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WordFrequency.java
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WordFrequency.java
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import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
/**
* Created by nano on 17.11.15.
*/
public class WordFrequency {
static BufferedReader bufferedReader;
public static void main(String[] args) throws IOException {
ArrayList<Integer> WordCount = new ArrayList<>();
ArrayList<String> Words = new ArrayList<>();
String bunchOfWords = "Read the file";
char[] charArray2 = bunchOfWords.toCharArray();
for(int i = 0; i < charArray2.length; i++){
System.out.println(charArray2[i]);
}
FileReader fileReader = new FileReader("/home/hepstev/Dokumente/RandomText");
bufferedReader = new BufferedReader(fileReader);
String fileLineOne = bufferedReader.readLine();
String fileLineTwo;
while ((fileLineTwo = bufferedReader.readLine()) != null) {
fileLineOne += fileLineTwo;
}
fileReader.close();
String[] keys = fileLineOne.split(" ");
String[] uniqueKeys;
int count = 0;
uniqueKeys = getUniqueKeys(keys);
for (String key : uniqueKeys) {
if (key == null || key.length() == 0) {
break;
}
for (String s : keys) {
if (key.equals(s)) {
count++;
}
}
WordCount.add(count);
Words.add(key);
count = 0;
}
for (int i = 0; i < WordCount.size() - 1; i++) {
for (int j = 0; j < WordCount.size() - 1; j++) {
String nn = Words.get(j);
String nn1 = Words.get(j+1);
int n = WordCount.get(j);
int n1 = WordCount.get(j + 1);
if (n > n1) {
WordCount.remove(j);
Words.remove(j);
WordCount.add(j, n1);
Words.add(j, nn1);
WordCount.remove(j + 1);
Words.remove(j+1);
WordCount.add(j + 1, n);
Words.add(j+1, nn);;
}
}
}
for (int i = WordCount.size()-1; i>0 ;i-- ){
int container = WordCount.get(i);
String MentionedWord = Words.get(i);
System.out.println(container+" "+MentionedWord);
}
}
private static String[] getUniqueKeys(String[] keys)
{
String[] uniqueKeys = new String[keys.length];
uniqueKeys[0] = keys[0];
int uniqueKeyIndex = 1;
boolean keyAlreadyExists = false;
for(int i=1; i<keys.length ; i++)
{
for(int j=0; j<=uniqueKeyIndex; j++)
{
if(keys[i].equals(uniqueKeys[j]))
{
keyAlreadyExists = true;
}
}
if(!keyAlreadyExists)
{
uniqueKeys[uniqueKeyIndex] = keys[i];
uniqueKeyIndex++;
}
keyAlreadyExists = false;
}
return uniqueKeys;
}
}