Print all key/value pairs in a Java ConcurrentHashMap

Question

I am trying to simply print all key/value pair(s) in a ConcurrentHashMap.

I found this code online that I thought would do it, but it seems to be getting information ab

Answer 1

  //best and simple way to show keys and values

    //initialize map
    Map map = new HashMap();

   //Add some values
    map.put(1, "Hi");
    map.put(2, "Hello");

    // iterate map using entryset in for loop
    for(Entry entry : map.entrySet())
    {   //print keys and values
         System.out.println(entry.getKey() + " : " +entry.getValue());
    }

   //Result : 
    1 : Hi
    2 : Hello