import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class FileOpen {
    public FileOpen() {
    }

    public void readOneLineTCR(String filename) {
        try (BufferedReader br = new BufferedReader(new FileReader(filename));) {
            br.readLine();
            // close unnecessary in this formulation
        } catch (FileNotFoundException e) {
            System.err.println("Cound not open file " + e);
        } catch (IOException e) {
            System.err.println("Problem reading " + e);
        }
    }

    public void readOneLineTC(String filename) {
        BufferedReader br = null;
        try {
            br = new BufferedReader(new FileReader(filename));
            br.readLine();
        } catch (FileNotFoundException fnf) {
            System.err.println("Cound not open file " + fnf);
        } catch (IOException e) {
            System.err.println("Problem reading " + e);
        } finally {
            if (br != null) {
                try {
                    br.close(); // MUST EXPLICITLY CLOSE -- AND MUST BE IN FINALLY
                } catch (IOException ioe) {
                    System.err.println("Problem closing reader " + ioe);
                }
            }
        }
    }

    public static void main(String[] args) {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        try {
            System.out.print("Enter file to be read: ");
            String name = br.readLine().trim();
            new FileOpen().readOneLineTC(name);
        } catch (IOException e) {
            System.err.println("Could not read from the keyboard " + e);
            return;
        }

    }
}