Which statements are true? Select three options. Functions can have one parameter. Functions can have many parameters. Functions must have a return value. Functions must have a parameter. Functions can have two parameters.

Which statements are true? Select three options. Functions can have one parameter. Functions can have many parameters. Functions must have a return value. Functions must have a parameter. Functions can have two parameters.

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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Change value of isMomHappy to true and run the code. Provide your source code and the output var isMomHappy = false; //promise var willIGetNewPhone = new Promise( function (resolve, reject) { if(isMomHappy){ var phone = { brand: 'samsung', color:'black' }; resolve(phone); } else { var reason = new Error('mom is not happy'); reject(reason); } } ); //call our promise var askMom = function() { willIGetNewPhone .then(function (fulfilled){ //yay, you got a new phone console.log(fulfilled); //output: {brand: 'sumsung', color: 'black' } }) .catch(function (error) { //oops, mom didnt buy it console.log(error.message); //output: 'mom is not happy' }); }; askMom();
!!!FIRST READ EVERYTHING WRITTEN BELOW AND IF YOU CAN DO IT ONLY THEN START AND NO PLAGIARISM!!! Only use C++ to do this task. And I will only give thumbs up if you do not plagiarize from another Chegg or internet source. Also only if you will follow all the below instructions 100%. Only write typed answer. No handwritten. Code must visibly shows the functions and class. Attach the screenshot of output and code must be 100% complete and correct. Write a Twitter class that sets the Twitter user first (who is to be followed) and lets the client add up to 5 followers, which will be stored in an array with a capacity of 5. These users/followers could be in the form of string or Profile but both must be of same type. (Note that the followers are not stored as users, but as strings or Profiles). At any time, your main program should be able to remove any user, x from following another user, y (i.e., x is no longer in the array of followers of y). You are free to design your program as you…
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Write a function named “endingWithSlashSlash” that accepts the same parameters as command line arguments (argc and argv). It returns true if at least one of the arguments have a “//” at the end and false otherwise. This function also returns the number of arguments that have “//” at the end. For example, “//” will return true and 1 “one// two three// four” will return true and 2 “one” will return false and 0 “one two” will return false and 0 Please note that for question #5, you cannot refer or use string class, string methods such length() or size() or any string function such as strlen(), strcmp or strstr(). Please use only array notation, pointer to character, and/or pointer arithmetic and make use of the fact that this is a C-string.
Hello, I need help with this: – AssignmentFollowing on the success of homework 2, your mother wants you to augment the tag sale price trackingprogram. In addition to storing the price of each item sold, she wants to store the name of the item sold.Create a class called TagSaleItem, with the following variables (properties) and Get/Set members(functions)Double itemPriceString itemNameAdd a textbox to your form to input the name of the item at the same time as the price.The previous program used an array to store a list of prices. It would be awesome if this program usedan array of objects to store a list of items… but we’ll get to that in a later assignment. For now theassignment is just to create a class and a single object and demonstrate how to use it (using the Get/Setmethods) Code for homework 2 that is referenced: Imports System.IO Public Class FrmMain Dim prices(0) As Double ' Array to store prices of items sold Dim totalSales As Double ' Total amount of money collected…
Help, I am making a elevator simulation using polymorphism. I am not sure to do now. Can you help me improve this code. Please if possible don't change what I have too much. Any help would be appreciated. My code is at the bottom, that's all I could think off. There are 4 types of passengers in the system:Standard: This is the most common type of passenger and has a request percentage of 70%. Standard passengers have no special requirements.VIP: This type of passenger has a request percentage of 10%. VIP passengers are given priority and are more likely to be picked up by express elevators.Freight: This type of passenger has a request percentage of 15%. Freight passengers have large items that need to be transported and are more likely to be picked up by freight elevators.Glass: This type of passenger has a request percentage of 5%. Glass passengers have fragile items that need to be transported and are more likely to be picked up by glass elevators. public abstract class Passenger {…
1. Look at the following proposed variable names -- which are legal? If you decide a name is NOT legal, please explain why it is not a suitable name for a variable. a) my Variable b) unknownVariableName c) long_name d) returnsthisvalue e) 2ndItemFirst
In this task, we’re going to be simulating an email message. Some of the logic hasbeen filled out for you in the email.py file.● Open the file called email.py.● Create a class definition for an Email which has four variables:has_been_read, email_contents, is_spam and from_address.● The constructor should initialise the sender’s email address.● The constructor should also initialise has_been_read and is_spam to false.● Create a function in this class called mark_as_read which should changehas_been_read to true.● Create a function in this class called mark_as_spam which should changeis_spam to true.● Create a list called inbox to store all emails (note that you can have a list ofobjects).● Then create the following methods:○ add_email - which takes in the contents and email address from thereceived email to make a new Email object.○ get_count - returns the number of messages in the store.○ get_email - returns the contents of an email in the list. For this, allowthe user to input an index…
Write a program in Python that simulates a bank. This is similar to what you did with your calculator program using functions. The customer's bank account should start out with a balance of $100.00 in the account (HINT: Balance = 100.0). The " Balance" variable should be a global variable. Provide the customer the ability to deposit money (Deposit), Withdraw money (Withdraw), and the ability to print out their balance (ShowBalance). Create a menu witht he above options that calls the respective function. Create functions for each of the tasks in your bank (deposit, withdraw, show balance). Your program should loop until the user decides to exit the program (HINT: Use 0 to exit the program like your calculator program). Make sure to design your Outline and Logic sections in a Word document. Upload your Outline and Logic document along with your Python code into this assignment when completed.
Any variable with more than one responsibility should be replaced with multiple variables, therefore, apply the following refactoring? Remove Middle Man Split Variable Extract Class Move Field
The Body Mass Index – BMI is a parameter used to measure the health status of an individual. Various BMI values depict how healthy or otherwise a person is. Mathematically BMI = weight ÷hight×hight Write a java program using either JOptionPane or Scanner to collect the following values of an individual: i. Name ii. Weight iii. Height Major Topic Getting user inputs B.) Compute the BMI of that individual Make the following decisions if: i. BMI < 18.5 is under weight ii. BMI >=18.5 but =25 but = 30 but = 40 Morbid Obesity d)Display the results of the individual