import java.util.regex.*;
import java.io.*;

public class IndicesOfGroupOfText{
	public static void main(String[] args){
		CharSequence inputStr = "abbabcd";
		String patternStr = "(a(b*))+(c*)";
		
		// Compile and use regular expression
		Pattern pattern = Pattern.compile(patternStr);
		Matcher matcher = pattern.matcher(inputStr);
		boolean matchFound = matcher.find();
		System.out.println("Complete string/text: " + inputStr);
		int a = 0;
		if(matchFound){
			// Get all groups for this match
			for(int i=0; i<=matcher.groupCount(); i++){
				a = a + 1;
				// Get the group's captured text
				String groupStr = matcher.group(i);
				System.out.println(groupStr);
		
				// Get the group's indices
				int groupStart = matcher.start(i);
				int groupEnd = matcher.end(i);
				System.out.println("Last index of the group of \'" + groupStr + "\': " + groupStart + " " + (groupEnd-1));
		
				// groupStr is equivalent to
				inputStr.subSequence(groupStart, groupEnd);
			}
		}
		if (a == 0){
			System.out.println("No match found.");
			System.exit(0);
		}
	}
}