Question

C++ Programming in Amazon WorkSpace if possible.

A string is a sequence of characters. Write a C++ program by creating a user-defined string class that performs the following functions:

• String comparison
• String concatenation
• Returning the length of the string
• Reversing a string backward

Answer 1

Program:

#include<iostream>
using namespace std;

class StringDemo
{
public:
string str1,str2;

StringDemo(string str11,string str22)
{
str1=str11;
str2=str22;
}

void Comparison()
{
if(str1==str2)
{
cout<<"Both the strings are equal!!"<<endl;
}
else
{
cout<<"Both the strings are not equal!!"<<endl;
}
}

void Concatenation()
{
string str3=str1+str2;
cout<<"\nConcatenation of "<<str1<<" and "<<str2<<" : "<<str3<<endl;
}

void Length()
{
cout<<"Lenght of first string: "<<str1.size()<<endl;
cout<<"Lenght of second string: "<<str2.size()<<endl;
}

void ReverseString()
{
cout<<"Reverse of first string: ";
for(int i=str1.size()-1;i>=0;i--)
{
cout<<str1[i];
}

cout<<"\nReverse of second string: ";
for(int i=str2.size()-1;i>=0;i--)
{
cout<<str2[i];
}
}

};

int main()
{
string s1,s2;
cout<<"Enter first string: ";
cin>>s1;
cout<<"Enter second string: ";
cin>>s2;

StringDemo sd(s1,s2);
sd.Concatenation();
sd.Comparison();
sd.Length();
sd.ReverseString();

return 0;
}

Output: