most cases we will not be reading your code. Therefore, there are no specific documentation and style requirements. However, writing a brief descriptive comment for each method will help you clarify what it is you are trying to do.If you have questionsFor questions, please see the Piazza Q & A pages and click on the folder miniassignment2. If you dont find your question answered, then create a new post with your question. Try to state the question or topic clearly in the title of your post, and attach the tag miniassignment2. But remember, do not post any source code for the classes that are to be turned in. It is fine to post source code for general Java examples that are not being turned in. (In the Piazza editor, use the button labeled pre to have Java code formatted the way you typed it.)If you have a question that absolutely cannot be asked without showing part of your source code, make the post private so that only the instructors and TAs can see it. Be sure you have stated a specific question; vague requests of the form read all my code and tell me whats wrong with it will generally be ignored.Of course, the instructors and TAs are always available to help you. See the Office Hours section of the syllabus to find a time that is convenient for you. We do our best to answer every question carefully, short of actually writing your code for you, but it would be unfair for the staff to fully review your assignment in detail before it is turned in.Any posts from the instructors on Piazza that are labeled Official Clarification are considered to be part of the spec, and you may lose points if you ignore them. Such posts will always be placed in the Announcements section of the course page in addition to the Q&A page. (We promise that no official clarifications will be posted within 24 hours of the due date.)What to turn inNote: You will need to complete the Academic Dishonesty policy questionnaire, found on the Homework page on Blackboard, before the submission link will be visible to you.Please submit, on Canvas, the zip file that is created by the SpecChecker. The file will be named SUBMIT THIS mini2.zip. and it will be located in the directory you selected when you ran the SpecChecker. It should contain one directory, mini2, which in turn contains one file, Mini2.java.Always LOOK in the zip file the file to check what you have submitted!Submit the zip file to Canvas using the Miniassignment2 submission link and verify that your submission was successful. If you are not sure how to do this, see the document Assignment Submission HOWTO which can be found in the Piazza pinned messages under Syllabus, office hours, useful links.We strongly recommend that you just submit the zip file created by the specchecker. If you mess something up and we have to run your code manually, you will receive at most half the points.We strongly recommend that you submit the zip file as created by the specchecker. If necessary for some reason, you can create a zip file yourself. The zip file must contain the directory mini2, which in turn should contain the file Mini2.java. You can accomplish this by zipping up the src directory of your project. The file must be a zip file, so be sure you are using the Windows or Mac zip utility, and not a third-party installation of WinRAR, 7-zip, or Winzip