Tell us about file extensions and why you think they're important. You can name three file extensions that you see in a random folder on your computer. You can also name the software programs that made them. Most of the file extensions should show up when you right-click on a file and choose properties from the pop-up menu (Microsoft Windows environment).

Tell us about file extensions and why you think they're important. You can name three file extensions that you see in a random folder on your computer. You can also name the software programs that made them. Most of the file extensions should show up when you right-click on a file and choose properties from the pop-up menu (Microsoft Windows environment).

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

Computer Science I got a question when I was creating a windowsForms application, I do have 2 dll files for language, and how to change the language in my application. Does anyone have such experience and could tell me how to do that? which method and which event i need to implement in my Form1.cs file
Develop the Music Player Experimental (MPX) as discussed in lecture.For Apple Developers you need only see the numbers align correctly, whereas Window developers use the Beep() API to hear your success. (Added a hard-coded version of the Little Lamb code.)Note Well: Your main function must be small Variables well-named Short comments Readable code Upload only the main.cpp file. I will use my own MXP file.
Any help is appreciated, I was able to complete the the first part about login but I am not sure how to load movies and ratings into table view Using GUI and Javafx Instructions: 1) Complete the login to read from the file and match with the correct username and password 2) Switch to the secondary screen 3) Load the Movies and the ratings associated with them to Table in the GUI This is what I have Log in class: import java.io.FileNotFoundException;import java.io.IOException;import java.util.ArrayList;import javafx.event.ActionEvent;import javafx.fxml.FXML;import javafx.scene.control.Button;import javafx.scene.control.Label;import javafx.scene.control.PasswordField;import javafx.scene.control.TextField; public class PrimaryController { public static int counter = 0; @FXML private TextField txtUserName; @FXML private Button btnLogin; @FXML private Label lblErrorMsg; @FXML private PasswordField txtPassword; private void switchToSecondary() throws…
Choose Create a new project and then select the template for C# Desktop app for the Windows Form App (.NET Framework). Be sure to use a location on your J: drive in the virtual desktop for the Location to store the files. Name the project "Lab4". Make sure the Place solution and project in the same directory checkbox is NOT selected. Visual Studio will create an empty Console application for you to start with. When you are finished with the lab, you should make a copy of this directory and copy to your flash drive or cloud storage, as well. Create and test a Windows Form application that make simple admission decisions for a hypothetical university based on the rules given below. The user enters a numeric high school grade point average (for example, 3.2) and an admission test score. Display the message “Accept” if the student meets either of the following requirements: A grade point average of 3.0 or higher and an admission test score of at least 60 A grade point average of less than…
Software Requirements: Latest version of NetBeans IDE Java Development Kit (JDK) 8 Procedure: 1. Create a folder named LastName_FirstName (ex. Reyes_Mark) in your local drive. 2. Create a new project named LabExer9. Set the project location to your own folder. 3. Draw a cartoon character using lines and shapes. Apply colors. Feel free to use the following methods: drawline () • drawRect () • fillRect() drawRoundRect() fillRoundRect() drawoval () fill0val() • drawarc() fillArc() drawPolygon() fillPolygon() copyArea() setPaint() fill() setStroke() draw()
Course Title : Operating SystemQuestion : How you will create new user using terminal in Ubuntu? Add screenshots of all steps for new user creation including terminal and Login page in Answer sheet. Every student has to create new user as of his/her arid number for example (18-arid-2929). Note: screenshots are mandatory.
Can you plaese do these questions for me Our users do not want to have to re-enter the price levels each time the app starts. Therefor, we need to save the price levels to a file on disk – called levelsFile - and populate the levelsList with the file’s items when the app starts. Also, every time the user manipulates the values in levelsList, levelsFile needs to be updated accordingly. The easiest way is not to update the file, but to simply override it (create a new file) with the new values in levelsList (each time the user manipulates items in the list). Two new methods need to be created in the PriceChecker class. They are readLevelsFromFile() and writeLevelsToFile(). And then the Main Code Section must also be updated to use these methods in the object. Note: The changes required to the Main Code Section are supplied on the next slide, but you need to complete the skeleton code of the two newly mentioned methods (supplied on subsequent slides). Add the purple code to your…
• Create a new java project in Eclipse and call it homework01. Inside the src folder, create a new java package called hw01. • All of your source code files will need to be placed in the hw01 file. Inside the src folder, create a new folder called files. • Your .csv files should go in files. NOTE: When working with the .csv file, your program must use a relative path to the .csv file, NOT an absolute path. If you do not know the difference between the two, you will need to review on your own and do some research as to what these mean. • An absolute path will only work on your system, and will not work on my system. This means I will not be able to correctly execute your program and you will receive a O for the assignment.
Open the command prompt, navigate to the directory in which you saved the image. You may use "cd" command for this purpose. Once in the directory, type "Python" + Enter to start python Now import the libraries that you need as follows: import numpy as np Import cv2 as cv Import matplotlib.pyplot as plt We read the image using the following lines: img = cv.imread("boat.png", cv.IMREAD_GRAYSCALE) print(img.shape) plt.imshow(img, cmap='gray') plt.show() The command "cv.imread" reads the image from disk into a numpy array. The previous lines read the image, print its size and display the image on screen. Now that we have the image read, we will do some basic image processing over the image. But first we need to convert the image from type "uint8" into"float32" and normalize it by 255. To do so, write the following: img = img.astype(np.float32)/255. In order to verify that the conversion is correct, display the image as above, you should see the same image. 1) Print the…
java You may NOT write this program as a GUI (Graphical User Interface). Write a program that reads a file named input.txt and writes a file that contains the same contents, but is named output.txt. The input file will contain more than one line when I test this and so should your output file. Do not use a path name when opening these files. This means the files should be located in the top level folder of the project. This would be the folder that contains the src folder, probably named FileCopy depending on what name you gave the project. Do not use a copy method that is supplied by Java. Your program must read the file line by line and write the file itself. I will test it with a file, input.txt do not write to input.txt* Your class name must be FileCopy.
Add three files of any type you choose—for example, word-processing documents,spreadsheets, or pictures.Create a new folder named test inside folder data and move your third file in this folder.Write an application that determines whether the first two files are located in the same folderas the third one. Test the program when the files are in the same folder (before moving thirdfile in test folder) and when they are not (after moving third file in test folder).Save the file as CompareFolders.java.Submit the data folder zipped along with CompareFolders.java.HINT: Use try/catch block, path class and its methods.Run a loop to check the name count.Output will look like: -Path for file1 is C:\Users\<your file path>\Lab9\TestData1.txtPath for file2 is C:\Users\<your file path>\Lab9\TestData2.txtPath for file3 is C:\Users\<your file path>\Lab9\TestData3.txtAll files are in the same folderPath for file1 is C:\Users\<your file path>\Lab9\TestData1.txtPath for file2 is…
Choose the correct option1. What is use of eof() ? a. Returns true if a file open for reading has reached the next character.b. Returns true if a file open for reading has reached the next word.c. Returns true if a file open for reading has reached the end.d. Returns true if a file open for reading has reached the middle. 2.The mechanism of giving special meaning to an operator is called ____ a. Objectb. Inheritancec. Function overloadingd. Operator Overloading 3) Local variables are stored in an area called ___________ a) Heapb) Permanent storage areac) Free memoryd) Stack