style: include PATH_TRAVERSAL_IN (#5148)

spotbugs-exclude.xml

@@ -286,7 +286,4 @@
     <Match>
         <Bug pattern="HARD_CODE_KEY" />
     </Match>
-    <Match>
-        <Bug pattern="PATH_TRAVERSAL_IN" />
-    </Match>
 </FindBugsFilter>

src/main/java/com/thealgorithms/others/TopKWords.java

@@ -1,95 +0,0 @@
-package com.thealgorithms.others;
-
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Comparator;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Scanner;
-
-/* display the most frequent K words in the file and the times it appear
-in the file – shown in order (ignore case and periods) */
-public final class TopKWords {
-    private TopKWords() {
-    }
-
-    static class CountWords {
-
-        private String fileName;
-
-        CountWords(String fileName) {
-            this.fileName = fileName;
-        }
-
-        public Map<String, Integer> getDictionary() {
-            Map<String, Integer> dictionary = new HashMap<>();
-            FileInputStream fis = null;
-
-            try {
-                fis = new FileInputStream(fileName); // open the file
-                int in = 0;
-                String s = ""; // init a empty word
-                in = fis.read(); // read one character
-
-                while (-1 != in) {
-                    if (Character.isLetter((char) in)) {
-                        s += (char) in; // if get a letter, append to s
-                    } else {
-                        // this branch means an entire word has just been read
-                        if (s.length() > 0) {
-                            // see whether word exists or not
-                            if (dictionary.containsKey(s)) {
-                                // if exist, count++
-                                dictionary.put(s, dictionary.get(s) + 1);
-                            } else {
-                                // if not exist, initiate count of this word with 1
-                                dictionary.put(s, 1);
-                            }
-                        }
-                        s = ""; // reInit a empty word
-                    }
-                    in = fis.read();
-                }
-                return dictionary;
-            } catch (IOException e) {
-                e.printStackTrace();
-            } finally {
-                try {
-                    // you always have to close the I/O streams
-                    if (fis != null) {
-                        fis.close();
-                    }
-                } catch (IOException e) {
-                    e.printStackTrace();
-                }
-            }
-            return null;
-        }
-    }
-
-    public static void main(String[] args) {
-        // you can replace the filePath with yours
-        CountWords cw = new CountWords("/Users/lisanaaa/Desktop/words.txt");
-        Map<String, Integer> dictionary = cw.getDictionary(); // get the words dictionary: {word: frequency}
-
-        // we change the map to list for convenient sort
-        List<Map.Entry<String, Integer>> list = new ArrayList<>(dictionary.entrySet());
-
-        // sort by lambda valueComparator
-        list.sort(Comparator.comparing(m -> m.getValue()));
-
-        Scanner input = new Scanner(System.in);
-        int k = input.nextInt();
-        while (k > list.size()) {
-            System.out.println("Retype a number, your number is too large");
-            input = new Scanner(System.in);
-            k = input.nextInt();
-        }
-        for (int i = 0; i < k; i++) {
-            System.out.println(list.get(list.size() - i - 1));
-        }
-        input.close();
-    }
-}