#Author:  James Tam
#Version: October 21, 2024

students = {111:"James Tam,business,computer science",
            250:"Jim Tam(Ace student,undeclared",
            117:"Scott Bruce,business"}
print("All students: whole dictionary")
print("\t", students)

input("press enter")

studentID = 111
print("\nOne student %d" %(studentID))
print(students[studentID])

print("\n\tNumber of students %d" %(len(students)))

#JT: unless the keys are following a fixed sequence a while-loop can't be used.
#Recall: need to retrieve data via the keys not through an index from zero to (size-1)
print("\nAll students: one student at a time")
for aStudentID in students:
    print("\t%d: %s" %(aStudentID,students[aStudentID]))