Question

Write a C program to convert uppercase string into lowercase string.

Answer 1

Answer:

The toupper() function is used to convert lowercase alphabet to uppercase. i.e. If the character passed is a lowercase alphabet then the toupper() function converts a lowercase alphabet to an uppercase alphabet. It is defined in the ctype.h header file.

Explanation:

I hope get your answer

Answer 2

Answer:

Write a C program to convert uppercase string into lowercase string.

Explanation:

* C program to convert uppercase string to  lower case

#include<stdio.h>

#include<string.h>

int main(){

  /* This array can hold a string of upto 25

   * chars, if you are going to enter larger string

   * then increase the array size accordingly

   */

  char str[25];

  int i;

  printf("Enter the string: ");

  scanf("%s",str);

 

  for(i=0;i<=strlen(str);i++){

     if(str[i]>=65&&str[i]<=90)

        str[i]=str[i]+32;

  }

  printf("\nLower Case String is: %s",str);

  return 0;

}

Output:-

Enter the string: CAT

Lower case string: cat