2. Create a java class as the next diagram and make some objects and print outputs. Note:setRadius, setColor, setRadiusColor both are mutators. The default constructor will initliaizeradius to 1, and color to "red". The other constructor will call setRadiusColor method.Circle+ radius: double- color: String+Circle()+Circle(color:String, radius:double)+ getRadius(): double+ setRadius (radius: double): void+setColor(color:String):void+getColor():String+setRadiusColor(color:String,radius:double):void+equals(c:Circle) : Boolean

Answered: 2. Create a java class as the next…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Add a static method, public static void changeLetter (StringBuilder sb, char letter) Convert all occurrences of the letter variable in the StringBuilder to upper case. Write in java and use test case example as reference.
A class may occasionally be dependent upon itself. In other words, an object of one class engages in communication with an object of the same class. To do this, a method of the class can take an object of the same class as a parameter.An illustration of this scenario is the concat method of the String class. One String object calls the method, while another String object is supplied as an argument. Here's an illustration:str2 = str1.concat;The String object (str1) that executes the method adds its characters to the String (str2) that was supplied as a parameter. As a result, a fresh String object is produced and saved as str3. Write Java code to put the circumstances given into effect.
java please dont take other website'answer. rthis is actually practice question ANIMALCLASS Create an Animal class. Each animal has a name, an x and y integer coordinate. The Animal class should have at minimum the following methodsbelowbut you may want to add more if necessary: Also note, everyanimal will need to have to have “z”passed to it so that it knows how big the map is. •A constructor that starts the animal at 0,0 with a name of "Unknown Animal"and only accepts a single int value (int mapSize). •A parameter constructor that allows the programmerto input all 4pieces of information.(x,y, name, mapSize)oCheck the parameters for valid input based on the constraints. Ifany of the input valuesis invalid, adjust it any way you deem necessary in order to make it valid. •getX()and getY() •getName() •toString(). o This should print out the name and coordinates of the animal. •touching(Animal x) This method should determine if the animal is on the same spot as a secondanimal(x). It…
Look at the code and the sample inputs and outputs below to design the program accordingly. 1. Write a class called Color that only adds the 3 primary colors (red, blue and yellow). 2. Write a required constructor for the class. 3. You have to use operator overloading to get the desired outputs as shown. Hint: There will be only one constructor and only one method tackling the addition operation. No other methods are required. Note: Order of the color given as input should not matter. For example, in sample input 1, if the first input was yellow and then red, the output would still be orange. Sample Input 1: First Color: red Second Color: yellow #Write your code here #Do not change the following lines of code C1 = Color(input("First Color: ").lower()) C2 = Color(input("Second Color: ").lower()) C3 = C1 + C2 print("Color formed:", C3.clr) Sample Output 1: Color formed: Orange %3D Sample Input 2: First Color: red Second Color: blue Sample Output 2: Color formed: Violet Sample Input 3:…
Write a java program that will create a Deck object and shuffle the deck. Then, you will draw ten cards from the deck and perform selection statements that carry out the following: If the card is red, then print “Card is red” to the screen. Otherwise, print “Card is black” to the screen. If the card is a picture card, print “That's a picture card”. If the card is an ace, print “That's an Ace”. If the card has a value less than 6, print “Card has a small value”. If the card has a value between 6 and 10 (inclusive), print “Card has a large value”. In the source code, write an algorithm for the program in a comment block. Also, in a comment block, paste the results of running your program. Print out and turn in the completed source code with those comments.
can someone help me? The questions are: 1. Add an addExerciseAdd method that adds an exercise to a private variable exercises in Exercise You don't need to create a getter or setter for this private variable. 2. Modify the constructors in Exercise so that you can create two types of workouts (let one constructor use the other; each variable can only have a value in one constructor): a training schedule with exercises, but without a trainer. a training schedule with exercises and with a trainer. import java.util.ArrayList;class Exerciseplan {private String customer;private String trainer;Exerciseplan(String customer) {this.customer = customer;}Exerciseplan(String customer, String trainer) {this.customer = customer;this.trainer = trainer;}private void printExercise(String name, String muscleGroup, Integer numberOfSets, Integer repetition, Integer restTime) {System.out.println("Oefening voor " + muscleGroup + ":" +" herhaal " + numberOfSets + " keer " +"(rust tussendoor " + restTime +…
Add a new Java class to your project by right clicking on the src folder in the Project pane and select New > Java Class.Enter Hours as the name for this class, and IntelliJ will add it to the files in the src folder for your project. Remember tocopy and insert the standard heading for the main method as you did for Program 2.Write a program that prompts the user to enter a number of hours, and produces the equivalent number of days as a wholenumber along with the number of hours left over. Assume that a day has exactly 24 hours. The following example showsthe format to use for your output, where the input entered by the user is underlined.Enter the number of hours: 100100 hours is 4 days, plus 4 hours.Define Variables: The number of hours will be a whole number, and we would like to obtain results as whole numbers ofdays and hours, so use the int data type to declare the variables to hold the numbers of hours input, as well as the results(the number of days and number of hours left…
Write this code to get 7 inputs: import javax.swing.*;import java.awt.*;import java.awt.event.*; class WeeMadLib implements ActionListener { JFrame wmlGame = new JFrame("Wee Mad Lib");JPanel gameBoard = new JPanel(new GridLayout(3,3)); JLabel subjectLabel = new JLabel("Subject");JLabel verbLabel = new JLabel("Verb");JLabel objectLabel = new JLabel("Object"); JLabel subject = new JLabel("My friend ");JTextField verb = new JTextField(25);String[] objectOptions = { " a ball."," chickens."," a kazoo.", " an igloo." };JComboBox object = new JComboBox(objectOptions); JButton clear = new JButton("Clear");JTextArea sentence = new JTextArea("My friend ___ ___.");JButton exit = new JButton("Exit"); public WeeMadLib() { wmlGame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); wmlGame.setSize(300,300); subjectLabel.setOpaque(true); subjectLabel.setBackground(new Color(0,255,255)); subjectLabel.setHorizontalAlignment(JLabel.CENTER); sentence.setEditable(false); sentence.setOpaque(false);…
Please help me fix the errors in the java program below. There are two class AnimatedBall and BouncingBall import javax.swing.*;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;public class AnimatedBall extends JFrame implements ActionListener{private Button btnBounce; // declare a button to playprivate TextField txtSpeed; // declare a text field to enterprivate Label lblDelay;private Panel controls; // generic panel for controlsprivate BouncingBall display; // drawing panel for ballContainer frame;public AnimatedBall (){// Set up the controls on the appletframe = getContentPane();btnBounce = new Button ("Bounce Ball");//create the objectstxtSpeed = new TextField("10000", 10);lblDelay = new Label("Enter Delay");display = new BouncingBall();//create the panel objectscontrols = new Panel();setLayout(new BorderLayout()); // set the frame layoutcontrols.add (btnBounce); // add controls to panelcontrols.add (lblDelay);controls.add…
Write a method that takes two string parameters, and tells whether the first is a substring of the second. You can't use framework methods that do this for you, such as indexOf(). In other words, you have to write the loops yourself. But, you can use the primitive methods such as charAt(). Also analyze the program's performance and state the big-O complexity of your method. Provide a screenshot of the code working.
This is for pygame Ball Class: The Ball class inherits from Drawable and it will draw a circle at its current location. You must implement at the very least the required methods of the base class (draw and get_rect), as well as a constructor. You may need to implement other methods as part of the public interface. This is the Drawable Class

Recommended textbooks for you

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

C How to Program (8th Edition)

Computer Science

ISBN:

9780133976892

Author:

Paul J. Deitel, Harvey Deitel

Publisher:

PEARSON

Database Systems: Design, Implementation, & Manag…

Computer Science

ISBN:

9781337627900

Author:

Carlos Coronel, Steven Morris

Publisher:

Cengage Learning

Programmable Logic Controllers

Computer Science

ISBN:

9780073373843

Author:

Frank D. Petruzella

Publisher:

McGraw-Hill Education

SEE MORE TEXTBOOKS