In this tutorial you will learn about the C Program to Find First Occurrence of a Character in a String and its application with practical example.
C Program to Find First Occurrence of a Character in a String
In this tutorial, we will learn to create a C program that will Find the First Occurrence of a Character in a String in C programming
Prerequisites
Before starting with this tutorial we assume that you are best aware of the following C programming topics:
- Operators in C Programming.
- Basic Input and Output function in C Programming.
- Basic C programming.
- For loop in C programming.
- Conditional Statements in C programming.
What is a string?
The String is a collection of characters and words. The word is a collection of alphabets. For string, only one variable is declared which can store multiple values. The String can consist of all the typeable data it means Digits, Alphabets, Symbols, etc. A character is any single entity that is used in combination to form a word.
Algorithm:-
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1. Declaring the variables for the program. 2. Taking the input string from the user. 3. Taking the input from user the word needs to be searched. 4. Passing those variables to for loop. 5. Using conditional statements for the program to find the first occerence of word. 6. Printing the result position. 7. End the program. |
Find the First Occurrence of a Character in a String
In this program first, we will take input string from the user. Then we will take the Character to be searched from the user. Then will find the first occurrence of that Character in that string. Printing the position of that character.
Let us take the example program from the below code to search for the first occurrence of that Character.
Program:-
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/* C Program to find First Occurrence of a Character in a String */ #include <stdio.h> #include <string.h> int main() { //declaring the required vairables for teh program char str[100], ch; int i, Flag; Flag = 0; //Taking input string from the user printf("\n Please Enter any String : "); gets(str); //taking the input character to look into the string printf("\n Please Enter the Character that you want to Search for : "); scanf("%c", &ch); //Searching the first occurrence of that number. for(i = 0; i <= strlen(str); i++) { if(str[i] == ch) { Flag++; break; } } //Printing the output position in the result of that string if(Flag == 0) { printf("\n Sorry!! We haven't found the Search Character '%c' ", ch); } else { printf("\n The First Occurrence of the Search Element '%c' is at Position %d ", ch, i + 1); } return 0; } |
Output:-
In the above program, we have first initialized the required variable.
- strg[100] = it will hold the string value.
- ch = it will hold the character value.
- j = it will hold the integer value.
- i = it will hold the integer value.
- flag = it will hold the integer value
Input string from the user for the program and Take the input character from the user to search.
Searching the character in the string.
Printing output position of the character.
