Matcher.LookingAt method : Matcher « Regular Expressions « Java Tutorial

1. Java Tutorial
2. Regular Expressions
3. Matcher

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());

  }
}