Computer program 420-P26-GG Programming Object I date: Wednesday, May 19th before 11:55 pm - no delay allowed Learning objec�ves • Apply the basic concepts of object-oriented programming to concrete...

A small Java project to do. before the end of tommorow


Computer program 420-P26-GG Programming Object I date: Wednesday, May 19th before 11:55 pm - no delay allowed Learning objec�ves • Apply the basic concepts of object-oriented programming to concrete problems • Apply the concept of encapsula�on • Apply the overall concept of classes • Apply good excep�on handling • Use Java u�li�es • Implement interfaces • Use file read / write • Use java.nio.file classes Direct access to the defini�on of a word from the dic�onary on a file text type Note: This is an educa�onal project, to put certain concepts into prac�ce and keep everything fairly simple. Respect what is asked here to earn points, even if you think doing otherwise would be be�er. In a professional implementa�on, we probably wouldn't do things this way As input, we have a text file " defini�ons.txt " whose one-line format is: word: defini�on For example: Java: very nice language object programming The aim of this exercise is to consult the dic�onary. To make it easier to find words in the dic�onary, we are going to create a direct access file " defini�ons.txt.sbc " from the "file defini�ons.txt " . The “file defini�ons.txt.sbc ”only contains the defini�ons (no end of line, etc.). We are also going to create an index table whose content of an entry is: word displacement length where: Project 3 420-P26-GG Page 1 of 5 Project 3 to be submi�ed before Wednesday, May 19, 11:55 p.m. No delay accepted Delivery • word is the search word • displacement is the byte where the defini�on of the word in the direct access file “ defini�ons.txt.sbc ” • length is the number of bytes in the defini�on. For example: Java 53 40 Means that the defini�on of the word " Java " is at byte 53 with a length of 40 bytes in the file " defini�ons.txt.sbc " To perform this job you must use at least the following classes (all instance variables are private, there is noclass public variables)in a set of classes ( "package") project3: ____________________________________________________________________ theclass Entree that contains: • theprivate instance word variables, displacement and length • A constructor which ini�alizes the instance variables using values received as arguments • Amethod toString () which allows to display an object of type Input • A String readDefini�on (SeekableByteChannel sbc) method which returns the defini�on of the current entry (you must posi�on yourself in the direct access file). • Amethod getMot () which returns the word of the current entry. Add the other " ge�ers ", there should be no " se�ers ". ____________________________________________________________________ In ansub- package index_v1 (therefore project3.index_v1 ), theclass Index which contains: • A private instance variable tableIndex of type HasMap declared as follows: private HashMap tableIndex = new HashMap (); word object the L'Entree is used as a key in the HashMap. • A constructor which only displays: " ====== index with HashMap =========" • Anmethod addEntry that adds e to tableIndex. You should put the word used as the key in uppercase in the index, but not modify the word read in the file or at the console in the object e Project 3 420-P26-GG Page 2 of 5 • Anmethod EntersearchEntry (String word) which returns the entry corresponding to the word word if it exists in the table and returns null if no entry contains the word word. The breakage does not ma�er. • Do not use