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import java.io.*; import java.net.*; // // // gethost.java // // public class gethost { public static void main (string arg[]){ if (arg.length>=1){ inetaddress[] inet; int i=1; try{ for (i=1;i<=arg.length;i++){ inet = inetaddress.getallbyname(arg[i-1]); for (int j=1;j<=inet.length;j++){ system.out.print(inet[j-1].tostring()); system.out.print(""); } } } catch(unknownhostexception e){ system.out.print("unknown hostname!"+arg[i-1]); } } else{ system.out.print("usage java/jview getip <hostname>"); } } } </pre> </p> <p> <pre> <font color=red>example 2</font> <a href="gethtml.java">download now</a> //gethtml.java /** * this is a program which can read information from a web server. * @version 1.0 2000/01/01 * @author jdeveloper **/ import java.net.*; import java.io.*;
public class gethtml { public static void main(string args[]){ if (args.length < 1){ system.out.println("usage: java gethtml httpaddress"); system.exit(1); } string surladdress = new string(args[0]); url url = null; try{ url = new url(surladdress); }catch(malformedurlexception e){ system.err.println(e.tostring()); system.exit(1); } try{ inputstream ins = url.openstream(); bufferedreader breader = new bufferedreader(new inputstreamreader(ins)); string info = breader.readline(); while(info != null){ system.out.println(info); info = breader.readline(); } } catch(ioexception e){ system.err.println(e.tostring()); system.exit(1); } } }
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