Multi-line pretty-printing of (nested) collections in Java

Question

I want to be able to (pretty-)print the contents of my maps.

They should have newlines and indentation rather than on a single line; ignoring the toString methods of

Answer 1

I am not 100% sure, might be is this what you are looking for and which you called pretty printing -

Map map = new HashMap();
...
for(Map.Entry entry: map.entrySet()){
    System.out.println(entry.getKey()+" - "+ entry.getValue());
}