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

Poker room auto seat program, Poker Room auto seat program Project Descr...

Poker Room auto seat program Project Description: I want a script for an online poker site. It requires to be scanning all the available tables and when the table meets certa

Explain the goto statement, The goto statement This statement can be us...

The goto statement This statement can be used to branch to another statement of the program. This is rarely used as it violates the principle of structured programming. Though

Explain structures, Structures A structure is a derived data type. It i...

Structures A structure is a derived data type. It is a combination of logically related data items. Unlike arrays, which are a collection of such as data types, structures can

Program is to append the contents of one file to another, Program is to app...

Program is to append the contents of one file to another: void main()    {   clrscr();   fstream file1,file2;   char st1[13],st2[13];/* 13 because a filename canno

I need whatsapp software in my website, I need whatsapp software in my webs...

I need whatsapp software in my website Project Description: i need whatsapp software in my website same this whatsapp if anyone can make to me this in my website Skills

Define some features of automatic variables in c program, Define Some Featu...

Define Some Features of Automatic Variables in C program? The features of automatic variables are like as Storage - memory Default initial value - an unpredictable value,

I need asp .net facebook app project completion, I need Asp .net Facebook a...

I need Asp .net Facebook app project completion Project Description: We are urgently seeking a few remaining items to be completed, and the project to be deployed to live.

Write a program to change the matrix program, Change the matrix program (pr...

Change the matrix program (program 3) slightly. Overload == operator to compare two matrices to be added or subtracted. i.e., whether the column of first and the row of second

Write a program to illustrate the call by reference, Write a Program to ill...

Write a Program to illustrate the Call by Reference? Here is an illustration: #include . int compute_sum(int *n); int main( void) { int n=3, sum; printf("%d\n",n); /

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