5 PM – Intro to Java – William

Today we did:

1. Reviewed Homework — finished SchoolSystem
2. Intro to Hashmaps (similar to dictionaries in python)
   1. map.put(key, value) – add to hashmap
   2. map.get(key) – get value from hashmap
   3. map.containsKey(key) – see if key/value pair is in hashmap
   4. map.remove(key) – remove key/value pair from hashmap
   5. map.size() – get size of hashmap
   6. for each loop to loop through hashmap
3. Started on AYCLOGIC Email Application
   1. Created EmailAccount class
   2. Add email account
   3. List all email accounts

Homework:

1. Create file named Jul21_PetSystem.java
2. Fix all the mistakes in the following link: https://www.ayclogic.com/fix-java-error/

Upload this file to the designated Google Drive folders

If you have any questions, please email me at williamsmith@ayclogic.com or szhuang@ayclogic.com