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

Input, I want to take 1.1 as input but when I am declaring it as float the ...

I want to take 1.1 as input but when I am declaring it as float the output is given as 1.1000000

Sorted linked list , Node *orderedInsert(Node *p, int newval); /* Allocates...

Node *orderedInsert(Node *p, int newval); /* Allocates a new Node with data value newval and inserts into the ordered list with first node pointer p in such a way that the data va

Command line program to find name matches, What's a six-letter word that ha...

What's a six-letter word that has an e as its first, third, and fifth letter? Can you find an anagram of pine grave. Or how about a word that starts and ends with ant (other than a

Explain reference oddities, Reference Oddities A reference variable can...

Reference Oddities A reference variable can demote to any integer variable, be it in an array or a member variable from structure or class. Reference variables can demote to co

Find out the largest torque, Find out the largest torque: A flat belt...

Find out the largest torque: A flat belt is taken in use to transmit torque from pulley A to pulley B as shown in figure given below. The radius of each pulley is 50mm and co

Explalin concept of derivations in c++, derivations 1. Regardless of the...

derivations 1. Regardless of the type of derivation, private members are inherited by the derived class, but cannot be accessed by the new member function of the derived class,

Luminous Jewels - The Polishing Game, First line starts with T, number of t...

First line starts with T, number of test cases. Each test case T contains a necklace (N).

Sdsds, Given an integer n and a permutation of numbers 1, 2 ... , n-1, n wr...

Given an integer n and a permutation of numbers 1, 2 ... , n-1, n write a program to print the permutation that lexicographically precedes the given input permutation. If the given

Area under curve, Write a program to find the area under the curve y = f(x)...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b.   #include float start_poin

Decodethecode, how to decode the numerals to string..

how to decode the numerals to string..

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