encode arbitrary file to base64 string (java)

b64.java

	String s= new String();

        int BUFFER_SIZE = 4096;
	byte[] buffer = new byte[BUFFER_SIZE];
	InputStream input = new FileInputStream(args[0]);
	OutputStream output = new Base64OutputStream(new FileOutputStream(args[1]));
	int n = input.read(buffer, 0, BUFFER_SIZE);
	while (n >= 0) {
	    output.write(buffer, 0, n);
	    n = input.read(buffer, 0, BUFFER_SIZE);
	}
	input.close();
	output.close();