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

Posted Date: 9/29/2012 4:17:19 AM | Location : United States

Ask an Expert

Related Discussions:- C program for string operations, Assignment Help, Ask Question on C program for string operations, Get Answer, Expert's Help, C program for string operations Discussions

Write discussion on C program for string operations
Your posts are moderated

Write your message here..

Related Questions

Does improper inheritance have potential to wreck a project, Does improper ... Does improper inheritance have a potential to wreck a project? Many projects meet a dead end due to bad inheritance. Hence it certainly has potential to wreck a project. Sma

Explain the switch construct, The Switch Construct The switch statement... The Switch Construct The switch statement is a multi-way decision-making construct that tests an expression matches one of a number of constant values, and branches accordingly

Develop a biomedical imaging project, Develop a biomedical imaging project ... Develop a biomedical imaging project Project Description: This is a biomedical imaging project. Skills required are C++ Programming, Cocoa, Mac OS, Objective C

Bankers algorithm, creating a system having five process from p0 to p4 and ... creating a system having five process from p0 to p4 and five resource types. create the need matrix use the safe algorithm to test if the system is in safe mode.

AREAS, Write a program to find the area under the curve y = f(x) between 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. The area under a curve between two points can b

What are pre-processor directives, What are pre-processor directives? -... What are pre-processor directives? - Pre-processor directives are placed at the beginning of a C program. They begin with # symbol. - This is the place, where library files

Jewel polishing, Byteland county is very famous for luminous jewels. Lumino... Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec

Mathematical statements, Mathematical Statements and assignments    Wi... Mathematical Statements and assignments    Within C we can directly load up the variable from within the program using the mathematical expression equates (=) e.g.   a= 'h'

C program for maximum no, C Program for MAXIMUM NO, MINIMUM NO AND SORTING ... C Program for MAXIMUM NO, MINIMUM NO AND SORTING   void main() {           int i,j,t;           int a[5];           clrscr();           for(i=0;i

Default constructor, What is default constructor? explain it. What is default constructor? explain it.