StringBuilder in c#

the following code snippet displays the fun with stringbuilder class of c#

using System;

using System.Windows.Forms; 

using System.Text;

 

namespace StringBuilderStuff

{

class StringBuilderStuff

{

static void Main(string[] args)

{


StringBuilder sb1 = new StringBuilder();

StringBuilder sb2 = new StringBuilder("dsfghgh loves fffff!");

StringBuilder sb3 = new StringBuilder();

StringBuilder sb4 = new StringBuilder();

double cost = 18.95;

string output;

string formstr = "This {0} costs: {1:C}\n";
object[] objectArray = new object[2]; 

 

objectArray[0] = "Mercedes Benz";

objectArray[1] = 129000.99;

sb1.AppendFormat(formstr, objectArray);

output = "sb1 = ";

output += sb1.ToString();


output += "\nsb2 = " + sb2.ToString() +

"\nLength = " + sb2.Length +

"\nCapacity = " + sb2.Capacity;

sb2.EnsureCapacity(75);

output += "\nNew capacity = " + sb2.Capacity;


output += "\nNew girlfriend = " +
sb2.Replace("loves Adelheide", "now loves Irmtraut");sb2.Length = 7;
output += "\nNew length = " + sb2.Length + "\nsb1 = ";
for (int i = 0; i < sb2.Length; i++)
output += sb2[i];
output += "\n\n";
sb3.Append("You owe me ");
sb3.Append("$");
sb3.Append(cost);
output += "sb3 = ";
output += sb3.ToString() + '\n';
sb4.Insert(0, cost);
sb4.Insert(0, "$");
sb4.Insert(0, "You owe me ");
output += "sb4 = ";
output += sb4.ToString();
output += "\nSorry!\n";
sb4.Remove(14, 3);
output += sb4.ToString();
MessageBox.Show(output, "StringBuilder stuff",
MessageBoxButtons.OK);
}
}
}