Can someone help me with this?

Answer:
a
b
C
D
c
D
E
F
Explanation:
import java.util.regex.*;
import java.io.*;
public class Brainy {
public static void main(String [] args) throws IOException {
BufferedReader codedAnswer = new BufferedReader(new FileReader("C:\\Users\\HP\\Documents\\codedAnswer.txt"));
String line = codedAnswer.readLine();
while (line != null) {
if (line.equalsIgnoreCase("a") || line.equalsIgnoreCase("b") || line.equalsIgnoreCase("c")
|| line.equalsIgnoreCase("d") || line.equalsIgnoreCase("e")
|| line.equalsIgnoreCase("f")) {
System.out.println(line);
}
line = codedAnswer.readLine();
}
}
}