count number of words in string using java

In this post, we will learn about count number of words in string using java

In below example we using split method to count number of words in a sentence.

If String have more than one space consecutively, then we need to replace with one string using below code

sentence.replaceAll("\\s+", " ").trim();

Syntax

properString.split(" ");

Example using split

public class CountWords {

	public static void main(String[] args) {

		try {
			String sentence = "    The pen    is mightier than the sword . ";
			String properString = sentence.replaceAll("\\s+", " ").trim();
			String[] split = properString.split(" ");
			System.out.println("The sentence have " + split.length + " words");

		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

Output

The sentence have 8 words

Example using StringTokenizer

import java.util.StringTokenizer;

public class CountWords {

	public static void main(String[] args) {
		try {
			String sentence = "    The pen    is mightier than the sword . ";
			StringTokenizer tokens = new StringTokenizer(sentence);
			System.out.println("The sentence have " + tokens.countTokens() + " words");

		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

Output

The sentence have 8 words

Github

https://github.com/rkumar9090/BeginnersBug/blob/master/BegineersBug/src/com/geeks/example/strings/CountWordsUsingSplit.java

https://github.com/rkumar9090/BeginnersBug/blob/master/BegineersBug/src/com/geeks/example/strings/CountWordsUsingTokenzier.java

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