(IllegalTriangleException)
/** Construct a triangle with the specified sides */
public Triangle(double side1, double side2, double side3)
throws IllegalTriangleException {
// Implement it
}
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Chapter 12 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version, Student Value Edition (11th Edition)
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- (Account class)Create an Account class that a bank might use to represent customers’ bank accounts. Include a data member of type int to represent the account balance. Provide a constructor that receives an initial balance and uses it to initialize the data member. The constructor should validate the initial balance to ensure that it’s greater than or equal to 0. If not, set the balance to 0 and display an error message indicating that the initial balance was invalid. Provide three member functions. Member function credit should add an amount to the current balance. Member function debit should withdraw money from the Account and ensure that the debit amount does not exceed the Account’s balance. If it does, the balance should be left unchanged, and the function should print a message indicating "Debit amount exceeded account balance." Member function get_Balance should return the current balance. Create a program that creates two Account objects and tests the member functions of class…arrow_forward(The Time class) Design a class named Time. The class contains: - The data fields hour, minute, and second that represent a time. - A no-arg constructor that creates a Time object for the current time. (The values of the data fields will represent the current time.) -A constructor that constructs a Time object with a specified elapsed time since midnight, January 1, 1970, in milliseconds. (The values of the data fields will represent this time.) -A constructor that constructs a Time object with the specified hour, minute, and second. - Three getter methods for the data fields hour, minute, and second, respectively. -A method named setTime (long elapseTime) that sets a new time for the object using the elapsed time. For example, if the elapsed time is 555550000 milliseconds, the hour is 10, the minute is 19, and the second is 10. Draw the UML diagram for the class and then implement the class. Write a test program that creates two Time objects (using new Time (), new Time(555550000),…arrow_forwardInstructions-Java Assignment is to define a class named Address. The Address class will have three private instance variables: an int named street_number a String named street_name and a String named state. Write three constructors for the Address class: an empty constructor (no input parameters) that initializes the three instance variables with default values of your choice, a constructor that takes the street values as input but defaults the state to "Arizona", and a constructor that takes all three pieces of information as input Next create a driver class named Main.java. Put public static void main here and test out your class by creating three instances of Address, one using each of the constructors. You can choose the particular address values that are used. I recommend you make them up and do not use actual addresses. Run your code to make sure it works. Next add the following public methods to the Address class and test them from main as you go: Write getters and…arrow_forward
- (java) The Painting Subclass Write class as follows: The class is named Painting, and it inherits from the Art class. It has a private String member variable named medium It has a default constructor that assigns the values "No name" to name, "No artist" to artist, -1 to year, and "No medium" to the medium variable. This default constructor calls the four-argument constructor. It has a four-argument constructor to assign values to the name, artist, year, and medium variables. It has a getter and settersfor the medium variable. It has a toString() method This class contains no other methods Make sure to include your name, the name of this class, our course number, and the Activity number in a Javadoc comment at the top. Make sure to write a Javadoc comment for each of these methods.arrow_forward[JAVA] Question 4: Write the source code of the classes ReportCurrentRevenue and ReportPastIncome. The ReportCurrentRevenue class is responsible from calculating the current amount of money to be gained if all the guests would leave from the hotel. The ReportPastIncome class is responsible from calculating the money gained so far from the previous visits of guests. Class Hotel will create one instance of this class and execute it in multithreaded fashion in its report method. You will code Hotel.report in the next question. Question 5: Write the source code of only the following methods of the class Hotel. The explanations of the methods you need to code are given below. Don’t forget to address the multithreading issues when coding. report: The details of this method are given in Question 4. restore: This method loads the Hashtable members and LinkedList visits from the path given by the fileName parameter. However, if there are ongoing multithreaded operations, it must first wait…arrow_forwardClasses and Objects) Hand-write a complete Java class that can be used to create a Car object as described below. a. A Vehicle has-a: i. Registration number ii. Owner name iii. Price iv. Year manufactured b. Add all instance variables C. The class must have getters and setters for all instance variables d. The class must have two constructors, a no-args and a constructor that receives input parameters for each instance variable.arrow_forward
- (Java) The Abstract Art Class Write an abstract class as follows: The class is named Art It inherits from the Comparable interface It has a private String member variable named name It has a private String member variable named artist It has a private int member variable called year It has a default constructor that assigns the values "No name" to name, "No artist" to artist and -1 to the year. This default constructor calls the three argument constructor. It has a three-argument constructor to assign values to the name, artist and year variables. It has a copy constructor that makes a copy of another non-null Art object It has getters and setters for the name, artist and year variables It has a toString() method that creates a string of artist, with name and year tabbed once on subsequent lines (see sample output) It has an equals method that compares this Art to another Object It has a compareTo method that compares in this order: 1) artist, 2) name, 3) year This class contains no…arrow_forward(In python please) Q#4 Write a class named Patient that has attrib already have the code written I just need to know how to total the bill portion.utes for the following data: First name and last name Date of birth Address, city, state, and ZIP code Phone number The Patient class’s _ _init_ _ method should accept an argument for each attribute.Next, write a class named Appointment that represents an appointment that is assigned to a patient.The Procedure class should have attributes for the following data: Date of the appointment Reason of the appointment Name of the practitioner who visited a patient Bill for the appointment The Appointment class’s _ _init_ _ method should accept an argument for each attribute. Next, write a program that creates an instance of the Patient class, initialized with sample data. Then, create three instances of the Appointment class, initialized with the following data: Appointment #1: Date: 04/15/2021 , Reason: Physical Exam, Practitioner: Dr.…arrow_forward(Date Class) Create a class called Date that includes three pieces of information as auto-implemented properties—a month (type int), a day (type int) and a year (type int). Your class should have a constructor that initializes the three automatic properties and assumes that the values provided are correct. Provide a method DisplayDate that displays the month, day and year separated by forward slashes (/). Write a test app named DateTest that demonstrates class Date’s capabilities.arrow_forward
- (Creating Custom Exception Class) Write a Password class that stores a password string. Passwords must contain at least seven alpha-numeric characters, with at least one letter and one digit. Also write an InvalidPasswordException class that extends Exception. The Password constructor should throw an InvalidPasswordException, which should report an appropriate message based on a given string (e.g. if the string contains no digits, the exception should report this fact). Write a GUI program to prompt the user to enter a password and report an InvalidPasswordException if an invalid password is entered. Please teach and help me how to deisgn the program based on the two files given .Some sample screenshots are shown below: InvalidPasswordException.java public class InvalidPasswordException extends Exception{ public InvalidPasswordException (String errMsg){ super(errMsg); } } Password.java public class Password {private String passwordstr; public…arrow_forward(Java) The Sculpture Subclass Write class as follows: The class is named Sculpture, and it inherits from the Painting class. It has a private boolean member variable named humanForm It has a default constructor that assigns the values "No name" to name, "No artist" to artist, -1 to the year, "No medium" to the medium, and false to the humanForm variable. This default constructor calls the five argument constructor. It has a five-argument constructor to assign values to the name, artist, year, medium, and humanForm variables. It has a getter and setter for the humanForm variable. It has a toString() method. This class contains no other methods Make sure to include your name, the name of this class, our course number, and the Activity number in a Javadoc comment at the top. Make sure to write a Javadoc comment for each of these methods.arrow_forward- Create a class Rational for performing arithmetic with fractions.Write a driver program to test the class. Provide a constructor thatenables an object of this class to be initialized when it isinstantiated. The constructor should contain default values in caseno initializes are provided and should store the fraction in reducedform. Provide a private function to reduce numbers.Provide Public member functions for each of the followingarithmatic’s functions (addition – subtraction – multiplication –division), printing in the form a/b, printing in floating point formatand final overload the == and != operators to allow comparisons oftwo fraction numbers.Include any additional operations that you think would be useful fora rational number class.Design, implement, and test your class.arrow_forward
- C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning