Printing a java map Map – How? [duplicate]

I’m sure there’s some nice library that does this sort of thing already for you… But to just stick with the approach you’re already going with, Map#entrySet gives you a combined Object with the key and the value. So something like:
for (Map.Entry entry : map.entrySet()) {
System.out.println(entry.getKey() + “:” + entry.getValue().toString());
}

will do what you’re after.

If you’re using java 8, there’s also the new streaming approach.
map.forEach((key, value) -> System.out.println(key + “:” + value));

You may use Map.entrySet() method:
for (Map.Entry entry : objectSet.entrySet())
{
System.out.println(“key: ” + entry.getKey() + “; value: ” + entry.getValue());
}