Write a program that processes a data file of students’ course grade data. The data arrive in random order; each line stores information about a student’s last name, first name, student ID number, grade as a percentage, and letter grade. For example, here are a few lines of data:
Smith Kelly 438975 98.6 A
Johnson Gus 210498 72.4 C
Reges Stu 098736 88.2 B
Smith Marty 346282 84.1 B
Reges Abe 298575 78.3 C
Your program should be able to sort the data by any of the columns. Use Comparators to achieve the sort orderings. Make the data sortable by last name, student ID, and grade percentage in ascending and descending order. For example, here are the lines of student data sorted a few different ways:
Student data, by last name:
Johnson Gus 210498 72.4 C
Reges Stu 098736 88.2 B
Reges Abe 298575 78.3 C
Smith Kelly 438975 98.6 A
Smith Marty 346282 84.1 B
Student data, by student ID:
Reges Stu 098736 88.2 B
Johnson Gus 210498 72.4 C
Reges Abe 298575 78.3 C
Smith Marty 346282 84.1 B
Smith Kelly 438975 98.6 A