file to inputstream

file_to_ins.java

 File file = ...
 InputStream in = null;
        try {
            in = new BufferedInputStream(new FileInputStream(file));
        } catch (FileNotFoundException e1) {
            e1.printStackTrace();
        } finally {
                if (in != null) {
                    try {
                        in.close();
                    } catch (IOException e1) {
                        e1.printStackTrace();
                    }
                }
            }