leetcode/String/No819.java at master · Programming-With-Love/leetcode · GitHub

Name: leetcode/String/No819.java at master · Programming-With-Love/leetcode · GitHub
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packageAlgorithm.leetcode.String;

importjava.util.HashMap;
importjava.util.Map;

/**
 *
 * Created by tujietg on Oct 29, 2019
 */
publicclassNo819 {
publicstaticStringmostCommonWord(Stringparagraph, String[] banned) {
Map<String, Integer> map = newHashMap<String, Integer>();
paragraph = paragraph.toLowerCase();
paragraph = paragraph.replaceAll("\\pP", " ");
String[] paragraphChar = paragraph.split(" ");
for (inti = 0; i < paragraphChar.length; i++) {
if (map.containsKey(paragraphChar[i])) {
inta = map.get(paragraphChar[i]);
map.remove(paragraphChar[i]);
map.put(paragraphChar[i], ++a);
 } else {
if (paragraphChar[i] != null && paragraphChar[i] != "") {
map.put(paragraphChar[i], 1);
 }
 }
 }

map.remove("");

for (inti = 0; i < banned.length; i++) {
if (map.containsKey(banned[i])) {
map.remove(banned[i]);
 }
 }

Stringend = "";
intmid = 0;
for (inti = 0; i < paragraphChar.length; i++) {
if (map.get(paragraphChar[i]) != null && map.get(paragraphChar[i]) > mid) {
mid = map.get(paragraphChar[i]);
end = paragraphChar[i];
 }
 }
returnend;
 }

publicstaticvoidmain(String[] args) {
String[] strArr = newString[] { "bob", "hit" };
System.out.println(mostCommonWord("Bob. hIt, baLl", strArr));

 }
}