import java.io.File;  
import java.io.FileInputStream;
import java.io.IOException;

public class Main {
public static void main(String[] args) {

    File file = new File("etc/hosts");
    FileInputStream fis = null;

    try {
        fis = new FileInputStream(file);

        System.out.println("Total file size to read (in bytes) : "
                + fis.available());

        int content;
        while ((content = fis.read()) != -1) {
            // convert to char and display it
            System.out.print((char) content);
        }

    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (fis != null)
                fis.close();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }

}
}