java print string gives pointer number

Question

I'm working on a special pathfinding system in java, which needs to print it's path at one point. It's far from done but I ran into a problem. When I run my code it instead prints a pointer towards an string rather then the string itself. Here is the code:

public class node {
    int optionnum;
    node[] options;
    String[] dirrections; 
    String[] route; 
    boolean[] visited; 

    public node(){
        options= new node[4];
        dirrections= new String[4];
        route= new String[50];
        for (int i=0;i<50;i++){
            route[i]="";
        }
        visited= new boolean[50];
    }
    public void revmdp(int num){

        visited[num]=true;
        for(int i=0;i<optionnum;i++){
            System.out.println(options[i].route[0]); //how can this be a pointer?
            options[i].revmdp(dirrections[i],num);
    }
public void revmdp(String nroute, int num){
    //System.out.println(route[0]+dirrections[0]);
    if (!visited[num]||nroute.length()<route[num].length()){
        route[num]=nroute;
        visited[num]=true;
        for(int i=0;i<optionnum;i++){
            options[i].revmdp(route+dirrections[i],num);
        }
    }
}
  }

output looks like this

[Ljava.lang.String;@2d66a22b3;

As you can see in the constructor of path I already set the path towards the string "" (empty string). As the string is not yet changed any futher at moment this code is called I would expect it to return "" however it instead gives these weird string pointers. Anybody know what's up?

Note I have already tried to call route[0][0] but java won't allow that.

Answer 1

Update 3: I found it.

options[i].revmdp(route+dirrections[i],num);

Here you are doing string concatenation on an array and a String. This causes to set route[num] in the level of recursion to this concat result.

Answer 2

Each Java class inerhits from the class Object, which implements the default toString() method. The Source code of the default toString() Method looks like :

public String toString() {

        return getClass().getName() + "@" + Integer.toHexString(hashCode());

    }

If you do not override the default toString() method, the method above is called.