This is an example of how to count the words of a String paragraph, using the org.apache.commons.lang3.StringUtils class. This class provides operations on String that are null safe. Counting the words of a paragraph implies that you should:
- Create a String that is a paragraph.
- Create a String word that is the word to search in the paragraph.
- Use the
countMatchesmethod ofStringUtilsmethod that counts the number of occurrences of one String in another.
Let’s take a look at the code snippet that follows:
package com.javacodegeeks.snippets.core;
import org.apache.commons.lang3.StringUtils;
public class WordCounter {
public static void main(String[] args) {
// String with our paragraph
String paragraph = "Java Code Geeks (JCGs) is an independent online community focused on creating the"
+ "ultimate Java-to-Java developers resource center; targeted at the technical architect, technical"
+ "team lead (senior developer), project manager and junior developers alike. JCGs serve the Java, "
+ "Scala, Android, SOA, Agile and Telecom communities with daily news written by domain experts, "
+ "articles, tutorials, reviews, announcements, code snippets and open source projects.";
// Declare the word you want to search
String string = "Java";
// Count word repetitions
int counter = StringUtils.countMatches(paragraph, string);
// Print the result
System.out.println("Word <" + string + "> appeared " + counter + " times in the paragraph.");
}
}
Output:
Word <Java> appeared 4 times in the paragraph.
This was an example of a word counter in Java.
