### Question:
RtspResponseHeader extends RtspHeader { @Override public String toString() { return "RTSP/1.0 " + code + " " + message + "\r\n" + super.toString(); } protected  RtspResponseHeader(int code, String message);  RtspResponseHeader(int code, String message, int cseq); int getCode(); void setCode(int code); String getMessage(); void setMessage(String message); @Override String toString(); static RtspResponseHeader parse(String[] headerLines);  }### Answer:
@Test public void testToString() { System.out.println("RTSP message response header toString test..."); RtspResponseHeader rh = new RtspResponseHeader(200, "OK", 1); assertEquals("RTSP/1.0 200 OK\r\nCSeq:1\r\n\r\n", rh.toString()); }