import java.util.regex.Pattern; import java.util.regex.Matcher; public class Main { public static void main(String[] args) { Pattern pattern = Pattern.compile("Hello"); Matcher matcher1 = pattern.matcher("Hello World"); Matcher matcher2 = pattern.matcher("Say Hello World"); System.out.println(matcher1.lookingAt()); System.out.println(matcher2.lookingAt()); } }