Implementation: After analysing the given requirements, implement the required application: • with Object Oriented Programming style • following the rules of good programming style (e.g. adding comments, etc.) • using only the material covered in M251 (and its prerequisites) Hints: • For each class, it is required to implement constructors, setters, getters, toString() method, and any other necessary method • If the user tries to do an operation that could violate the state of objects, the operation should be ignored and the application should display an error message (e.g. adding a kid to the same group twice, etc.) • Checking equality of any 2 objects should be done via the equals() method There is a class that will do the main job of keep tracking of the kids as follows: o It has one collection to store the whole data (all groups of all sports) o It has static methods, one for each operation happens frequently o For each adding or removing operation, a message should be displayed to the user to explain the status of the operation (i.e. if it was successful or not) Testing: After implementing the required classes, design and implement a testing class to test them as follows: • Create at least 7 groups of at least 3 sports and add them to the collection that stores the whole data then add and remove some kids from them. • Try to violate the state of the objects and show that your code prevents all violations. • Show that the other operations that happen frequently are working fine. • At the end, the whole data should be saved into a text file and this file should be saved automatically inside the folder contains vour lava proiect
Implementation: After analysing the given requirements, implement the required application: • with Object Oriented Programming style • following the rules of good programming style (e.g. adding comments, etc.) • using only the material covered in M251 (and its prerequisites) Hints: • For each class, it is required to implement constructors, setters, getters, toString() method, and any other necessary method • If the user tries to do an operation that could violate the state of objects, the operation should be ignored and the application should display an error message (e.g. adding a kid to the same group twice, etc.) • Checking equality of any 2 objects should be done via the equals() method There is a class that will do the main job of keep tracking of the kids as follows: o It has one collection to store the whole data (all groups of all sports) o It has static methods, one for each operation happens frequently o For each adding or removing operation, a message should be displayed to the user to explain the status of the operation (i.e. if it was successful or not) Testing: After implementing the required classes, design and implement a testing class to test them as follows: • Create at least 7 groups of at least 3 sports and add them to the collection that stores the whole data then add and remove some kids from them. • Try to violate the state of the objects and show that your code prevents all violations. • Show that the other operations that happen frequently are working fine. • At the end, the whole data should be saved into a text file and this file should be saved automatically inside the folder contains vour lava proiect
Chapter7: Developing An Excel Application
Section: Chapter Questions
Problem 2.5CP
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