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javac++minimum-spanning-tree

Translating a code of c++ to Java without success

I am making a program to compute minimum cost routes, using minimal spanning trees. I did my implementation in c + + but I could not make a graphical interface to read the input file, so I decided to pass it to Java language and create the interface using Netbeans. Herés my code in c++:

Solution

  • I can't see where any of the following arrays are initialised:

    public static int matrizPesos[][];
public static char arbolMinimal[];
public static int distancia[];
public static int linkeoNodos[];

    but they are accessed which would be a possible cause for NullPointerException.