Associated values with HashMap

Hello,
All this corresponds to a program that should provide the shortest path between two vertices of a weighted graph.
My structure is this:

Code:

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private HashMap <Summit, trst <arc>> graph;

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So I have a class that contains the Summit:

Code:

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private String nm;
        private int plusCourt; / / Evaluation Associate at Summit

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And a class Arc:

Code:

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private Summit arr;
        private int wg;

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I created all vertices and all arcs. I entered the hashmap for each vertex the arcs involved. All this works wonderfully! Now I want to change the attribute plusCourt for all vertices contained in the hashmap.

Code:

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for(S Summit: graph.keySet()){
                                               
                        if(s.getName()== Departure)
                        {
                                sommetDepart = s;
s.setPlusCourt(0);
                               
                        }
                        else
                        {
                                s.setPlusCourt(3255);       
                        }
                }

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And in fact, after running this code, as I travel all the keys to display the value, I have only null?!? Logically if I change a key it should keep its value in the associated hashmap? Thanks in advance.

Hello,
Just have a look at the code below, this will describe a function and I think you are interested in this.

Code:

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if(s.getName()== Departure)

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No comparison == on strings. Your "null" where you have specifically?

Hello,
Even I am trying a code something like this. In fact I put this bit of code before and after treatment:

Code:

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TreeSet <arc> t;
                for(S Summit: graph.keySet()){
                                       
                                       
                        t = graph.get(s);
System.out.System.out.println(t);
                }

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It appears that everything is correct before and after I display with null.

Hey,
Here is my modified code, have a look and if I am wrong somewhere then you can correct me.

Code:

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for(S Summit: lesKey){
                        Summit tsm = s;
TreeSet <arc> tmpTree = graph.get(s);
                       
                        if(s.getName().equals(Departure))
                        {
                                sommetDepart = s;
s.setPlusCourt(0);
graph.remove(tsm);
graph.could(s, tmpTree);
                               
                        }
                        else
                        {
                                s.setPlusCourt(3000);
graph.remove(tsm);
graph.could(s, tmpTree);
                        }
                }

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Hi,
Okay, you can add the following to your code and see how it is compiled.

Code:

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HashMap <Summit, TreeSet <arc>> mtp = graph;
Set <VERTEX> lsky = mtp.keySet();

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This is because AC reference the same objects in memory? You will have to create a new object again. Do, this and see if the program runs perfectly.

Hello,
Ok, I have modified my code and this is what I have with me now.

Code:

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TreeSet <arc> t = graph.get(sommetDepart);       
               
                for(Arc: t){
                       
                        if(sommetDepart.getPlusCourt()+ a.getPoids()<a.getArrivee().getPlusCourt()){                                       
                                a.getArrivee().splcrt(sommetDepart.getPlusCourt()+ a.getPoids());
                        }
                }

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