package Ukrynashta;

import java.util.*;
import java.io.*;

public class MainProgram {
    public static void main(String[] args) {
        Scanner fileContent = null;
        PrintWriter print = null;
        int rez=0;
try
{
    File file = new File("art.txt");
    if(!file.exists())
        throw new FileNotFoundException(); // nes file nuk ekziston e throw(gjujme 1 exception  ku pastaj ekzekutohet catch
    fileContent=new Scanner(file);
    while(fileContent.hasNext())
    {
        String line=fileContent.nextLine().toUpperCase();
        for(char c : line.toCharArray())  // line.tocharArray e kthen string ne array te karaktereve me perdor tani ne to for loop
        {
            if(c=='B')
                rez++;

        }
    }

    System.out.println(rez);
}
catch(Exception e )
{
    System.out.println(e.getMessage());
    System.out.println(e.getStackTrace());

}
finally{
    fileContent.close();
}

    }

}