Using System; using System. Io; namespace

using System;
using System.IO;

namespace Text_2
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s,a=null;int i,n;
            Console.Write("Fayl nomi kiriting: ");
            s=Console.ReadLine();
            Console.Write("n=");
            n=int.Parse(Console.ReadLine());
            StreamWriter b=File.AppendText(@"d:\"+s);
            for (i=0;i            {
                a+=(char)('a'+i);b.WriteLine(a);
            }
            b.Close();
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 3. Fayl nomi va natural son berilgan . Yangi matnli fayl hosil qilinsin, uni ta satriga uzunligi ga teng bo’lib quyidagicha yozilsin: satriga dastlabki ta kata lotin harfi va o’ng tominiga “*” bilan to’ldirilsin. Masalan, uchun fayl satrlari quyidagicha bo’lishi kerak: “A***”, “AB**”, “ABC*”, “ABCD”

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_3
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s,a;int i,n;
            Console.Write("Fayl nomi kiriting: ");
            s=Console.ReadLine();
            Console.Write("n=");
            n=int.Parse(Console.ReadLine());
            StreamWriter b=File.AppendText(@"d:\"+s);
            for (i=0;i            {
                a=null;for (int j=0;jif (j<=i) a+=(char)('A'+j);
                else a+="*";b.WriteLine(a);
            }
            b.Close();
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 4. Matnli fayl berilgan. Undagi satrlar va simvollar sonini chiqarish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_4
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s;int i,n=0;
            Console.Write("Fayl nomi kiriting: ");
            s=Console.ReadLine();
            string [] a=File.ReadAllLines(@"d:\"+s);
            for (i=0;i            Console.WriteLine("Satrlar soni: {0}\nBelgilar soni: {1}",a.Length,n);
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 5. satr va matnli fayl berilgan. Fayl oxiriga satrni qo’shish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_5
{
    class Program
    {
        public static void Main(string[] args)
        {
            string a,s;int i,n=0;
            Console.Write("Fayl nomi kiriting: ");
            a=Console.ReadLine();
            Console.Write("Satr kiriting: ");
            s=Console.ReadLine();
            File.AppendAllText(@"d:\"+a,s);
            Console.WriteLine(File.ReadAllText(@"d:\"+a));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 6. 2 ta matnli fayl berilgan. birinchi fayl oxiriga ikkinchi faylni qo’shish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_6
{
    class Program
    {
        public static void Main(string[] args)
        {
            string a,s;
            Console.Write("1-fayl nomini kiriting: ");
            a=Console.ReadLine();
            Console.Write("2-fayl nomini kiriting: ");
            s=Console.ReadLine();File.AppendAllText(@"d:\"+a,"\n");
            File.AppendAllLines(@"d:\"+a,File.ReadAllLines(@"d:\"+s));
            Console.WriteLine(File.ReadAllText(@"d:\"+a));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 7. satr va matnli fayl berilgan. Fayl boshiga satrni qo’shish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_7
{
    class Program
    {
        public static void Main(string[] args)
        {
            string a,s;
            Console.Write("Fayl nomini kiriting: ");
            a=Console.ReadLine();
            Console.Write("Satr kiriting: ");
            s=Console.ReadLine();
            string [] b=File.ReadAllLines(@"d:\"+a);
            File.WriteAllText(@"d:\"+a,s+"\n");
            File.AppendAllLines(@"d:\"+a,b);
            Console.WriteLine(File.ReadAllText(@"d:\"+a));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 8. 2 ta matnli fayl berilgan. Birinchi fayl boshiga ikkinchi faylni qo’shish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_8
{
    class Program
    {
        public static void Main(string[] args)
        {
            string a,s;
            Console.Write("1-fayl nomini kiriting: ");
            a=Console.ReadLine();
            Console.Write("2-fayl nomini kiriting: ");
            s=Console.ReadLine();
            string [] b=File.ReadAllLines(@"d:\"+a);
            File.WriteAllLines(@"d:\"+a,File.ReadAllLines(@"d:\"+s));
            File.AppendAllLines(@"d:\"+a,b);
            Console.WriteLine(File.ReadAllText(@"d:\"+a));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 9. natural son va matnli fayl berilgan. Faylning - nomerli satri oldidan bo’sh satr qo’shish dasturi tuzilsin. Agar bunday nomerli satr bo’lmasa fayl o’zgarishsiz qolsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_9
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s;int i,j,k;
            Console.Write("Natural son kiriting: ");
            k=int.Parse(Console.ReadLine());
            Console.Write("Fayl nomini kiriting: ");
            s=Console.ReadLine();
            string [] b=File.ReadAllLines(@"d:\"+s);
            string [] a=new string[b.Length+1];
            if (b.Length>k) 
            {
                for (j=0,i=0;i<=b.Length;i++,j++) 
                {a[i]=b[j];if (i==k-1) {i++;a[i]=null;}}
            }
            File.WriteAllLines(@"d:\"+s,a);
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 10. natural son va matnli fayl berilgan. Faylning - nomerli satrdan keyin bo’sh satr qo’shish dasturi tuzilsin. Agar bunday nomerli satr bo’lmasa fayl o’zgarishsiz qolsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_10
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s;int i,j,k;
            Console.Write("Natural son kiriting: ");
            k=int.Parse(Console.ReadLine());
            Console.Write("Fayl nomini kiriting: ");
            s=Console.ReadLine();
            string [] b=File.ReadAllLines(@"d:\"+s);
            string [] a=new string[b.Length+1];
            if (b.Length>k) 
            {
                for (j=0,i=0;i<=b.Length;i++,j++) 
                {a[i]=b[j];if (i==k) {i++;a[i]=null;}}
                File.WriteAllLines(@"d:\"+s,a);
            }
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 11. Matnli fayl berilgan. Undagi barcha bo’sh satrlarni ikkilantirish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_11
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s;int i;
            Console.Write("Fayl nomini kiriting: ");
            s=Console.ReadLine();
            string [] b=File.ReadAllLines(@"d:\"+s);
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            for (i=0;i            {
                if (b[i]=="") b[i]="\n"+b[i];
            }
            File.WriteAllLines(@"d:\"+s,b);
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 12. satr va matnli fayl berilgan. Undagi barcha bo’sh satrlarni o’rniga satrni yozish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_12
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s,S;int i;
            Console.Write("Fayl nomini kiriting: ");
            S=Console.ReadLine();
            Console.Write("Satr kiriting: ");
            s=Console.ReadLine();
            string [] b=File.ReadAllLines(@"d:\"+S);
            Console.WriteLine(File.ReadAllText(@"d:\"+S));
            for (i=0;i            {
                if (b[i]=="") b[i]=s;
            }
            File.WriteAllLines(@"d:\"+S,b);
            Console.WriteLine(File.ReadAllText(@"d:\"+S));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 13. Bo’sh bo’lmagan matnli fayl berilgan. Undagi birinchi satrni o’chirish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_13
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s;int i;
            Console.Write("Fayl nomini kiriting: ");
            s=Console.ReadLine();
            string [] b=File.ReadAllLines(@"d:\"+s);
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            string [] a=new string[b.Length-1];
            for (i=1;i            File.WriteAllLines(@"d:\"+s,a);
            Console.WriteLine("Natija:\n"+File.ReadAllText(@"d:\"+s));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 14. Bo’sh bo’lmagan matnli fayl berilgan. Undagi oxirgi satrni o’chirish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_14
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s;int i;
            Console.Write("Fayl nomini kiriting: ");
            s=Console.ReadLine();
            string [] b=File.ReadAllLines(@"d:\"+s);
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            string [] a=new string[b.Length-1];
            for (i=0;i            File.WriteAllLines(@"d:\"+s,a);
            Console.WriteLine("\nNatija:\n"+File.ReadAllText(@"d:\"+s));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 15. natural son va matnli fayl berilgan. Undagi nomerli satrini o’chirish dasturi tuzilsin. Agar faylda nomerli satr bo’lmasa fayl o’zgarishsiz qolsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_15
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s;int i,k,j=0;
            Console.Write("Fayl nomini kiriting: ");
            s=Console.ReadLine();
            Console.Write("Natural son kiriting: ");
            k=int.Parse(Console.ReadLine());
            string [] b=File.ReadAllLines(@"d:\"+s);
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            if (k<=b.Length)
            {
               string [] a=new string[b.Length-1];
               for (i=0;iif (k!=i+1) {a[j]=b[i];j++;}
               File.WriteAllLines(@"d:\"+s,a);  
            }
            Console.WriteLine("\nNatija:\n"+File.ReadAllText(@"d:\"+s));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 16. Matnli fayl berilgan. Undagi barcha bo’sh satrlarni o’chirish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_16
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s;int i,j=0;
            Console.Write("Fayl nomini kiriting: ");
            s=Console.ReadLine();
            string [] b=File.ReadAllLines(@"d:\"+s);
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            string [] a=new string[b.Length-1];
            for (i=0;iif (b[i]!="") {a[j]=b[i];j++;}
            File.WriteAllLines(@"d:\"+s,a);  
            Console.WriteLine("\nNatija:\n"+File.ReadAllText(@"d:\"+s));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 17. 2 ta matnli fayl berilgan. Birinchi faylning har bir satr oxiridan ikkinchi faylning mos satrlarini qo’shish dasturi tuzilsin. Agar birinchi fayl satlari soni ikkinchisidan katta bo’lsa, qo;gan satrlari o’zgarishsiz qolsin.

Dasturning C# dagi ko’rinishi:

using System;
using System.IO;

namespace Text_17
{
    class Program
    {
        public static void Main(string[] args)
        {
            string s,S;int i;
            Console.Write("1-fayl nomini kiriting: ");
            s=Console.ReadLine();
            Console.Write("2-fayl nomini kiriting: ");
            S=Console.ReadLine();
            string [] b=File.ReadAllLines(@"d:\"+s);
            Console.WriteLine(File.ReadAllText(@"d:\"+s));
            string [] a=File.ReadAllLines(@"d:\"+S);
            Console.WriteLine(File.ReadAllText(@"d:\"+S));
            for (i=0;i            File.WriteAllLines(@"d:\"+s,b);  
            Console.WriteLine("\nNatija:\n"+File.ReadAllText(@"d:\"+s));
            Console.ReadKey(true);
        }
    }
}

Natija:

Text 18. natural son va matnli fayl berilgan. Faylning har bir satridan ta belgi o’chirilsin(agar satrning uzunligi kdan kichik bo’lsa satrning hammasi o’shirilsin).

Dasturning C# dagi ko’rinishi:

Natija:

Text 19. Matnli fayl berilgan. Undagi barcha katta haflrni kichigiga, kichigini esa kattasiga almashtirish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

Natija:

Text 20. Matnli fayl berilgan. Undagi barcha ketma-ket ketlgan probellarni bitta probelga almashtirish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

Natija:

Text 21. Matnli satrlar soni 3 tadan ko’p bo’lgan fayl berilgan. Undan oxirgi 3 ta satrini o’chirish dasuri tuzilsin.

Dasturning C# dagi ko’rinishi:

Natija:

Text 22. naural son va matnli satrlar soni tadan ko’p bo’lgan fayl berilgan. Undan oxirgi ta satrini o’chirish dasuri tuzilsin.

Dasturning C# dagi ko’rinishi:

Natija:

Text 23. naural son va matnli satrlar soni tadan ko’p bo’lgan fayl berilgan. dastlabki faylning oxirgi ta satrini o’shida aks ettirgan yangi matnli fayl yaatilsin.

Dasturning C# dagi ko’rinishi:

Natija:

Text 24. Matnli fayl berilgan. Agar abzastlar bir-biridan bir yoki bir nechta bo’sh satrlar bilan ajratilgan bo’lsa, matndagi abzastlar sonini toppish dasturi tuzilsin.

Dasturning C# dagi ko’rinishi:

Natija:

Text 25. naural son va matnli fayl berilgan. Fayldan nomerli abzasini o’chirilsin, o’chirilgandan oldingi va keyingi bo’sh satrlar o’chirilmasin. Agar berilgan nomerli abzast bo’lmasa, fayl o’zgarishsiz qoldirilsin.

Dasturning C# dagi ko’rinishi:

Natija:

Text 26. Matnli fayl berilgan. Agar matndagi har bir abzastning birinchi satri 5 ta probel bilan boshlansa, ularning sonini toppish dasturi tuzilsin. Abzastlar o’rtasidagi bo’sh satrlar o’qilmasin.

Dasturning C# dagi ko’rinishi:

Natija:

Text 27. naural son va matnli fayl berilgan. Fayldan nomerli abzastini o’chirish dasturi tuzilsin. Abzastlar o’rtasidagi bo’sh satrlar o’qilmasin va o’chirilmasin.Agar matnda berilgan nomerli abzast bo’lmasa matn o’zgarishsiz qoldirilsin.

Dasturning C# dagi ko’rinishi:

Natija: