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- please use the name, phonenumber and phonebookentry to build this. The three parallel arrays are gone — replaced with a single array of type PhonebookEntry. You should be reading in the entries using the read method of your PhonebookEntry class (which in turn uses the read methods of the Name and PhoneNumber classes). Use the equals methods of the Name and PhoneNumber classes in your lookup and reverseLookup methods. Use the toString methods to print out information. Make 100 the capacity of your Phonebook array Throw an exception (of class Exception) if the capacity of the Phonebook array is exceeded. Place a try/catch around your entire main and catch both FileNotFoundExceptions and Exceptions (remember, the order of appearance of the exception types in the catch blocks can make a difference). Do not use BufferedReader while(true) breaks The name of your application class should be Phonebook. Also, you should submit ALL your classes (i.e., Name, Strip off public from all your class…Please use "NewDate" class to solve this problem.Create another class Teacher that will inherit properties and functionalities from personclass. Teacher class will have experience data member and an array of subjects taught bythat particular teacher.. Provide setter and getter methods for all data members.. The teacher is allowed to teach at least 2 subjects.. Perform input validation in setSubject() function so the user will not be able to inputanything except string value.. Default experience of the teacher will be 2 years.. The parameterized constructor of person class will be called using the teacher classconstructor. This will initialize all the data members of person class.. Using teacher class object display every info of teacher.
- Part 2: Sorting the WorkOrders via dates Another error that will still be showing is that there is not Comparable/compareTo() method setup on the WorkOrder class file. That is something you need to fix and code. Implement the use of the Comparable interface and add the compareTo() method to the WorkOrder class. The compareTo() method will take a little work here. We are going to compare via the date of the work order. The dates of the WorkOrder are saved in a MM-DD-YYYY format. There is a dash '-' in between each part of the date. You will need to split both the current object's date and the date sent through the compareTo() parameters. You will have three things to compare against. You first need to check the year. If the years are the same value then you need to go another step to check the months, otherwise you compare them with less than or greater than and return the corresponding value. If you have to check the months it would be the same for years. If the months are the same you…Create a new class, called ConstantList that stores a "constant" list of integers (ints).Dnce created the list is fixed (none of the items can be changed, no items can be added or removed, the order is fixed). Use an array to store your list. Your class will have a single constructor that takes an array of ints as input that will be used to specify the constant list. You must provide appropriate methods to give the user of your class access to the list elements. A user should be able to access individual elements (by position) and the entire list of numbers. Your class must use encapsulation. Explain how your solutions solves the problem. That is, explain why your ConstantList really is a constant list of numbers.Choose an enterprise and do a business description of it. 1-2 pages. Create all classes for entities. All classes must have at least a constructor, get and set methods for all private variables and a toString method. Create classes also for connection entities (e.g. orders, reservations, etc.) All information should be saved in files. When opening the program, all information from files must be loaded in array lists. Use an array list for every class. The program must have at least one menu where the user can choose the operations to work. You should at least have one class that inherits from another class. You should have at least one interface that is extended by at least 2 classes. You must use the interface methods in your program. You are allowed to use the GUI for this project. If not use JOptionPane You are allowed to use databases, instead of files.
- To demonstrate working with ArrayLists, we will be working with four source files: a Dessert class, two classes that extend Dessert called IceCream and Cake, and a TestDessert class. The TestDessert class contains a main() method that declares an ArrayList to hold Dessert objects. This ArrayList is referenced by the variable named "list". Examine TestDessert's main() method and notice the four comments. You are to implement code that accomplishes the tasks described in each step. For step 1, you are to populate the ArrayList with 10 IceCream and Cake objects. These objects should be inserted into the ArrayList at random. This means each run of the program should produce an ArrayList with different proportions of IceCream and Cake objects. After this operation, the ArrayList should contain 10 total objects (IceCream and Cake objects). Display the ArrayList after the operation. For step 2, if the first and last dessert in the ArrayList are different (one is IceCream and the other is…Create a class Student with following data members, name, roll, and marks as private data member. Create array of objects for three students, compare their marks but make sure allocating memory to all the objects during run time only and display the records of the student who is getting highest score.EclipseIDE - Java Programming assigment For your program: Create a data class named Automobile that implements the Comparable interface. Give the class data fields for make, model, year, and price. Then add a constructor, all getters, a toString method that shows all attribute values, and implement Comparable by using the year as the criterion for comparing instances. Write a program named TestAutos that creates an ArrayList of five or six Automobiles. Use a for loop to display the elements in the ArrayList. Sort the Arraylist of autos by year with Collections.sort(). Finally, use a foreach loop to display the ArrayList sorted by year.
- Modify only the class implementation file, custom_string.cpp to do the following tasks. 1. Complete the implementations of the mutator methods: a. void pushFront (const string &s); This method merges the strings to the object's attribute data in front. For example, if we have an object cs: CustomString cs ("World"); then this operation: cs.pushFront ("Hello "); will modify the data of cs to "Hello World". b. void pushBack (const string &s); This method merges the strings to the object's attribute data at the end. For example, if we have an object cs: CustomString cs ("C++ "); then this operation: cs.pushBack ("Programming"); will modify the data of cs to "C++ Programming".Create a new class, called ConstantList that stores a "constant" list of integers (ints). Once created the list is fixed (none of the items can be changed, no items can be added or removed, the order is fixed). Use an array to store your list. Your class will have a single constructor that takes an array of ints as input that will be used to specify the constant list. You must provide appropriate methods to give the user of your class access to the list elements. A user should be able to access individual elements (by position) and the entire list of numbers. Your class must use encapsulation. Explain how your solutions solves the problem. That is, explain why your ConstantList really is a constant list of numbers.Answer the given question with a proper explanation and step-by-step solution. USING JAVA: ---Sorting the Invoices via dates--- Another error that will still be showing is that there is not Comparable/compareTo() method setup on the Invoice class file. That is something you need to fix and code. Implement the use of the Comparable interface and add the compareTo() method to the Invoice class. The compareTo() method will take a little work here. We are going to compare via the date of the invoice. The dates of the Invoice class are by default saved in a MM-DD-YYYY format. So they have a dash '-' between each part of the date. So you will need to split the date of the current invoice AND split the date of the object sent to the method. We have three things to compare against here. First we need to check the year. If the years are the same then you should go another step forward and compare the months. If the months are the same then you will lastly have to compare the day. Use whatever…