public class Navigation {

	  static String[] config= { "/test2", "TestServlet2", "/test", "TestServlet" };
	  static String requestUri= "/test2/";
	  
	public static void main(String[] args) {

		System.out.println("output" +new Navigation().getHandler(config, requestUri));
	}
	
	
	  public String getHandler(String[] config, String requestUri)
	  {
		  System.out.println("Request uri : "+requestUri);
	    int maxMatch=0; //store the length of the match that is the longest. 	    
	    String currentMatch=null; //the most accurate match string
	    
		  for (int i=0;i<config.length;i=i+2){
	    	//looping through the array. 
			// Coz, you know that every odd String in the array is the Handler String, 
			//you can just skip them
			  
		    	System.out.println("config[i] :"+config[i]);
	    
	      if ((requestUri.startsWith(config[i]))){ 	 
	    	if (config[i].length()>maxMatch){	   //compare the length of the 
	    											//previously matched String, if any 		    		
	    		maxMatch=config[i].length(); //if so, store it 
	    		System.out.println("max match... "+config[i+1]);
	    		currentMatch=config[i+1]; //Dont forget the String too
	    	}
	    	
	      }      
	      
	    }
		  
		if (currentMatch!=null){
			return currentMatch; //return it.
		}

	    return "/";
	  }
	

}