Java API - Treemap - Treeset Project Use TreeMap and TreeSet in Java API to build text process software Concordance_1. Concordance_1 reads a text file and extracts all of the identifiers in the file, along with the number of occurrences and the line numbers on which the identifier appear. An identifier is defined as a string that begins with a letter (A-Z, a-z) and is followed by zero or more other characters that are a letter or a digit (0-9). Note that, if an identifier appears multiple times in a line, only one line number should be displayed, yet the number of occurrences should be counted multiple times.
The input of the concordance is a text file. The concordance outputs the information for each identifier line by line in the following format. For example, "apply" is an identifier. … apply occurs 6 times on line 1, 3, 7,12 …
In the part two of this project, each student builds another version of Concordance_2 with class HashMap and HashSet in Java API.
Run two versions of concordance on the same input file. Download text version of Alice's Adventures in Wonderland