nslookup 구현

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https://a-half-human-half-developer.tistory.com/108

[Java] nslookup

https://hstory0208.tistory.com/entry/Java%EC%9E%90%EB%B0%94-List%EC%99%80-String%EB%AC%B8%EC%9E%90%EC%97%B4-%EB%B0%B0%EC%97%B4%EC%9D%84-%EC%84%9C%EB%A1%9C-%EB%B3%80%ED%99%98%ED%95%98%EB%8A%94-%EB%B2%95

[Java/자바] List와 String(문자열, 배열)을 서로 변환하는 법

	public static String[] nslookup(String data) throws Exception {
		InetAddress[] inetAddresses = InetAddress.getAllByName(data);
		List<String> ipList = new ArrayList<String>();
		for(InetAddress inetAddress : inetAddresses) {
			ipList.add(inetAddress.getHostAddress());
		}
		
		return ipList.toArray(new String[ipList.size()]);
	}