For activities with output like below, your output's whitespace (newlines or spaces) must match exactly. See this note. Write code that outputs variable num_rooms. End with a newline. Our tests will run your program with input 2, then run again with input 5. Your program should work for any input, though. 3 num_rooms = input() 4 5 Your code goes here *** 6 1 2

For activities with output like below, your output's whitespace (newlines or spaces) must match exactly. See this note. Write code that outputs variable num_rooms. End with a newline. Our tests will run your program with input 2, then run again with input 5. Your program should work for any input, though. 3 num_rooms = input() 4 5 Your code goes here *** 6 1 2

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

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In this exercise, you are going to complete the Rectangle class. You need to complete the class so that you can print and compare two rectangles. Once complete, use the RectangleTester to test the results. In the tester class, you are given 3 rectangles that you should print and compare. Sample results are provided below. Sample output A rectangle with a width of 5 and a height of 4 A rectangle with a width of 5 and a height of 4 A rectangle with a width of 10 and a height of 4 true false =========================================== public class RectangleTester{public static void main(String[] args){Rectangle rect1 = new Rectangle(5, 4);Rectangle rect2 = new Rectangle(5, 4);Rectangle rect3 = new Rectangle(10, 4);// Print all three rectangles// Print one true statement comparing rectangles// Print one false statment comparing rectangles}} =========================================== public class Rectangle{ private int width;private int height;public Rectangle(int width, int height) {}}
For this problem, you are given a java code FlipAgain.java. Copy the .java file to your project folder. Open the file in your IDE. You have to edit this code to make it work. You can see that the code I have given you does not compile. So, you won’t be able to run it without fixing the code. Perform the following tasks in order. The code as given does not compile. Notice that the while loop tests if again.equals("y"), but the variable again doesn't have a value at first. Give it a value so that the code will compile and the loop will run at least once. Now that the program is working, change the loop from a while loop to a do-while loop. Make sure it still works. What happens if you delete what you added in step 1? Change the line back to just String again; Does the program still work? Why or why not? (Answer in a comment in the program.) After completing the above three tasks submit the final code, where you converted the while loop to do-while loop. FlipAgain.java ----->…
ScenarioYour task is to prepare a simple code able to evaluate the end time of a period of time, given as a number of minutes (it could be arbitrarily large). The start time is given as a pair of hours (0..23) and minutes (0..59). The result has to be printed to the console. For example, if an event starts at 12:17 and lasts 59 minutes, it will end at 13:16. Don't worry about any imperfections in your code - it's okay if it accepts an invalid time - the most important thing is that the code produce valid results for valid input data. Test your code carefully. Hint: using the % operator may be the key to success. Test DataSample input:121759 Expected output: 13:16 Sample input:2358642 Expected output: 10:40 Sample input:012939 Expected output: 1:0
Java !! OverviewIn this task, you should start from the images GuessTheNumber.java output. The purpose is i.a. to learn how to use different control flow constructions and how we create random numbers within certain intervals by using the Math class.TaskBased on the images GuessTheNumber output and extend its functionality as below:• The program should ask the user within which interval the random numbers should be. I.e. the program should ask for the minimum value and the maximum value the random number can be between (inclusive). It is ok to assume that no negative numbers are used and that the user first writes the lowest and then the highest.• If the user guesses a number that is outside the range, the program will print the valid range.• If the user guesses incorrectly, but within the range, the program should print if the guessed value is higher or lower than the hidden number.• If the user guesses correctly, the program should print out how many guesses were required.• If the…
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…
Please revise this code so that the outputs are correct. Current it’s flagging a syntax error. See screen shot. Also view the lab ( 2nd ) screen shot. Please use both inputs to produce both out outputs. 1st input: Testit test 1st output: Unsuccessful login attempt! Try again – you have four times left! 2nd input: Test Test1234 Second output: Successful login! Current code needs amended: #class Login class Login: #__init__ def __init__(self): #initializing login_name as none self.login_name = 'none' #initializing login_password as none self.login_password = 'none' #check_credentials() def check_credentials(self, user_login, user_passwd): #initializing simlogin as 'Test' simlogin = 'Test' #initializing simpass as 'Test' simpass = 'test1234' #if user sent the correct credentials if user_login == simlogin and user_passwd == simpass: #print "Successful…
Design a window interface with a frame that has any light shade as background color . It should have three text fields , four radio buttons , and a label (for the equality sign,) as follows. Write a program such that if the user enters two integers on the text fields and click on any radio buttons the result of the operations appear in the third text field. The result of division is usually a non-integer and it should be handled correctly . Show the use of try-catch block. You must handle these situations and show a message dialogue box with appropriate message: 1) Non integer inputs on one or both text fields.2) No input in one or both text fields.3) Division by zero. Note that, there is no command button on this interface.Name your class as Main.
Create a card game in which the dealer shuffles the deck and deals 13 cards to the player. The player sorts her hand and says whether it includes the King of Hearts. Repeat 4 times so all the cards are dealt eventually. Internally, the player should return true or false without writing to the console. In response, the dealer should write on the console, "You won!" or "You loose again."
Write a program that animates a pendulum swinging,as shown in Figure . Press the up arrow key to increase the speed, and thedown arrow key to decrease it. Press the S key to stop animation of and the Rkey to resume it.
my homework problem Complete the code in the Practice class such that each time the user clicks the SUM button, the sum of the two valid integers will be shown in the lower right corner of the window (leave the user's input in the text fields). Here is a before and after view of the graphical user interface when the SUM button is clicked for the first time. 123 456 123 456 SUM SUM 579 import javax.swing.*; import java.awt.*; import java.awt.event.*; public class Practice { public static void main(String[] args) { JFrame frame = new JFrame("Add 2"); frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE); SumPanel panel = new SumPanel(); frame.getContentPane().add(panel); frame.setSize(140,80); frame.setVisible(true); } } class SumPanel extends JPanel { private JTextField op1Field; private JTextField op2Field; private JButton sumButton; private JLabel sumLabel; public SumPanel() { //Step 1; set up the layout setLayout(new GridLayout(2,2,4,4)); op1Field = new JTextField(); op2Field = new…
For activities with output like below, your output's whitespace (newlines or spaces) must match exactly. See this note. Write code that outputs variable num_baths as follows. End with a newline. Ex: If the input is 3, then the output is: Baths: 3
CHALLENGE ACTIVITY 5.2.2: Basic while loop with user input. Write an expression that executes the loop body as long as the user enters a non-negative number.Note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds and report "Program end never reached." The system doesn't print the test case that caused the reported message.Sample outputs with inputs: 9 5 2 -1 Body Body Body Done. Use Python, please.