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

Boardcoloring, how to fill the blank space in4*4 matrix?

how to fill the blank space in4*4 matrix?

Program for dynamic 2d memory, Requirements: 1.  This assignment as well...

Requirements: 1.  This assignment as well as other assignments in this class must be finished on Windows operating system. 2.  Zip your program and submit the zip file on ANG

Define the double data type of c language, Define the Double Data Type of c...

Define the Double Data Type of c Language? The double is used to define BIG floating point numbers and it reserves twice the storage for the number. When the accuracy provided

What is object variable, The definition of an object(variable ): We can...

The definition of an object(variable ): We can explain a variable(set memory to the variable) in the following ways. e.g. double salary; int month; When more than o

Arrys, Write a program that allows user to enter number of elements in an a...

Write a program that allows user to enter number of elements in an array. The program then allows user to enter the elements. Write a function called max that returns the position

Arrays, how to avoid duplicates strings in an array

how to avoid duplicates strings in an array

Define scope rules of c program - computer programming, Define Scope Rules ...

Define Scope Rules of C program - Computer Programming? The fundamental rule of scope is that identifiers are accessible only within the block in which they are declared and th

Algorithm and flowcharts, algorithm to find out all the factors of given po...

algorithm to find out all the factors of given positive integers

Where are longjmp and setjmp used in c++, Where are longjmp and setjmp used...

Where are longjmp and setjmp used in C++? -Setjmp and longjmp must not be used in C++. - Longjmp jumps out of the function without unwinding stack. This means that local obj

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