count the number of words in a string java
public static void main(String[] args) { //return the number of words in a string String example = "This is a good exercise"; int length = example.split(" ").length; System.out.println("The string is " + length + " words long."); }
count word in string no matter the delimiter java
public static void main(String[] args) { //Scanner object instantiation Scanner dude = new Scanner(System.in); //variable declaration String string1 = ""; int count = 0; boolean isWord = false; //user prompt and input System.out.println("Enter in your string"); string1 = dude.nextLine(); int endOfLine = string1.length()-1; char ch [] = string1.toCharArray(); for (int i = 0; i < string1.length(); i++) { if(Character.isLetter(ch[i]) && i != endOfLine) {//if character is letter and not end of line isWord = true; //it is part of a word } if (!Character.isLetter(ch[i]) && isWord) { //if character is not a letter, and previous //character is a letter i.e. non-letter is //preceded by character count++; //add to word count isWord = false; //get ready to detect new word } if (Character.isLetter(ch[i]) && i == endOfLine) { //if character is letter //and at end of line count++; //add to word count isWord = false; } } System.out.println("There are " +count+ " words"); }
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