Write a Java program called WordMatch.java. This program takes four command-line arguments. For example: java WordMatch in1.txt out1.txt in2.txt out2.txt 1. The ?rst is the name of a text ?le that contains the names of AT LEAST TWO text ?les (each per line)  from which the words are to be read to build the lexicon (The argument is to specify the input ?les). 2. The second is the name of a text ?le to which the words in the lexicon are to be written (The argument is to specify the ?le containing the words and the neighbors in the lexicon). 3. The third is the name of a text ?le that contains ONLY ONE matching pattern (The argument is to specify the file containing the matching pattern). 4. The fourth is the name of the text ?le that contains the result of the matching for the given pattern (The argument speci?es the ?le containing the output). For this version, the ef?ciency with which the program performs various operations is a major concern, i.e. the sooner the program performs (correctly), the better. For example, the ?les read in can be quite long and the lexicon of words can grow to be quite lengthy. Time to insert the words will be critical here and you will need to carefully consider which algorithms and data structures you use. You can use any text ?les for input to this program. A good source of long text ?les is at the Gutenberg project (www.gutenberg.com) which is a project aimed to put into electronic form older literary works that are in the public domain. The extract from Jane Austen’s book Pride and Prejudice used as the sample text ?le above was sourced from this web site. You should choose ?les of lengths suitable for providing good information about the ef?ciency of your program. A selection of test ?les have been posted on LMS for your ef?ciency testing. You can consider additional test ?les if you wish. As expected, the de?nition of a word, and the content of a query’s result and display of this result are exactly the same as what described in Assignment Part 1. All the Java ?les must be submitted. The program will be marked on correctness and ef?ciency. Bad coding style and documentation may have up 5 marks deducted. Task 2 (CSE5ALG students only) Consider the B-trees of order M . Assume that we have the following result, which we will refer to as Lemma 1. ?.Lemma 1: The barest B-tree of height H contains N = 2K H ? 1 elements, where K = ?M 2 Determine the height’s upper bound for a B-tree of order 23 which has 10, 000, 000 = 107 elements. You must give an integer value as the height’s upper bound for the B-tree. You are not allowed to use the result given in the lecture regarding the upper bound for Btree’s height. Instead, you must work out the answer using Lemma 1 above. Note: The total mark for Part 2 will be 100 for CSE2ALG students and 125 (100 for Task 1 and 25 for Task 2) for CSE5ALG students. The percentage of contribution to the ?nal will be the same, i.e. 20%. In your solution to Task 2, as well as in every Java class, you must include your student ID and name, and the subject code. How to submit your solution to Task 2: Your solution should be a PDF ?le named Task2.pdf, and be submitted using the same command submit ALG, i.e. submit ALG Task2.pdf

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