ashpriom/Regex Pattern Matching : rosettacode.org

## Regex Pattern Matching : rosettacode.org

      
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              Regex Pattern Matching : rosettacode.org
            
          
    import java.util.regex.Pattern;
public class CountSubstring {
  public static int countSubstring(String subStr, String str){
  // the result of split() will contain one more element than the delimiter
  // the “-1” second argument makes it not discard trailing empty strings
  return str.split(Pattern.quote(subStr), -1).length - 1;
  }
public static void main(String[] args){
  System.out.println(countSubstring(“th”, “the three truths”));
  System.out.println(countSubstring(“abab”, “ababababab”));
  System.out.println(countSubstring(“a*b”, “abaabba*bbaba*bbab”));
  }
  }