Write a program that reads from the user a character ('q' or 'c'). • i the character is 'c', the program reads from the user the radius r of a circle and prints its area. • If the user enters 'q', the program asks the user to enter the length and width of a quadnilateral. We assume the quadrilateral is either a square or rectangle. You should print if the quadrilateral is square or rectangle. • Otherwise, it prints “Wrong character" PS: Use the following formulas: area of circle=3.14*r Sample Run1: Enter a character (q or c): q Enter the Length and Width: 80 150 It is a rectangle Sample Run2: Enter a character (q or c): q Enter the Length and Width: 80 80 It is a square Sample Run3: Enter a character (q or c): c Enter the radius: 2 The area of the circle is 12.56 Sample Run4: Enter a character (q or c): d Wrong character

Write a program that reads from the user a character ('q' or 'c'). • i the character is 'c', the program reads from the user the radius r of a circle and prints its area. • If the user enters 'q', the program asks the user to enter the length and width of a quadnilateral. We assume the quadrilateral is either a square or rectangle. You should print if the quadrilateral is square or rectangle. • Otherwise, it prints “Wrong character" PS: Use the following formulas: area of circle=3.14*r Sample Run1: Enter a character (q or c): q Enter the Length and Width: 80 150 It is a rectangle Sample Run2: Enter a character (q or c): q Enter the Length and Width: 80 80 It is a square Sample Run3: Enter a character (q or c): c Enter the radius: 2 The area of the circle is 12.56 Sample Run4: Enter a character (q or c): d Wrong character

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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Write a program that reads from the user a character (*q' or 'c'). If the character is 'c', the program reads from the user the radius r of a circle and prints its area. If the user enters 'q', the program asks the user to enter the length and width of a quadrilateral. We assume the quadrilateral is either a square or rectangle. You should print if the quadrilateral is square or rectangle. Otherwise, it prints "Wrong character" PS: Use the following formulas : area of circle=3.14*r? I
Write a program that asks the user to enter the three sides (a, b and c) of a triangle as double values. Assume that the user will enter three valid sides that can form a triangle, your program should perform the following tasks: If the three sides are equal, the program displays "Equilateral" on the screen. • If any two sides are equal, the program displays "Isosceles". If the sum of the squares of any two sides is equal to the square of the third one, for example (3? + 42 = 5) then the program displays "Right" • Otherwise, the program displays "Scalene" as well as the perimeter of the triangle which is the sum of all three sides. Sample Run 1: Enter three sides: 4.2 4 5 Sample Run 2: Enter three sides: 111 Equilateral Scalene Perimeter of triangle is: 13.2 Sample Run 3: Enter three sides: 3 4 5 Right Sample Run 4: Enter three sides: 8.2 5 8.2 Isosceles 64°F
Write a program that asks the user for two positive integers between 2 and 10 to use for the length and width of a rectangle. If the numbers are different, the larger of the two numbers should be used for the length and the smaller for the width. The program should then display a rectangle of this size on the screen using the character ‘X’. For example, if the user enters either 2 5 or 5 2, the program should display the following:
In this assignment you will write a program that shows the valid moves of chess pieces. Your program will draw a board with 64 squares using the traditional layout, next ask the user to choose a move, and then, depending on the user's choice, redraw the board with the selected chess piece and its valid moves. Please see the examples of valid moves of chess pieces and the traditional chess board layout below:
You have been asked to write a program to play rock-paper-scissors. Your program will ask the user to input a number 0, 1, or 2 to denote rock, paper, and scissors respectively. Your program will then randomly generate a number 0, 1, or 2 to denote the computer’s hand. The rules for the game are: •A scissor can cut paper. •A rock can knock a scissor. •A piece of paper can wrap a rock. Let the game run continuously until either the user or the computer wins 3 times, displaying the outcome of each hand. At the end of the game, display a message indicating whether the user or the computer wins Helpful Hint: import random player2= random.randint(0, 2)
1. Write a pyrhon program that prints out a classic hangman stick figure. The program should ask the user to enter a number from 1-6 and the corresponding hangman should be printed. The value the user inputs corresponds to the number of incorrect guesses in a real hangman game and so the completeness of the hangman will correspond to the number of ‘incorrect guesses’ inputted by the user (e.g., if the user enters 1, then only the head of the hangman will be printed; full example below). Example:Enter a number from 1-6: 1O Enter a number from 1-6: 2O|Enter a number from 1-6: 3O\||Enter a number from 1-6: 4O\|/|Enter a number from 1-6: 5O\|/|/Enter a number from 1-6: 6O\|/|/ \ 2. Modify your program from problem 1 so that the user input is checked to be a validsingle digit (1-6) before printing the corresponding hangman. If the input is not valid, theninstead of a hangman the following message should be printed “Invalid input: you must enter asingle number from 1-6.” Example:Enter a…
Part 1: Complete the survey. Part 2: Peek-a-boo is a fun game that little kids like to play. To simulate this game on the computer, write a program that will generate a random number between 1 and 4. Then, will print to the screen the animal name associated to that number. The animal names used will be: pig when a 1 is generated cow when a 2 is generated chicken when a 3 is generated horse when a 4 is generated If your program generates a 3, the output will be: chicken The player will then enter a 1 if they would like to play again or anything else to exit the program. If the player enters "1 1 1 0", the output will be: horse chicken cow horse For coding simplicity, follow each output animal by a space, even the last one. Hint: To make testing easier, seed your random number generator with 0.
Write a program that lets the user guess whether a randomly generated integer would be even or odd. The program randomly generates an inte- ger and divides it by 2. The integer is even if the remainder is 0, otherwise odd. The program prompts the user to enter a guess and reports whether the guess is correct or incorrect.
The area of a rectangle is the rectangle’s length times its width. Write a program that asks for the length and width of two rectangles. The program should tell the user which rectangle has the greater area, the lesser area or if the areas are the same. Allow the user to continue to ask for measurements of two rectangles until he/she wishes to quit.
For My Java class, this being my first programming class, I have been asked to complete the following to learn Loops. Next is arrays but I was hoping to get help understanding this first. Thanks 1-Design a program that asks the user to enter a series of positive numbers. The user should enter a negative number to signal the end of the series. After all the positive numbers have been entered, the program should display their sum. 2-The distance a vehicle travels can be calculated as follows: Distance = Speed x Time Design a program that asks a user for the speed of a vehicle in miles per hour and how many hours it has travelled (Assume the two values are integers). Your program should then use a loop to display the distance the vehicle has traveled for each hour of that time period. (For example, entering 50 mph and 4 hours should produce output like: Hour 1: 50 miles, Hour 2: 100 miles, Hour 3: 150 miles, Hour 4: 200 miles. ) 3-Design a program that uses nested loops to display a…
java Write a program that prompts the user to enter a point (x, y) and checks whether the point is within the rectangle centered at (0, 0) with width 10 and height 5. For example, (2, 2) is inside the rectangle and (6, 4) is outside the rectangle, as shown in the Figure. (Hint: A point is in the rectangle if its horizontal distance to (0, 0) is less than or equal to 10 / 2 and its vertical distance to (0, 0) is less than or equal to 5 / 2.) Here are sample runs of the program: Sample 1: Enter a point with two coordinates: 2 2 Point (2.0, 2.0) is in the rectangle Sample 2: Enter a point with two coordinates: 6 4 Point (6.0, 4.0) is not in the rectangle Analysis: (Describe the problem including input and output in your own words.) Design: (Describe the major steps for solving the problem.) Coding: (Go over your code step by step) Testing: (Describe how you test this program). In other words run your code with sample outputs.
f. A laborant in a laboratory does a number of antigen tests in one day. Write a program that simulates the number of antigen tests done in a day in a laboratory, displays the number of positives and negatives, and calculates the % of positives in one day. Your program needs to first generate a random number that will show the number of tests done in a day. One laboratory in a day cannot do more than 100 tests and less than 1 (they do at least one). Then for each of the tests, your program needs to generate a random number to show whether they are positive or negative. In order to write this program, you need to have the following three functions used by the main function: test result (void): This function generates a test result. It should randomly return either one or zero. 1 means positive test result and 0 means negative test result. float positive percentage (int,int) : This function takes the total number of positives and the total number of tests and returns the % of positives.…