Halimova Dildora Hamidovnaning C# dasturlash tilida sinflar ierarxiyasini tashkil etish

3- misol. fayldan ma’lumotlarni bitta bitta belgi orqali o’qish va chiqarish. class Program {

[STAThread]

static void Main(string[] args) {

StreamReader uqish;

try

{

uqish = new StreamReader("d:\\textFile.txt");

}

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catch {

Console.WriteLine("Faylni ochishda xatolik bor");

Console.ReadKey();

return; }

int ch;

while ((ch = uqish.Read()) != (-1))

{

Console.WriteLine((char)ch);

}

Console.ReadKey();

} }

4- misol. Faylda ma’lumotlarni binar yozish va o’qish.

class Program {

static void Main(string[] args) {

FileStream a = new FileStream("d:\\a.txt", FileMode.CreateNew); BinaryWriter w = new BinaryWriter(a); //faylga ma'lumotlarni yozamiz

for (int i = 1; i < 20; i++) {

w.Write( (int) i); }

//faylni yopish

w.Close();

a = new FileStream("d:\\a.txt", FileMode.Open, FileAccess.Read); BinaryReader r = new BinaryReader(a);

• 
  fayldan ma’lumotlarni o’qiymiz for (int i = 1; i < 20; i++) {
  

Console.WriteLine(r.ReadInt32()); } r.Close();

Console.ReadKey();

} }

5- misol. fayldan ma’lumotlarni satrma - satr o’qish.

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class Program {

static void Main(string[] args){

FileStream a = new FileStream("d:\\textFile.txt", FileMode.Open,

FileAccess.Read);

StreamReader b = new StreamReader(a); string s;

while ((s = b.ReadLine()) != null){

Console.WriteLine(s); }

b.Close();

Console.ReadKey();

} }