import java.util.regex.Matcher; 
import java.util.regex.Pattern; 
  
// Class definition for WordOccurrencesExample 
public class WordOccurrencesExample { 
    // Main method 
    public static void main(String[] args) { 
        // Create a sample text 
        String text = "Java is a versatile programming language. Java is widely used in software development."; 
  
        // Define the word to find occurrences 
        String wordToFind = "Java"; 
  
        // Create a regex pattern using the word 
        Pattern pattern = Pattern.compile("\\b" + wordToFind + "\\b", Pattern.CASE_INSENSITIVE); 
  
        // Create a matcher for the text 
        Matcher matcher = pattern.matcher(text); 
  
        // Find and display every occurrence of the word 
        System.out.println("Occurrences of the word '" + wordToFind + "':"); 
        while (matcher.find()) { 
            System.out.println("Found at index " + matcher.start() + " - " + matcher.group()); 
        } 
    } 
}