C program to find character occurrence times in string

Comprehensive Collection of C Programming Examples

In this example, you will learn to find the occurrence times of a character in a string.

To understand this example, you should understand the followingC programmingTopic：

• C array

• C programming string

Find character occurrence times in string

#include　<stdio.h>
int　main()　{
　　　　char　str[1000],　ch;
　　　　int　count　=　0;
　　　　printf("Enter a string:　");
　　　　fgets(str,　sizeof(str),　stdin);
　　　　printf("Enter a character to find its occurrence times:　");
　　　　scanf("%c",　&ch);
　　　　for　(int　i　=　0;　str[i]　!=　'\0';　++i)　{
　　　　　　　　if　(ch　==　str[i])
　　　　　　　　　　　　++count;
　　　　}
　　　　printf("%c　occurrence times　=　%d",　ch,　count);
　　　　return　0;
}

Output result

Enter a string:　This　website　is　awesome.
Enter a character to find its occurrence times:　e
e　occurrence times=　4

In this program, the string entered by the user is stored in str.

Then, ask the user to input the character to find its occurrence count. This is stored in the variable ch.

Then, use a for loop to traverse the characters of the string. In each iteration, if the character in the string equals ch, count is incremented1.

Finally, print the number of occurrences stored in the variable count.

Comprehensive Collection of C Programming Examples