program code for counting the similarwrod in the sentences
public static int count(String word) {
if (word == null || word.isEmpty()) {
return 0;
}
int wordCount = 0;
boolean isWord = false;
int endOfLine = word.length() - 1;
char[] characters = word.toCharArray();
for (int i = 0; i < characters.length; i++) {
// if the char is a letter, word = true.
if (Character.isLetter(characters[i]) && i != endOfLine) {
isWord = true;
// if char isn't a letter and there have been letters before,
// counter goes up.
} else if (!Character.isLetter(characters[i]) && isWord) {
wordCount++;
isWord = false;
// last word of String; if it doesn't end with a non letter, it
// wouldn't count without this.
} else if (Character.isLetter(characters[i]) && i == endOfLine) {
wordCount++;
}
}
return wordCount;
}