Answer:
import java.util.Scanner;
public class ANot {
public static void main(String[] args) {
System.out.println("Enter a character");
Scanner in = new Scanner(System.in);
char character = in.next().charAt(0);
System.out.println("Enter a string");
String string = in.next();
//Calling the method
System.out.println(countChar(character,string));
}
public static int countChar(char a, String in){
int counter =0; // initialize counter
for (int i=0;i<in.length();i++){
if(a == in.charAt(i))
counter++;
}
return counter;
}
}
Explanation:
This program is written in Java Programming language.
We created a method countChar that returns a integer called counter
Using a for loop in the method we iterate through the string object and check (a == in.charAt(i)) so as to increase counter when ever there is a match.
In the main method a Scanner Class is used to request user to input a character and a string which is passed to countChar when called.
NOTE that this program has considered lower case letters to be different from upper cases as such a is not equal to A
