Write a program that

Scans the DNA sequence filename from the standard input (don't print a prompt to the user). Note that the file sent will be an altered version of the file you saved above.

Your project must have a class named Main in a package named ecolicounts.

Reads in the file and prints out the number of A's, C's, G's, and T's in the sequence. The format should look like #A = 1142136 #C = 1179433 #G = 1176775 #T = 1140877

I have this written down but G and T are switched and need to be like the above problem

public class Main {

public static void main(String args[]) {

try {

HashMap characterCountMap = new HashMap();

Scanner inputScanner = new Scanner(in);

String fileName = inputScanner.next();

Scanner scanner = new Scanner(new File(fileName));

while (scanner.hasNext()) {

String s = scanner.next();

for (int index = 0; index < s.length(); index++) {

Character ch = s.charAt(index);

if (characterCountMap.get(ch) == null)

characterCountMap.put(ch, 0l);

characterCountMap.put(ch, characterCountMap.get(ch) + 1);

}

}

for (Character ch : characterCountMap.keySet()) {

out.println("#" + ch + " = " + characterCountMap.get(ch));

}

} catch (IOException e) {

out.println(e.getMessage());

}

}

}