Need assistance with this java program looking for help with many methods and what I did wrong lab posted below

Purpose Purpose is to practice using file input and output, and array list of objects. Also, this lab specification tells you only what to do, you now have more responsibility to design how to do it. Problem description You are given a text file called 'students txt' that contains information on many students. Your program reads the file, creating many student objects, all of which will be stored into an array list of student objects, in the students class. The Tester class controls everything, calling many students class methods to produce lots of different outputs. The program must write the output to an output file and to the Terminal Window. File and class specifications Students. txt file format Information for each student is stored in the file as 3 lines of text: name age GPA e.g. the following shows data for two students: 22 1.2 22 2.71 Student class The student class has instance variables and methods to represent one single student. Your student class must have exactly and only the following instance variables: private String name; private int age private double gpa Design appropriate constructors and other methods for your student class, including