C Language | Arrays 16

Question:4
C program to take input for a string and display it and also print the following:
(Using inbuilt functions):
* total length i.e. total characters
* total alphabets
* total upper case alphabet
* total lower case alphabets
* total digits
* total spaces
* total special characters
Sol:

/* Using for loop */
#include<stdio.h>
#include<ctype.h>
int main()
{
  char n[20];
  int i=0,a=0,ua=0,la=0,d=0,sp=0,spl=0;
  printf("Enter any string ");
  gets(n);
  for(i=0;n[i]!='\0';i++)
  {
      printf("%c\n",n[i]);
      if(isalpha(n[i]))
      {
         a++;
         if(isupper(n[i]))
            ua++;
         else
            la++;
      }
      else
        if(isdigit(n[i]))
        d++;
      else
        if(isspace(n[i]))
            sp++;
        else
            spl++;
  }
  printf("Len = %d\n",i);
  printf("Total alphabets = %d upper alphabets = %d lower alphabets = %d\n",a,ua,la);
  printf("digits = %d  spaces = %d special characters = %d\n",d,sp,spl);
  return(0);
}

/* Using while loop */
#include<stdio.h>
#include<ctype.h>
int main()
{
  char n[20];
  int i=0,a=0,ua=0,la=0,d=0,sp=0,spl=0;
  printf("Enter any string ");
  gets(n);
  while(n[i]!='\0')
  {
      printf("%c\n",n[i]);
      if(isalpha(n[i]))
      {
         a++;
         if(isupper(n[i]))
            ua++;
         else
            la++;
      }
      else
        if(isdigit(n[i]))
        d++;
      else
        if(isspace(n[i]))
            sp++;
        else
            spl++;
        i++;
  }
  printf("Len = %d\n",i);
  printf("Total alphabets = %d upper alphabets = %d lower alphabets = %d\n",a,ua,la);
  printf("digits = %d  spaces = %d special characters = %d\n",d,sp,spl);
  return(0);
}

/* Output */

Enter any string He324 %^llo
H
e
3
2
4

%
^
l
l
o
Len = 11
Total alphabets = 5 upper alphabets = 1 lower alphabets = 4
digits = 3  spaces = 1 special characters = 2

Question:5
C program to take input for a string display the string, also count and print total alphabets, vowels and consonants in the string.
Sol:

/* Using for loop */
#include<stdio.h>
#include<ctype.h>
int main()
{
  char n[20];
  int i=0,a=0,v=0,c=0;
  printf("Enter any string ");
  gets(n);
  for(i=0;n[i]!='\0';i++)
  {
      printf("%c\n",n[i]);
      if((n[i]>='A' && n[i]<='Z') || (n[i]>='a' && n[i]<='z'))
      {
          a++;
          if(n[i]=='A' || n[i]=='a' || n[i]=='E' || n[i]=='e' || n[i]=='I' || n[i]=='i' || n[i]=='O' || n[i]=='o' || n[i]=='U' || n[i]=='u')
            v++;
          else
            c++;
      }
  }
  printf("Len = %d\n",i);
  printf("Total alphabets = %d\n",a);
  printf("Total vowels = %d  consonents = %d \n",v,c);
  return(0);
}

/* Output */

Enter any string computer
c
o
m
p
u
t
e
r
Len = 8
Total alphabets = 8
Total vowels = 3  consonents = 5

Question:6
C program to take input for a string, display the string in such a manner that all upper case alphabets are displayed as lower case, and rest are displayed as it is.
Sol:

/* Using for loop */
#include<stdio.h>
#include<ctype.h>
int main()
{
  char n[20];
  int i=0;
  printf("Enter any string ");
  gets(n);
  for(i=0;n[i]!='\0';i++)
  {
      if(n[i]>='A' && n[i]<='Z')
        printf("%c",n[i]+32);
      else
        printf("%c",n[i]);

  }
   return(0);
}

/* Using while loop */
#include<stdio.h>
#include<ctype.h>
int main()
{
  char n[20];
  int i=0;
  printf("Enter any string ");
  gets(n);
  while(n[i]!='\0')
  {
      if(n[i]>='A' && n[i]<='Z')
        printf("%c",n[i]+32);
      else
        printf("%c",n[i]);
      i++;
  }
   return(0);
}

/* Output */

Enter any string COMPuter23
computer23