6 PM – Intro To Java

Today We Do

1. We reviewed the homework where after user login, user should only be able to view his/her own emails in his/her Inbox. This is what should happen when they select “Check your inbox”.
2. We reviewed about HashMap.
3. We reviewed, the current design now, will only be able to store one email message person, which is not good.
4. Next week we are going to discuss how to store more than one email messages per person.

Homework

1. Create a new Java project in IntelliJ, call it HashMapListProject
2. Create a new Java file MapLoop.java and copy code from here: https://www.netjstech.com/2015/07/how-to-iterate-hash-map-of-arraylists-java.html
3. Run the program and make sure there is no error. Next week we are going to discuss about Map<String, List<EmailMessage>> which is similar to exercise above.