Answered: Make a list of all you know about…

Engineering

Computer Science

Make a list of all you know about 'Creating Variables.'

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

You've decided to test the wifi speed in the classroom at the beginning of every lecture. Create a program that will tell you if the wifi speed over the past 3 classes has increased, decreased, or neither. If the wifi speeds are sorted and increasing, then print out "The wifi is getting faster!". If the wifi speeds are sorted and decreasing, then print out "The wifi is getting slower!". If the wifi speeds are unsorted or if two or more speeds are the same, then print "The wifi speed is changing unpredictably." The user should input 3 non-negative numbers (double) separated by spaces. Sample runs: Enter wifi speeds over the last 3 classes: 162 180 225 The wifi is getting faster! Enter wifi speeds over the last 3 classes: 37.5 21.2 19.9 The wifi is getting slower! Enter wifi speeds over the last 3 classes: 162 135.3 225 The wifi speed is changing unpredictably. Ensure you are doing basic input validation, output Please enter a valid input. if the user inputs a negative wifi speed. Make…
You are responsible for adding the appropriate testing code to your main. a. The getValedictorian method returns the valedictorian of the class, that is the student with the highest grade point average. Implement this new method. b. The getHonorsPercent method returns the percentage of students in the class who are in the honors program. Use 3.75 as the cutoff GPA. Implement this method. Also print the list of students, by using the isHonor method, in the Honors program. c. An alternate implementation for the School class is being considered, in which the students are stored in an ArrayList instead of an array. Show how the declaration of the data field students would look in this alternate design. MAIN CLASS: import java.util.ArrayList; public class Main { public static void main(String[] args) { System.out.println("Unit07Project2 by Your Name"); System.out.println(); int size = 10; School onw = new School(size); /* Add the code…
The term "for construct" refers to a type of loop that can iterate over multiple items. So long as there are objects to process, it will continue to operate. Is this a true or false statement?
For this project, you will import the **time** and **random** modules. You will also install the **matplotlib** package and import from it the **pyplot** module. You will also import the wraps() function from the functools module for use in your decorator.Use the **time** module to write a decorator function named sort_timer that times how many seconds it takes the decorated function to run. Since sort functions don't need to return anything, have the decorator's wrapper function return that elapsed time.To get the current time, call time.perf_counter(). Subtracting the begin time from the end time will give you the elapsed time in seconds.Copy the code for bubble sort and insertion sort from Module 4 and decorate them with sort_timer. def bubble_sort(a_list): """ Sorts a_list in ascending order """ for pass_num in range(len(a_list) - 1): for index in range(len(a_list) - 1 - pass_num): if a_list[index] > a_list[index + 1]:…
IN Python Code Only Jessie has a lot of cooking with her (N). He often remembered the first few letters of the recipe and forgot the others. Like all great chefs, Jessie re-calculated the recipes according to the priority. So, looking at the list of recipes and priorities answers Jessie's questions. Response from Jessie: Giving the first few letters of the recipe; you have to print the perfect recipe in the most important way. Note: Every recipe has a unique value. Input 1 flour-with-eggs 100 1 G Output 0
Hello, This is part of my hangman simulation in C++. If you compile and run it and type "Easy," the code should run. If you run it though, the body of the hangman doesn't align when you guess wrong. Could you help me with that and implement an if statement to repeat the program if user wants to play again? #include <iostream> #include <cstdlib> #include <ctime> #include <string> #include <iomanip>using namespace std; const int MAX_TRIES = 5;char answer; int letterFill(char, string, string&); int main() { string name; char letter; int num_of_wrong_guesses = 0; string word; srand(time(NULL)); // ONLY NEED THIS ONCE! // welcome the user cout << "\n\nWelcome to hangman!! Guess a fruit that comes into your mind."; // Ask user for for Easy, Average, Hard string level; cout << "\nChoose a LEVEL(E - Easy, A - Average, H - Hard):" << endl; cin >> level; // compare level if (level == "Easy") {//put all the string inside…
IN C++ Create a task that takes a series of card numbers and checks that their total value is more than 21. If the amount is more than 21, return the truth and if the amount is less than or equal to 21, return false. My card prices are as follows: 2-10 their number. J-K (face cards) are counted as 10. Aces counts as 1 or 11 - play save, so if you give the ace an 11-point make you lose and 1 let you win, then go with 1. Examples overTwentyOne (["2", "8", "J"]) – lie overTwentyOne (["A", "J", "K"]) – - lie overTwentyOne (["5", "5", "3", "9"]) - true
When do we encapsulate?
A for construct is an iterative loop that processes a list of items. As a consequence, it continues to process items as long as there are things to process. Is this a true or false statement?
Help with code
Instructor note: This lab is part of the assignment for this chapter. This lab uses two Java files, LabProgram.java and SimpleCar.java. The SimpleCar class has been developed and provided to you already. You don't need to change anything in that class. Your job is to use the SimpleCar class to complete the specified tasks in the main() method of LabProgram.java Given two integers that represent the miles to drive forward and the miles to drive in reverse as user inputs, create a SimpleCar object that performs the following operations: Drives input number of miles forward Drives input number of miles in reverse Honks the horn Reports car status The SimpleCar class is found in the file SimpleCar.java. Ex: If the input is: 100 4 the output is: beep beep Car has driven: 96 miles
Create a variable containing the string “I hate Python” Turn it into a more positive string: “I love Python” using replace method and print the output Finally print out the middle letter of the new string using the len method (do not simply count the letters and print the letter without using the len() method!)