What is header file used for? Answer Choices: a. It is used to work with command line arguments. b. It is used to perform error checking in the program. c. It is used to include the functionality of variable number of arguments. d. It is not a valid header file.

What is header file used for? Answer Choices: a. It is used to work with command line arguments. b. It is used to perform error checking in the program. c. It is used to include the functionality of variable number of arguments. d. It is not a valid header file.

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 C++ code that asks the user's name, then the code will ask the user to guess the password of four digits. The code will give the user four chances to enter a number of two digits for each time. If the user entered one digit number the code will show the following message "wrong number, it should be between 10 to 99" as shown in the first picture. On the other hand, if the user entered two digits number , the code will compare it with the password, and it will show message as in picture two. (Every student has his /her own password) what is your name Mohammad Hi Mohammad you have four times to guess the password Mohammad make your guess pick any number of two digits (10 to 99) :5 wrong number, it should be btween 10 to 99 Process exited after 14.62 seconds with return value e Press any key to continue . what is your name Mohammad Hi Mohammad you have four times to guess the password Mohammad make your guess pick any number of two digits (10 to 99) :75 wrong guess! Mohammad make…
Hi, I need to solve this problem with C++ programming language using Visual Studio. Thank you.
Create a program on C++ that will enable the user to input first name, middle initial, and last name all in upper cases. with a 22-character limit that also includes spaces in between the names on the ID card. The following conditions/limitations are observed: A. If the first name, second name, middle initial, and last name exceed the character limit, use the first name initial and last name. B. If the last name’s character count is greater than or equal to the character limit, omit the second name and middle initial. Use the first name initial and truncate the last name to fit the character limit. C. The spaces in between the first name, second name, middle initial, and last name should not be included in the input. D. If there is no second name or middle initial, input 0. E. Omit any space in the last name.
Can you write the code in C++ please?
In java, without Arrays and using only String methods ( don't use String builder) // Question 17: In MS-DOS, a file name consists of up // to 8 characters (excluding '.', ':', backslask, '?', // and '*'), followed by an optional dot ('.' character) // and extension. The extension may contain zero to three // characters. For example, 1STFILE.TXT is a valid filename. // Filenames are case-blind. // // Write and test a method that takes // in a String, validates it as a valid MS-DOS file // name, appends the extensions ".TXT" if no extension // is given (that is, no '.' appears in FILENAME), converts // the name to uppercase, and returns the resulting string // to the calling method // If fileName ends with a dot, remove that dot and do not // append the default extension. If the name is invalid, // validFileName should return null. public String validFileName(String n) { }
I am unable to get the same output, The powerball number has to be align with the ticket number as well as the drawing along with the powerball random number as shown on the images. Kindey, would you please test all my code? Thank you. // Lotto Program#include <ctime>#include<iomanip>#include <cstdlib>#include<iostream>using namespace std; // Functions declaration void printMenu();int getSelect(int&);bool isUnique(int[], int, int);void printArray(int[], int);void selection2_output(int ticket[], int); //creating a fixed winner drawing int drawing[] = { 56,34,1,8,12 }; int main(){ int sel; printMenu(); getSelect(sel); return 0; } // Functions implementation // Menu function. void printMenu(){ cout << "\tWelcome to the Lottery\t\n"; cout << " ---------------------------------\n"; cout << " 1. Quick Pick\n"; cout << " 2. Pick Numbers\n"; cout << " 3. Exit\n";} //for selection1 outputvoid…
<?php /* NOTE: To see your output in the console, follow your output with a new line "\n" Write the code in PHP format /*13: Create a function named addTwo that accepts two parameters, $x and $y, and returns their sum. Create a variable named $myTotal and set it equal to the value returned from the function. Call the addTwo with the arguments 15 and 3. Output the value of $myTotal. */
I'm making an app that reads through an input text file and shows the number of alphanumerical characters, punctuation marks, spaces, etc in the text. The problem is I can't figure out how to make it print out the contents of the file. It is only printing the amount of characters in the title of the text.
Write a program in C++ that will print the number of grades (A, B, C, D and E) for 20 students inside a class. The user will be asked to key in the grade for each student and the total number of students achieving each grade will be displayed. The program will alert if wrong grade is inserted. Also the program will ask if the user wish to update the grade of specific student. Note: code with comments and output screenshot is must
Develop an object-oriented programming (OOP) application to create two clocks that display simultaneously and allow for user input using secure and efficient C++ code.1. Clock12: Time should be displayed in 12-hour format where the clock does not exceed 12:59:59.2. Clock24: Time should be displayed in 24-hour format where the clock does not exceed 23:59:59.3. Both clocks should display on the screen with the current time in the proper format.Any clue where to even start? Title: Clocks FlowchartTop of chart begins: “Clear Screen” “Display time in two formats”. Decision: “Button Pressed?” If “No” to button pressed, then to “Add 1 Second”. Then “Wait 1 second”. Then back to “Clear Screen”. If “Yes” to button pressed, then to “Display Menu”. Then “Read user input”. Then to Decision: “User input = exit?”. If “Yes” to exit, then endpoint: “End program”. If “No” to exit, then Decision: “Add Hour?” If “Yes” to hour, then “Add 1 hour.” Then back to “Clear screen”. If “No”…
24. What will the following code print out def func(x) : print (x) func (10) func (20) с. 10 20 d. Def X b. func a. 20 func func func