如何将字符转换为二进制？

Question

如何将字符串中的给定字符转换为其对应的二进制值？

public void send(DataFrame frame) {
    String bitString = frame.toString();
        for (int a = 0; a < bitString.length(); a++) {
            char c = bitString.charAt(a);
            ????
    }
}

其中frame被定义为字节数组（在DataFrame类中作为byte []

Answer 1

String binaryString = Integer.toBinaryString(0x100 + bytes[i]).substring(2);

Answer 2

试试这个

        String bitString = frame.toString();
            for (int a = 0; a < bitString.length(); a++) {
                byte[] b = new byte[1024];
                b = bitString.getBytes();
                System.out.println(Arrays.toString(b));
        }