Implement the following in java, write all classes need in the following application, in addition to demo class that contains main method to test your application A customer has already account with a particular Website (Mawdoo3). This account holds all data related to the user such as name, phone num, email. Mawdoo3 site applies a new button to validate your phone num, but they need to not affect the existing application. Instead, they need to build adapter that can access validate phone num service and make it available for Mawdoo3 customers. When a customer needs to perform a validate phone num, the account cannot access directly Mawdoo3 account detail, but instead it can access adapter to complete the transaction. Validation phone number process includes the following 1. There must be two underscores ) in the phone num Also Number of characters including underscores equal 13. a. if the customer's phone num is valid, the new service will return valid "phone num" and if not, the service will return "not valid" b. The application will print the returned message to the user
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- Write in java: Define a class called Country. A Country has populationSize, area, capital, currency, and abbreviation (2-3 letters taken from the country name). Define at least two constructors, at least two getter methods, at least two setter methods, and Override the toString() and the equals() methods. The equals() must return true if the two countries have the same capital and populationSize and returns false otherwise. The abbreviation is the second letter and first letter of the country name and must be generated automatically (e.g. if the country name is Palestine the abbreviation is AP, if the country name is Jordan the abbreviation is OJ.) Write a main method, define an array of country objects, read countries data from the user, if two countries have the same abbreviation add the last letter from the country name to the abbreviation of the country inserted last. Display countries whose capital name ends with the letter ‘a’ or ‘A’In java, create a program that gathers user input and prints a paystub. This assignment requires one class per .java file, total of three classes. The first one is employee.java which gathers the user's id (fixed value), first name, last name, address, city, zip, phone, email, and hourly rate. The second one is payperiod.java, which gathers the user's hours worked (taking overtime into account), start date (fixed), end date (fixed), and paystub id (fixed). The third one is payrollmanager.java, which calculates and displays the data gathered from the first two. This class/file should also use methods such as: doubleCalculateGrossPay(Employee, PayPeriod), double CalculateRegularPay(Employee, PayPeriod), double CalculateOvertimePay(Employee, PayPeriod), and void PrintPaystub(Employee, PayPeriod).In this java assignment, we will be creating a paystub for an employee using classes, files, getters, and setters. Each file should only have one class and the class should share the same name as the file. We are going to implement the following classes: Employee - This class represent the employee. It needs the following fields exposed via getters and setters: Employee ID (hard code it to 1) First name, last name, middle initial Address, city, zip Phone, email Hourly rate PayPeriod - This class represents an employee's payment information. An employee will eventually have more than one pay period. It needs the following fields exposed via getters and setters: Pay period Id (hard code to 123456) Employee Id Start date, end date Number of hours PayrollManager - This class provides the functionality we need to compute and display the payroll. It should implement the following methods: double CalculateGrossPay (Employee, PayPeriod) - this should return the total gross for the…
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