Provide a set and a get method for each instance variable. In addition, provide a method named getInvoiceAmount that calculates the invoice amount (i.e., multiplies the quantity by the price per item), then returns the amount as a double value.
Ex 3.11 (Modified Account Class) Modify class Account (Fig. 3.8) to provide a method called withdraw that withdraws money from an Account. Ensure that the withdrawal amount does not exceed the Account’s balance. If it does, the balance should be left unchanged and the method should print a message indicating “Withdrawal amount exceeded account balance.” Modify […]
Create an array of Employee variables to store references to the various employee objects.
Ex 10.12 (Payroll System Modification) Modify the payroll system of Figs. 10.4–10.9 to include private instance variable birthDate in class Employee. Use class Date of Fig. 8.7 to represent an employee’s birthday. Add get methods to class Date. Assume that payroll is processed once per month. Create an array of Employee variables to store references to […]
Create two new Java files and save as PasswordVerifier.java & PasswordDemo.java and add them to your project.
Create a project with 2 Java class files. Create two new Java files and save as PasswordVerifier.java & PasswordDemo.java and add them to your project. o PasswordVerifier will contain class (of static) methods to check conditions required for a valid password o PasswordDemo.java will contain a main method with console I/O to prompt a user […]
write driver programs. Other programmers create new classes for others to use. And still other programmers do both.
Learning how to create and use classes and objects in Java is one of the most important concepts you will learn this semester. This is a KEY chapter on learning how to program in an object-oriented language. This assignment is designed to assess your ability to create a new class using a predefined UML diagram. […]