C program for string operations, C/C++ Programming

Assignment Help:

Aim: To implement a program for following string operations:

  • Length of String.
  • String Concatenation.
  • Substring (provide start index and length)
  • Find character at given index.
  • Find index of first occurrence of a given character.
  • Reverse string.

 

Code:                      

class String

{

            char str[50];

            public:

            String();

            void getdata();

            int length1();

            void concat(String s);

            String substring(int ind, int len);

            char charAt(int ind);

            int indexOf(char ch);

            String reverse();

            void display();

};

 

void String::display()

{

            cout<

}

 

void String::getdata()

{

            gets(str);

}

 

String::String()

{

            strcpy(str,"");

}

 

int String::length1()

{

            int l;

            l=strlen(str);

            return (l);

}

 

void String::concat(String s)

{

            strcat(str,s.str);

}

 

String String::substring(int ind, int len)

{

            int l,x,m;

            char su[50];

            String sub;

            strcpy(sub.str,"");

            for(x=ind,m=0;x<=len+1;x++,m++)

            {

                        su[m]=str[x];

            }

            su[m]='\0';

            strcpy(sub.str,su);

            return (sub);

 

}

 

char String::charAt(int ind)

{

            char c=' ';

            int l=strlen(str);

            if(ind>l)

                        cout<<"Position out of Bounds";

            else

                        c=str[ind];

            return (c);

}

 

int String::indexOf(char ch)

{

            int x=1;

            while(str[x]!=ch && str[x]!='\0')

                        x++;

            if(str[x]!=ch)

                        return (-1);

            else

                        return (x);

}

 

String String::reverse()

{

            String s;

            strcpy(s.str,str);

            strrev(s.str);

            return (s);

}

 

void main()

{

            clrscr();

            String s1,s2,s3,s4;

            cout<<"Enter string 1:";

            s1.getdata();

            cout<<"\n\nEnter string 2:";

            s2.getdata();

            char ch='o';

            int l=s1.length1();

            cout<<"\n\nLength of string: '";

            s1.display();

            cout<<" 'is "<

            s1.concat(s2);

            cout<<"\n\nAfter concatenation:";

            s1.display();

            int ind=2, len=4;

            cout<<"\n\nStart Index="<

            s3.display();

            char c=s1.charAt(ind+4);

            cout<<"\n\nCharacter at Index: "<

            int i=s1.indexOf(ch);

            cout<<"\n\nIndex of '"<

            s4=s1.reverse();

            cout<<"\n\nReverse of \n\t'";

            s1.display();

            cout<<"'\n\t\tis \n\t";

            s4.display();

            getch();

 

}

Output:

Enter string 1: Ankit Goyal is

 

Enter string 2: a student of VESIT.

 

Length of string: 'Ankit Goyal is ' is 14

 

After concatenation: Ankit Goyal is a student of VESIT.

 

Start Index=2

Length of Substring=4

Substring: kit

 

Character at Index: 6 is 'G'

 

Index of 'o' is: 7

 

Reverse of

        'Ankit Goyal is a student of VESIT.'

                is

        .TISEV fo tneduts a si layoG tiknA


Related Discussions:- C program for string operations

Explain the new and delete operators, The new and delete operators The ...

The new and delete operators The C language has explained library functions- malloc() and free() for dynamic allocation and de-allocation of memory. C++ gives yet another appro

Explain the process of using the constructor, Using the Constructor The...

Using the Constructor There are basically three ways of creating and initializing the object. The first way to call the constructor is explicitly as :

Assignmet, I have a assignment deadline is 11.11.2015 can I get help

I have a assignment deadline is 11.11.2015 can I get help

Square maze, SquareMaze The SquareMaze class should be declared and defined...

SquareMaze The SquareMaze class should be declared and defined in maze.h and maze.cpp, respectively. Each SquareMaze object will represent a randomly-generated square maze and its

C++ coursework programming for engineering, Hi there I am looking for hel...

Hi there I am looking for help with c++ coursework. Could you please provide me with email address to email a copy of it. Thanks

C program to create, Aim: To implement a program to create, update & displ...

Aim: To implement a program to create, update & display account & admin record of person using display account & admin records of person using virtual base class.. Code:

C, how to learn programming skills

how to learn programming skills

Flow chart, obtain two numbers from thekey board,and determain and display(...

obtain two numbers from thekey board,and determain and display(if either)is the larger of two numbers.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd