Write a static method named iterator to Dictionary with Counts. The method shoul

Question

Write a static method named iterator to Dictionary with Counts. The method should accept one parameter. An Iterator for objects of generic type T. It should return an Array Dictionary object that has Keys of type T, and values of type Integer. The dictionary should have a Key toe each object in the iterator, and the the value associated with the Key should be the number of times that the value is present in the iterator. Assume that you have a working version of Array Dictionary to use and that it implements the Dictionary lnterface.

Explanation / Answer

import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.util.HashMap; import java.util.Hashtable; import java.util.Map; public class CountWords_v1 { public static void main(String[] args) throws IOException { BufferedReader reader = new BufferedReader(new FileReader(new File("input.txt"))); String inputLine = null; Map dictionary = new HashMap(); //Map dictionary = new Hashtable(); while((inputLine = reader.readLine()) != null) { // Split the input line. String[] words = inputLine.split("\s+"); // Ignore empty lines. if(inputLine.equals("")) continue; for(String word: words) { // Remove any commas and dots. word = word.replace(".", ""); word = word.replace(",", ""); if(dictionary.containsKey(word)) { Integer val = dictionary.get(word); dictionary.put(word, val + 1); } else dictionary.put(word, 1); } } // Printing all words stored in the map. for(String key: dictionary.keySet()) System.out.println(key + ": " + dictionary.get(key)); reader.close(); } }

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