Each student takes four modules: Java, RAD, PD and IIS. Attendance is shown for each module for each of 5 weeks.
The input data att2.txt contains one line per student.
Print the names of the students who attended week 4 of Java. The Java module is the first set of digits, week four is the fourth digit.
For each student show the total number of events attended.
For the PD module show the number of students who attended in each of the weeks 1 to 5.
For each student show the week in which they have been "most recently seen".
State which module is the best attended. The modules are in order: "Java", "RAD", "PD", "IIS".