//ProgramArrayList.java
import java.util.*;
import static java.util.stream.Collectors.toMap;
public class ProgramArrayList {
/**
* function to find third most frequent letter
* @param para
* @return
*/
public static String thirdMostFrequentValue(ArrayList<String> para) {
// map for storing the word and count
HashMap<String, Integer> hashMap = new HashMap<>();
for (String s : para) {
// splitting para by space
String temp[] = s.trim().split(" ");
// adding to hashmap
for (String word : temp) {
if (hashMap.containsKey(word)) {
hashMap.put(word, hashMap.get(word) + 1);
} else {
hashMap.put(word, 1);
}
}
}
// sorting the haspmap by descending order
HashMap<String, Integer> sortedHashMap = hashMap
.entrySet()
.stream()
.sorted(Collections.reverseOrder(Map.Entry.comparingByValue()))
.collect(
toMap(e -> e.getKey(), e -> e.getValue(), (e1, e2) -> e2,
LinkedHashMap::new));
Object keyValues[] = sortedHashMap.keySet().toArray();
if (keyValues.length >= 3) {
return (String) keyValues[2];
}
return null;
}
/**
* function to print line with third most frequent letter
* @param para
*/
public static void printSentenceWithWord(ArrayList<String> para){
// calling above function for finding the third most frequent letter
String thirdFrequentWord = thirdMostFrequentValue(para);
if(thirdFrequentWord == null){
System.out.println("Third Frequent Word Not Found");
return;
}
System.out.println("Third Frequent Word: "+thirdFrequentWord+"\n");
System.out.println("Printing sentence that contains Third Most Frequent Letter.\n");
// looping through paragraphs
for (String s: para){
String temp[] = s.split("\n");
for(String sentence: temp){
if(sentence.contains(thirdFrequentWord))
System.out.println(sentence);
}
}
}
public static void main(String[] args) {
ArrayList<String> paragraphs = new ArrayList<>();
paragraphs.add("This is First para");
paragraphs.add("This is Second para");
paragraphs.add("Not a good para");
paragraphs.add("Test code");
printSentenceWithWord(paragraphs);
}
}
//OUT
Please do let me know if u have any concern...
using java find the third most frequent word in a paragraph in an array list. also...
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