import java.util.regex.Pattern;
import org.pureprogrammer.Utils;

public class RegEx2 {

	public static void main(String[] args) {
		final String s = "Four score and seven years ago...";
		System.out.println("Replace First 1: " + Pattern.compile("\\.\\.\\.").matcher(s).replaceFirst("!!!"));
		System.out.println("Replace First 2: " + Pattern.compile("\\b...\\b").matcher(s).replaceFirst("???"));
		System.out.println("Replace First 3: " + Pattern.compile("b.d").matcher(s).replaceFirst("???"));
		System.out.println("Replace First 4: " + Pattern.compile("(\\w+) (\\w+)").matcher(s).replaceFirst("$2 $1"));

		System.out.println("Replace All 1: " + Pattern.compile("\\b...\\b").matcher(s).replaceAll("???"));
		System.out.println("Replace All 2: " + Pattern.compile("(\\w+) (\\w+)").matcher(s).replaceAll("$2 $1"));
	}
}