import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MainClass {
public static void main(String args[]) {
Pattern p = Pattern.compile("Java");
String candidateString_1 = "Java is Java";
String candidateString_2 = "J2SE is Java";
String candidateString_3 = "J2SEisJava";
Matcher matcher = p.matcher(candidateString_1);
String msg = ":" + candidateString_1 + ": matches?: ";
System.out.println(msg + matcher.lookingAt());
matcher.reset(candidateString_2);
msg = ":" + candidateString_2 + ": matches?: ";
System.out.println(msg + matcher.lookingAt());
matcher.reset(candidateString_3);
msg = ":" + candidateString_3 + ": matches?: ";
System.out.println(msg + matcher.lookingAt());
}
}