Java Programming

I'm a newbie , and I've short program:
------------------------


import java.net.*;

public class timdcIP {
public static void main(String[] args){
try{
if(args.length!=1){
System.out.println("Searching IP Addresss: ");

}
InetAddress host= new InetAddress.setByName(args[0]);
String HostName=host.getHostName();
System.out.println("HostName : "+ HostName);
System.out.println("IP Address : "+ host.getHostAddress());
}catch(UnknownHostException e){
System.out.println("Can't search IP Address");
return;
}
}

}
------------

And the Error:
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
InetAddress.setByName cannot be resolved to a type

at timdcIP.main(timdcIP.java:10)


Please help me to fix this problem. Thank you very much!