java hashmap key iteration

Question

Is there any way to iterate through a java Hashmap and print out all the values for every key that is a part of the Hashmap?

Answer 1

Yes, you do this by getting the entrySet() of the map. For example:

Map map = new HashMap();

// ...

for (Map.Entry entry : map.entrySet()) {
    System.out.println("key=" + entry.getKey() + ", value=" + entry.getValue());
}

(Ofcourse, replace String and Object with the types that your particular Map has - the code above is just an example).