Java File to Binary Conversion

Question

How can i convert File to Binary? I just need it for my project. I need to encrypt a file by its binaries.

Answer 1

        try {
            StringBuilder sb = new StringBuilder();
            File file = new File("C:/log.txt");
            DataInputStream input = new DataInputStream( new FileInputStream( file ) );
            try {
                while( true ) {
                    sb.append( Integer.toBinaryString( input.readByte() ) );
                }
            } catch( EOFException eof ) {
            } catch( IOException e ) {
                e.printStackTrace();
            }
            System.out.println(sb.toString());
        } catch( FileNotFoundException e2 ) {
            e2.printStackTrace();
        }