Kind Emma and the summer holidays

I used Iterator and Date.getMonth() to check.

This is not the hardest, but I took more time than I realy want to because I didn't read the hint LOL

Could someone please help me understand how this line in the provided solution...

Date date = copy.get(key);

returns the date? Looking at the input data, eg...

map.put("Stallone", df.parse("MAY 1 2012"));

isn't the name the key, and the date the value? Thanks!

So to the people having problems with the "Hard" tasks, you need to either: 1. Get creative with your pre-existing knowledge. 2. Do research. I got creative. I printed out the date as String and splitted it. If the month is "June", "July", or "August", then you iterator.remove(); Good luck!

It was something very dizzy, but I passed. Take 2 days for this exercise. I would like to recommend If you want to change the month format from JAN,JUNE,JULY,..,DEC to number you can use

int a = pair.getValue().getMonth();

it will be change from DATE TYPE to INT

Since Date class is deprecated, I looked up a lot about Calendar class, which is the replacement for the Date class. Took a while to figure out the answer. Can solve by doing either for-each loop or using the iterator, but for both, you must set the calendar(calendar.setTime) with the value from the key-value set; otherwise, it won't pass. Glad people asked good questions and thankful for those who answered questions. Thanks for sharing. Happy coding! :)

A useful tip to bypass Concurrent Modification Exception. Create a duplicate of the Hashmap and use that in the for-each loop. At the end of the loop. Make desired modifications(insert, remove) to the original copy, that way you are not iterating through and modifying the map at the same time.

I find the Alex Lee videos on youtube helpful for some of these topics, like HashSet, HashMap etc.https://www.youtube.com/watch?v=PeFyhRr42ac

I'm seeing a pattern here: If it is "Hard", they don't bother teaching anything or provide any example, you just go ahead and google away None of the past lessons are going to help you here

Okay, I have to say two things about this exercise. First, it will not show if there is an error on the background and will show it as running and work but when verifying it will fail. As seen in different comments and help request the last requirement is failing, because you can not REMOVE from and iterating map using a for loop, this error is a common mistake in newbies like me. Second thing, to solve it, yes you can use the .getMonth() on the date, but first create a copy of the map and iterate through with a for loop then REMOVE from the original parameter map, then it will work. Also you could use an iterator, I did not try that but might work. Somehow the errors are not been shown in the console, unfortunatelly sometimes that is what tells you where is the mistake. Hope this helps.