5 PM – Intro To Java – Gamas

Today We Do

1. We continued learning Map/HashMap by storing Student into map and finding Student in map. Also we did list all students by going through every value in the map using for loop.
2. We compared the performance of searching Map vs List. The result was searching Student using Map.key (firstName) is really fast.

Homework

1. In findTeacher()… add code to print “We cannot find %s teacher in our system.” when the teacher name cannot be found in the Map. This is very similar to what we did in findStudentByMap()
2. In listAllStudents()… add code to check if there is no students in the system to print “There are no students in our system yet.” . Do the same thing with listAllTeachers().