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- Email- date: Date- subject: String- urgent: boolean+ Email(date:Date,urgent:boolean,subject:String)+ getDate(): Date+ setDate(date: Date): void+ getSubject(): String+ setSubject(subject:String): void+ isUrgent(): boolean+ setUrgent(urgent: boolean): void+ toString(): String Write java code for all the methods shown on the class diagram. Below arethe details needed for the different methods:a. The default constructor will assign the subject and date default values.b. The overloaded constructor should initialize the instance variables withthe parameters passed to the constructor.c. The toString() method should print the information of an email, theurgent flag, date, and the subject of the emailname: string - ownerName: String Cat numberOfTeeth int lengthofTail : int + Cat (name: String, ownerName: String, numberOfTeeth: int, lengthofTail:int) i. ii. + Pet (name:String, ownerName: String) + getName(): String + getownerName (): String + getNumberOfTeeth (): int + getLengthofTail(): int Pet iii. Budgie colourOfFeathers: String + Budgie (name: String, 1. Convert the UML class diagram above into a java code with the following conditions The methods in the Pet class are abstract. ownerName: String, colourofFeathers:String) + getColourOfFeathers (): String Create a class called test. The main() method in the test class should create three Cat objects and two Budgie objects. The main() method should also create indirectly an object of the Pet class. Demonstrate polymorphism in your test class. 2. Write a Java Code for a simple GUI program that creates a frame and changes the background to green. Examiner's Name: George Kodjo Anni1. Dummy GUI Application by Codechum Admin A GUI Application is an application that has a user interface that the user can interact with. For this program, we will be simulating this behavior. First, implement another class called Checkbox which implements the Clickable interface which has only one method: public void click(). The Checkbox will have the following properties: private boolean isChecked (defaults to false upon the creation of object) private String text Additionally, it should have the following methods: the implementation of the click() method If the isChecked is currently false, this will set the isChecked to true and will then print the message "Checkbox is checked". If it is currently true, this will set the isChecked to false and will then print the message "Checkbox is unchecked". Note that the messages to be printed should have also print a new line at the end. an override of the toString() method which returns the message: "Checkbox ({text} - Clicked…
- Please provide Handwritten answer with explanation. Computer Science 14. We can add many values in CHECKBOX component in applet using additem() method. Select one: True False ----------------------------- 15. A class can have many objects. Select one: True False ---------------------------- 16. String and StringBuffer will have same set of methods. Select one: True FalseJava Constructor(String) This constructor will take a string of digits(no commas) and turn it into an UnboundedInt object (MUST BE STRING INPUT) UnboundedInt add (UnboundedInt ) A method that adds the current UnboundedInt with a passed in one. The return is a new UnboundedInt. UnboundedInt multiply (UnboundedInt ) - do this one last! A method that multiplies the current UnboundedInt with a passed in one. The return is a new UnboundedInt. void addEnd ( int ) -optional method (helpful) A method to add a new element at the end of the sequence , used for building up each higher term in a single sequence. (i.e. adding a new IntNode to the linked list) UnboundedInt clone( ) a method that returns a copy of the original structure boolean equals ( Object ) a method that returns true if linked list represents the same numerical number as the input parameter. False otherwise. Overrides method in Object class. String toString ( ) creates a string of all elements…What is Modifying StringBuffer Objects?
- Eclipise Exercise 1: Write a Java application that simulates a test. The test contains at least five questions about first three lectures of this course. Each question should be a multiple-choice question with 4 options. Design a Test class. Use programmer-defined methods to implement your solution. For example: create a method to simulate the questions – simulateQuestion create a method to check the answer – checkAnswer create a method to display a random message for the user – generateMessage create a method to interact with the user - inputAnswer Display the questions using methods of JOptionPane class. Use a loop to show all the questions. For each question: If the user finds the right answer, display a random congratulatory message (“Excellent!”,”Good!”,”Keep up the good work!”, or “Nice work!”). If the user responds incorrectly, display an appropriate message and the correct answer (“No. Please try again”, “Wrong. Try once more”, “Don't give up!”, “No. Keep…Briefly describe each of the following string object methods: RemoveDefine a Student class, with 3 data fields: ID: string Name: string FavoriteThing: string Create an application that stores and outputs a list of the students' favorite things. Suppose each student only has one favorite thing.
- Code in Java keep the code as simple as possible do not use arrays nor parseItnt StringBuilder etc keep it very simple. Class TextEdit In text editing class. Its constructor it receives a string. The string will be stored in a field called initialValue using proper setter methods and proper documentation for Each of the methods. This class also contains another String field called: ”mixedResult” which is only defined globally and will be initialized using a method in the future in the main class namely the mix method. The public String toToken() method is a method that will use the initialValue field and it for the letter ’p’ or the letter ’A’. If it finds the letter, every element on the left side of the found letter will be stored in another string and returned. Example: If the initialValue was: ”This is a possible resource allocation”. The returning String will be: ”possible resource allocation”. Use control statements here iterate through the string using a counter control…Computer Science java 1-In your code you implemented an action listener object named actionListenerForButton to handle button clicks for a button object named myButton. Show the line of code that adds this listener object to the button object. Please make sure your line of code is complete, including the semicolon.(it should be only 1 line of code) 2- In your code you have a container object named myContainer and a label object named myLabel. Show the line of code that adds the label object to the container object. Please make sure your line of code is complete, including the semicolon.(it should be only 1 line of code)JAVA – color: String – make: String – model: String – msrp: double + Car() + Car(color: String, make: String, model: String, msrp: double) + getColor() : String + setColor(color : String ) : void + getMake() : String + setMake(make: String ) : void + getModel() : String + setModel(model: String ) : void + getMsrp () : double + setMsrp(msrp: double) : void + toString(): String The Car class will have four attributes/instance variables/fields and 11 methods. CarDealership Class The CarDealership class will simulate a real life automotive dealership. This class will create 3 Car objects and store them in an array named Lot. The class will then display all of the information pertaining to each car (color, make, model, etc.) to the User and allow the User to select one to purchase. Once the User selects a car to purchase, the Car object should be removed from the array (Lot) and another Car object should be put in its place.
