Importance Programming Tutorial

Check weather the string is palindrome or not.( with using string library function)

 #include<Stdio.h>

#include<conio.h>

                Main ()

{

                Char a[50] , b[50];

                Printf(“entry a string”);

                Gets(a);

                Strcpy(b,a);

                Strev(b);

                If (strcmp (a,b)==0)

                Printf(“ the sting is palindrome”);

                Else

                Printf(“in the string is not palindrome”);

                Getch();

                }

Write a program to read a string & count number of upper case letter , lower case latter, digits & special symbol.

 #include<Stdio.h>

#include<conio.h>

                Main()

{             

                Int len, I , countup=o , countlo=o, countdi=o, countsp=o;

                Char a [50];

                Printf(“enter a string”);

                Gets(a);

                Len= strlen (a);

                For (i=0; i<len; i++)

                {

                If (a[i] >= ‘A’ && a[i]<=’2’)

                Countlo = countlo + 1;

                Else if (a[i] >= ‘A’ && a[i]<=’Z’)

                Countup= countdi + 1;

                Else if (a[i]>=’O’ && a[i]<=’9’)

                Countdi= countdi + 1;

                Else

                Countsp= countsp + 1;

                }

Printf(“in no. of uppercase alphabet % d”, countup);

Printf(“in no. of lowercase alphabet % d”, countlo);

Printf(“in no. of digits % d”, countdi);

Printf(“in no. of special symbol % d”, countsp);

Write a program to read a string & convert upper case alphabet to lower case & lower case to upper case.

 #include<Stdio.h>

#include<conio.h>

                Main ()

{

                Int len, I;

                Char a [50];

                Printf(“enter a string);

                Gets(a);

                Len= strlen (a);

                For (i=0; i<len; i++)

                {

                If (a[i] >= ‘A’ && a[i]<=’Z’)

                a[i]= toupper (a[i]);

                else if( a[i]>= ‘A’ &&  a[i]<= ‘2’);

                a[i]= tolower(a[i]);

                }

                Print(“The changed string is %”, a);

}