public static void main(String[] args) throws BeliefBaseException {
    BeliefBase bb = new ABeliefStore(100, 4);
    bb.eval(0, "neighbour.age < 31");

    Console console = System.console();
    if (console == null) {
      System.err.println("No console.");
      System.exit(1);
    }
    while (true) {

      Pattern pattern = Pattern.compile(console.readLine("%nEnter your regex: "));

      Matcher matcher = pattern.matcher(console.readLine("Enter input string to search: "));

      boolean found = false;
      while (matcher.find()) {
        console.format(
            "I found the text" + " \"%s\" starting at " + "index %d and ending at index %d.%n",
            matcher.group(), matcher.start(), matcher.end());
        found = true;
      }
      if (!found) {
        console.format("No match found.%n");
      }
    }
  }
public static void main(String[] args) throws BeliefBaseException {
    BeliefBase bb = new ABeliefStore(100, 4);
    bb.eval(0, "neighbour.age < 31");

    Console console = System.console();
    if (console == null) {
      System.err.println("No console.");
      System.exit(1);
    }
    while (true) {

      Pattern pattern = Pattern.compile(console.readLine("%nEnter your regex: "));

      Matcher matcher = pattern.matcher(console.readLine("Enter input string to search: "));

      boolean found = false;
      while (matcher.find()) {
        console.format(
            "I found the text" + " \"%s\" starting at " + "index %d and ending at index %d.%n",
            matcher.group(), matcher.start(), matcher.end());
        found = true;
      }
      if (!found) {
        console.format("No match found.%n");
      }
    }
  }
public static void main ( String [ ] args ) throws BeliefBaseException { BeliefBase bb = new ABeliefStore ( 100 , 4 ) ; bb . eval ( 0 , "neighbour.age < 31" ) ; Console console = System . console ( ) ; if ( console == null ) { System . err . println ( "No console." ) ; System . exit ( 1 ) ; } while ( true ) { Pattern pattern = Pattern . compile ( console . readLine ( "%nEnter your regex: " ) ) ; Matcher matcher = pattern . matcher ( console . readLine ( "Enter input string to search: " ) ) ; boolean found = false ; while ( matcher . find ( ) ) { console . format ( "I found the text" + " \"%s\" starting at " + "index %d and ending at index %d.%n" , matcher . group ( ) , matcher . start ( ) , matcher . end ( ) ) ; found = true ; } if ( ! found ) { console . format ( "No match found.%n" ) ; } } }
Sample program to test pattern matching.

@param args command line arguments
@throws BeliefBaseException thrown if something went wrong
Sample program to test pattern matching .