Count word occurrences in a string

    
 
import org.apache.commons.lang.StringUtils;

public class Main {
  public static void main(String[] args) {
    String source = "this is a test";
    String word = "is";

    int wordFound = StringUtils.countMatches(source, word);

    System.out.println(wordFound);
  }
}

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Count word occurrences in a string : String « Data Type « Java

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