C# 스트링리더

[SerializableAttribute]
[ComVisibleAttribute(true)]
public class StringReader : TextReader

using System;
using System.IO;
namespace Program
{
class Check
{
//calling the main method
static void Main(string[] args)
{
//creating an instance of stringwriter method
StringWriter strng = new StringWriter();
//writing data using stringwriter instance
strng.WriteLine("Hello, welcome to StringReader class");
//closing the instance of stringwriter
strng.Close();
// Creating an instance of stringreader to which the stringwriter instance is passed
StringReader read = new StringReader(strng.ToString());
// data written using stringwriter is read using stringreader
while (read.Peek() > -1)
{
Console.WriteLine(read.ReadLine());
}
}
}
}

using System;
using System.IO;
using System.Text;
namespace Program
{
class Check
{
//calling the main method
static void Main(string[] args)
{
//Creating an instance of StringBuilder class
var readall = new StringBuilder();
//appending all the single statements into one through the instance of StringBuilder class
readall.AppendLine("Welcome to StringReader class.");
readall.AppendLine("Lets understand ReadToEnd() method.");
readall.AppendLine("This method displays all the statements right from the beginning.");
//creating an instance of StringReader class
var read = new StringReader(readall.ToString());
//calling the ReadToEnd() method using the instance of StringReader class
string tt = read.ReadToEnd();
Console.WriteLine(tt);
}
}
}

using System;
using System.IO;
namespace Program
{
class Check
{
//Calling the main method
static void Main(string[] args)
{
//A string variable holding a string of characters is defined
var tt = "Welcome to StringReader class.";
//an instance of the stringreader class is created
var read = new StringReader(tt);
//a counter is declared and initialized to zero
int count1 = 0;
//the occurrence of the character to be identified from the statement is assigned to a character variable
char ch = 'e';
//an integer variable is declared
int x;
//Read() method is called and checked if the control has not reached the end of the string or if the string do not exist
while ((x = read.Read()) != -1)
{
char ct = (char) x;
//if the character whose occurrence must be counted is same as the character in the statement while traversing through the statement, the counter is incremented by one
if (ct.Equals(ch))
{
count1++;
}
}
//finally the number of occurrences of the specified character is displayed
Console.WriteLine($"The number of '{ch}' characters in the given statement is {count1}");
}
}
}