C# Sharp Exercises: Create and read the last line of a file
C# Sharp File Handling: Exercise-12 with Solution
Write a program in C# Sharp to create and read the last line of a file.
Sample Solution:-
C# Sharp Code:
using System;
using System.IO;
class filexercise12
{
static void Main()
{
string fileName = @"mytest.txt";
string[] ArrLines ;
int n,i;
Console.Write("\n\n Create and read the last line of a file :\n");
Console.Write("-----------------------------------------------\n");
if (File.Exists(fileName))
{
File.Delete(fileName);
}
Console.Write(" Input number of lines to write in the file :");
n= Convert.ToInt32(Console.ReadLine());
ArrLines=new string[n];
Console.Write(" Input {0} strings below :\n",n);
for(i=0;i<n;i++)
{
Console.Write(" Input line {0} : ",i+1);
ArrLines[i] = Console.ReadLine();
}
System.IO.File.WriteAllLines(fileName, ArrLines);
Console.Write("\n The content of the last line of the file {0} is :\n",fileName);
if (File.Exists(fileName))
{
string[] lines = File.ReadAllLines(fileName);
Console.WriteLine(" {0}",lines[n-1]);
}
Console.WriteLine();
}
}
Sample Output:
Create and read the last line of a file : ----------------------------------------------- Input number of lines to write in the file :2 Input 2 strings below : Input line 1 : this is 1st line Input line 2 : this is 2nd line The content of the last line of the file mytest.txt is : this is 2nd line
Flowchart :
C# Sharp Code Editor:
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