Question

The first issue: write a program in C #, which does the following:
1- Read two string strings str1 and str2 entered by the user so that each one is composed
from at least five characters.
2- Transferring the first two letters of the str1 to the end of the str2, then writing each of them.
3- Delete the first and last characters of the str2 string, then write the new string that results from
Deletion process.
4- Moving two letters from the middle of the first series str1 to the middle of the second series str2 and writing each of them;
5- Prints the number of times the letter 'a' in both str1 and str

Answer 1

===========================================================================

using System;

class MainClass

{

public static void Main (string[] args)

{

Console.WriteLine("\nEnter any two strings with minimum 5 characters length:");

Console.Write("Enter string 1: ");

string str1 = Console.ReadLine();

Console.Write("Enter string 2: ");

string str2 = Console.ReadLine();

string str1dup;

string str2dup;

Console.WriteLine("\nAfter transferring the first two letters of the string 1 to the end of the string 2:");

str1dup = str1.Remove(0,2);

str2dup = str2.Insert(str2.Length,str1.Remove(2));

Console.WriteLine("String 1: " + str1dup);

Console.WriteLine("String 2: " + str2dup);

Console.WriteLine("\nAfter deleting the first and last characters of the string 2:");

str2dup = str2.Remove(str2.Length-1);

str2dup = str2dup.Remove(0,1);

Console.WriteLine("String 2: " + str2dup);

Console.WriteLine("\nAfter moving two letters from the middle of the first string to the middle of the second string:");

str1dup = str1.Remove(str1.Length/2,2);

str2dup = str2.Insert(str2.Length/2,str1.Substring(str1.Length/2,2));

Console.WriteLine("String 1: " + str1dup);

Console.WriteLine("String 2: " + str2dup);

char[] chars1 = str1.ToCharArray();

int count=0;

for(int i=0;i<str1.Length;i++)

if(chars1[i] == 'a')

count++;

char[] chars2 = str2.ToCharArray();

for(int i=0;i<str2.Length;i++)

if(chars2[i] == 'a')

count++;

Console.WriteLine("\nNo. of times the letter 'a' in both string 1 and string 2: " + count);

}

}

using System; class Mainclass public static void Main (string[] args) Console.WriteLine("\nEnter any two strings with minimum 5 characters length:"); Console.Write("Enter string 1: "); string strl - Console.ReadLine(); Console.Write("Enter string 2: "); string str2 = Console.ReadLine(); string stridup; string str2dup; Console.WriteLine("\nAfter transferring the first two letters of the string 1 to the end of the string 2:"); stridup = stri. Remove (0,2); str2dup = str2. Insert(str2.Length, stri. Remove (2)); Console.WriteLine("String 1: " + stridup); Console.WriteLine("String 2: " + str2dup); Console.WriteLine("\nAfter deleting the first and last characters of the string 2:"); str2dup = str2. Remove (str2.Length-1); str2dup = stredup. Remove(0,1); Console.WriteLine("String 2: " + str2dup);

Console.WriteLine("\nAfter moving two letters from the middle of the first string to the middle of the second string:"); stridup = stri. Remove (str1.Length/2,2); str2dup = str2. Insert(str2.Length/2, stri.Substring(stri.Length/2,2)); Console.WriteLine("String 1: " + stridup); Console.WriteLine("String 2: " + str2dup); char[] chars1 = stri.ToCharArray(); int count=0; for(int i=0;i<stri.Length; i++) if(chars1[i] == 'a') count++; char[] chars2 = str2.ToCharArray(); for(int i=0;i<str2. Length;i++) if (chars2[i] == 'a') count++; Console.WriteLine("\nNo. of times the letter 'a' in both string 1 and string 2: " + count); } 44 45 }

======================================================================

Output:

Enter any two strings with minimum 5 characters length: Enter string 1: public Enter string 2: private After transferring the first two letters of the string 1 to the end of the string 2: String 1: blic String 2: privatepu After deleting the first and last characters of the string 2: String 2: rivat After moving two letters from the middle of the first string to the middle of the second string: String 1: pubc String 2: prilivate No. of times the letter 'a' in both string 1 and string 2: 1,

===============================================================================

Hope it will usefull and do comments for any extra info if needed. Thankyou

===============================================================================