hertzsprung hertzsprung - 1 year ago 80
HTTP Question

Are HTTP and HTTPS default port numbers defined in the JDK?

I've hunted around a bit trying to see if port 80 and port 443 are defined as public constants anywhere. Do these exist in the JDK (or perhaps in a common library such as Apache HttpClient)?

Answer Source

Look at Javadoc for URL: http://docs.oracle.com/javase/8/docs/api/java/net/URL.html#getDefaultPort--

getDefaultPort() returns the port for the given protocol

URL url = new URL("http://blah.com");
int defaultPort = url.getDefaultPort();
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