need guidance

**khalidchaaran** · June 29th, 2022, 04:42 AM

I want to implement Iterator class in similar way as DijkstraClosestFirstIterator.calss available in package org.jgrapht.alg.shortestpath; with identical imports.
imports are available i n referenced Libraries.

    private final Graph graph;
    private final V source; 
             (V cannot be resolved)
    private final double radius;
    private final Map>> seen;
                          (Syntax error on token Map>>)
    private AddressableHeap> heap;
             (Syntax error on token AddressableHeap>)

These may refer to very basic knowledge of the language, however i am stuck. I tried to find V.class in jgrapht but unable to find any.

**Norm** · June 29th, 2022, 05:47 AM

A java source file needs to have a class statement with the name of the class:

   public class TheClassNameHere {
     // class's contents here
   }  // end of class

If there are references to external classes, there may need to be import statements for those classes.

Syntax error on token Map>>

Remove the >>
Add the type arguments for generic class Map<K,V> replacing K with the class of the key and V with the class of the value.

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