My C# (2), C# - rextester

Language: Layout:

//Rextester.Program.Main is the entry point for your code. Don't change it.
//Microsoft (R) Visual C# Compiler version 2.9.0.63208 (958f2354)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //modifying strings
            string testString = "Hello, my name is Fredy";
            
            //Replace can be used to replace words with others
            string resultString = testString.Replace("Fredy", "Hector");
            Console.WriteLine(resultString);
            Console.WriteLine(testString);
            
            //Replace can be used in a different way
            string resString2 = testString.Replace("e", "i");
            Console.WriteLine(resString2);
            
            //Remove
            string removeString = testString.Remove(17, 6);
            Console.WriteLine(removeString);
            
            //appending strings
            testString = testString + " and I am a CS major";
            Console.WriteLine(testString);
            
            StringBuilder mySB = new StringBuilder("Hello World", 20);
            Console.WriteLine(mySB);
            Console.WriteLine("mySB capacity is " + mySB.Capacity);
            
            //Methods
            //Append adds to the end of a stringBuilder
            
            mySB.Append(" is our first Program!");
            Console.WriteLine(mySB);
            Console.WriteLine("mySB capacity is " + mySB.Capacity);
            
            //Insert adds a string to a certain location using indexes
            mySB.Insert(24, " small");
            Console.WriteLine(mySB);
            
            //Remove removes a list of characters starting at certain location
            mySB.Remove(24, 6);
            Console.WriteLine(mySB);
            
            //Replace
            mySB.Replace("our", "my");
            Console.WriteLine(mySB);
            mySB.Replace("o", "z");
            Console.WriteLine(mySB);
            mySB.Replace("i", "NOT");
            Console.WriteLine(mySB);
            
            
            
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0.72 sec, absolute running time: 0.21 sec, cpu time: 0.13 sec, memory peak: 38 Mb, absolute service time: 1,05 sec