String search on receive a character

  
package kws.algo.string;

import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;

/**
 * Created by IntelliJ IDEA.
 * User: uchan
 * Date: 3/25/12
 * Time: 12:56 PM
 * To change this template use File | Settings | File Templates.
 */
public class SignalReceiver {
    
    private LinkedList signalReceived = new LinkedList();
    private char[] pattern;
    
    public void onReceive(char c){
        signalReceived.addLast(c);
        int j = 1;
        if(signalReceived.size() >= pattern.length) {
            for(int i = pattern.length - 1; i > 0; i--){
                if(!signalReceived.get(signalReceived.size() - j++).equals(pattern[i])){
                    return;
                }
            }
            System.out.println("Found the pattern at " + (signalReceived.size() - pattern.length));
        }
    }

    public void setPattern(char[] pattern) {
        this.pattern = pattern;
    }
    
    public void setReversePattern(char[] pattern) {
        setPattern(reverse(pattern));
    }

    private char[] reverse(char[] pattern) {
        char[] reversePattern = new char[pattern.length];
        for (int i = 0; i < pattern.length; i++) {
            reversePattern[pattern.length - 1- i] = pattern[i];                                                        
        }
        return  reversePattern;
    }

    public static void main(String[] args) {
        SignalReceiver signalReceiver = new SignalReceiver();
        signalReceiver.setPattern("msc".toCharArray());
//        signalReceiver.setReversePattern("ccs".toCharArray());

        signalReceiver.onReceive('a'); //0
        signalReceiver.onReceive('m'); //1 <----
        signalReceiver.onReceive('s'); //2 >----
        signalReceiver.onReceive('c'); //3
        signalReceiver.onReceive('c'); //4
        signalReceiver.onReceive('m'); //5 <----
        signalReceiver.onReceive('s'); //6
        signalReceiver.onReceive('c'); //7
        signalReceiver.onReceive('a'); //8
        signalReceiver.onReceive('a'); //9

    }

}