Practice Exercises C# Sharp - Learn to program with performing exercises C# Sharp

Practice Exercises C# Sharp

Learn to program with performing exercises C# Sharp

Reading a binay file (2 - GIF) - Practice Exercises C# Sharp
Practice Exercises C# Sharp4,55302940

Reading a binay file (2 - GIF) - Practice Exercises C# Sharp


Lesson 8:

File management


Exercise 8.13:

Reading a binay file (2 - GIF)


Objetive:

Create a C# program to check if a GIF image file seems to be correct.

It must see if the first four bytes are G, I, F, 8.

In case it seems correct, it must also display the GIF version (87 or 89), checking if the following byte is a 7 or a 9.


Source Code:


using System;
using System.IO;
public class GifFile
{
    public static void Main()
    {
        byte[] data = new byte[5];
        BinaryReader file = new BinaryReader(File.Open("test.gif", FileMode.Open));

        for (int i = 0; i < 5; i++)
            data[i] = file.ReadByte();

        file.Close();

        if (data[0] == Convert.ToByte('G') &&
        data[1] == Convert.ToByte('I') &&
        data[2] == Convert.ToByte('F') &&
        data[3] == Convert.ToByte('8'))

            Console.WriteLine("Its a GIF8" + data[4]);
        else
            Console.WriteLine("It not gif file");
    }
}
Exercisey 8.13

Share Now:







Privacy Policy:



Google uses associated advertising companies to serve ads when it visits our website. These companies may use the information they obtain from your visits to this and other websites (not including your name, address, email address, or phone number) to provide you with announcements about products and services that interest you. If you would like to learn more about this practice and know your options to prevent these companies from using this information. Click in... Privacy and Terms of Google.

Cookies

This site uses Google cookies to provide its services, to personalize advertisements and to analyze traffic. Google receives information about your use of this website. More information in... Privacy and Terms of Google.