Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Part 1: In C++, Write a program that asks the user for a positive integer value. The program should use a loop to get the sum of all integers from 1 up to the number entered. For example, if the user enters 50, the loop will find the sum of 1,2,3,....,50. Input validation:do not accept a negative starting number. Part 2: Write every cout statement in part 1 into a file called "User_data.txt". The file should NOT delete any previous data. The file should show the current date and time everytiime the user is asked for a new integer to enter.
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- True or False: C++ uses negative values to represent "False" and positive values to represent "True". It is possible that the body of a while loop may not execute at all.arrow_forwardSample Run 2: Enter the symbol to draw the shapes: # Enter the width of the shape: 4 Enter the height of the shape: 6 #### ## ### ## Save the file as cla14.py by clicking on File on the menu bar, then click on "Save as .". Type in cla14.py as the file name in the save as dialog box. • Run your program: Hit function key to execute the program. Alternatively you can click on Run on the menu bar and select "Run Module". • If you have any errors, fix them, save the changes in the file window, and re-run the program ()arrow_forwardIn For loop for (statement 1; statement 2; statement 3) { // code block to be executed } The first statement is executed ?! One Time Two Times Every Time Not executedarrow_forward
- qerwr2arrow_forwardcreate a new file in c++. In this lab, you will add some more functionality to the program. Use loops to keep running the program until the user chooses the exit condition (X or x). When dividing, use a loop to validate user input, making sure the denominator (second number) is not zero. If the user enters a 0 for the second number, display an error message and ask them again. A) Add two numbersB) Subtract two numbersC) Multiply two numbersD) Divide two numbersX) Exit program The program should: display a "hello" message before presenting the menu display the menu prompt user for selection accept either uppercase or lowercase for selection display error message if invalid selection is made (example: E) display the selection back to the user prompt for two numbers perform the operation and display the results use loop for input validation of second number during division display error message for division when second number is 0 after displaying result, use loop to...arrow_forward// Flowers.cpp - This program reads names of flowers and whether they are grown in shade or sun from an input // file and prints the information to the user's screen. // Input: flowers.dat. // Output: Names of flowers and the words sun or shade. #include <fstream> #include <iostream> #include <string> using namespace std; int main() { // Declare variables here // Open input file // Write while loop that reads records from file. fin >> flowerName; // Print flower name using the following format //cout << var << " grows in the " << var2 << endl; fin.close(); return 0; } // End of main functionarrow_forward
- Q2: Write a c++ program that reads a text file that has a poem written in it. (Write down the poem yourself in a text file manually). Your program should display that poem and count a total number of lines in the file.arrow_forwardSummary In this lab, you write a while loop that uses a sentinel value to control a loop in a Python program. You also write the statements that make up the body of the loop. Each theater patron enters a value from 0 to 4 indicating the number of stars that the patron awards to the Guide’s featured movie of the week. The program executes continuously until the theater manager enters a negative number to quit. Instructions Make sure the file MovieGuide.py is selected and open. Write thewhile loop using a sentinel value to control the loop, and also write the statements that make up the body of the loop. Execute the program by clicking the Run button at the bottom of the screen. Input the following as star ratings: 0, 3, 4, 4, 1, 1, 2, -1 must be written with this code: """ MovieGuide.py This program allows each theater patron to enter a value from 0 to 4 indicating the number of stars that the patron awards to the Guide's featured movie of the week. The program executes...arrow_forward// Flowers.cpp - This program reads names of flowers and whether they are grown in shade or sun from an input // file and prints the information to the user's screen. // Input: flowers.dat. // Output: Names of flowers and the words sun or shade. #include <fstream> #include <iostream> #include <string> using namespace std; int main() { // Declare variables here // Open input file // Write while loop that reads records from file. fin >> flowerName; // Print flower name using the following format //cout << var << " grows in the " << var2 << endl; fin.close(); return 0; } // End of main functionarrow_forward
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