public class JI9045595 {

	public static void main(String[] args) {
		try { 
			String xx = "http://coder_1.tanglei.name"; 
			java.net.URI u = new java.net.URI(xx); 
			System.out.println(u); 
			System.out.println(u.getHost()); // null 
			java.net.URL url = new java.net.URL(xx); 
			System.out.println(url); 
			System.out.println(url.getHost()); // coder_1.tanglei.name 
			java.net.URI u2 = new java.net.URI(url.getProtocol(), url.getHost(), url.getPath(), ""); 
			System.out.println(u2); 
		} catch (Exception e){ 
			System.out.println("exception got: " + e.getMessage()); 
			e.printStackTrace();
		} 

	}

}