C# Sharp Exercises: Count the number of lines in a file
C# Sharp File Handling: Exercise-15 with Solution
Write a program in C# Sharp to count the number of lines in a file.
Sample Solution:-
C# Sharp Code:
using System;
using System.IO;
using System.Text;
class filexercise3
{
public static void Main()
{
string fileName = @"mytest.txt";
int count;
try
{
// Delete the file if it exists.
if (File.Exists(fileName))
{
File.Delete(fileName);
}
Console.Write("\n\n Count the number of lines in a file :\n");
Console.Write("------------------------------------------\n");
// Create the file.
using (StreamWriter fileStr = File.CreateText(fileName))
{
fileStr.WriteLine(" test line 1");
fileStr.WriteLine(" test line 2");
fileStr.WriteLine(" Test line 3");
fileStr.WriteLine(" test line 4");
fileStr.WriteLine(" test line 5");
fileStr.WriteLine(" Test line 6");
}
using (StreamReader sr = File.OpenText(fileName))
{
string s = "";
count=0;
Console.WriteLine(" Here is the content of the file mytest.txt : ");
while ((s = sr.ReadLine()) != null)
{
Console.WriteLine(s);
count++;
}
Console.WriteLine("");
}
Console.Write(" The number of lines in the file {0} is : {1} \n\n",fileName,count);
}
catch (Exception MyExcep)
{
Console.WriteLine(MyExcep.ToString());
}
}
}
Sample Output:
Count the number of lines in a file : ------------------------------------------ Here is the content of the file mytest.txt : test line 1 test line 2 Test line 3 test line 4 test line 5 Test line 6 The number of lines in the file mytest.txt is : 6
Flowchart :
C# Sharp Code Editor:
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Previous:Write a program in C# Sharp to create and read last n number of lines of a file.
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