C Program to Replace all Characters by Lowercase

This is a C Program to replace all the characters by lowercase.

Problem Description

This is a C Program to replace all the characters by lowercase.

Problem Solution

1. Take a string as input.
2. Use string function strlwr to replace all the characters by lowercase.

Program/Source Code

Here is source code of the C Program to replace all the characters by lowercase. The C program is successfully compiled and run on a Linux system. The program output is also shown below.

```
/*
```

 * C Program to Replace all the Characters by Lowercase

```
 */
```
```
#include <stdio.h>
```
```
#include <string.h>
```
```
 
```
```
int main()
```
```
{
```
```
   char string[1000];
```
```
 
```

   printf("Input a string to convert to lower case\n");

```
   gets(string);
```
```
 
```

   printf("Input string in lower case: %s\n",strlwr(string));

```
 
```
```
   return  0;
```
```
}
```

Program Explanation

1. Take a string as input and store it in the array string[].
2. Using strlwr function replace all the characters by lowercase.

Note: Join free Sanfoundry classes at Telegram or Youtube

Runtime Test Cases

Input a string to convert to lower case
CHANDANA chanikya
rAVELLA
 
Input string in lower case:
chandana chanikya
ravella

Sanfoundry Global Education & Learning Series – 1000 C Programs.

Here’s the list of Best Books in C Programming, Data-Structures and Algorithms

Take C Programming Tests Now!

If you wish to look at programming examples on all topics, go to C Programming Examples.

« Prev - C Program to Find the Highest Bit Set for any Given Integer

» Next - C Program to Count the Total Number of Words using Command Line Argument

Next Steps:

Get Free Certificate of Merit in C Programming
Participate in C Programming Certification Contest
Become a Top Ranker in C Programming
Take C Programming Tests
Chapterwise Practice Tests: Chapter 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Chapterwise Mock Tests: Chapter 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Related Posts:

Recommended Articles: