Resolving ip-address of a hostname

I have the DNS server IP address and a hostname.

Using Java, how can I find the IP address of the hostname as returned by that DNS server using the IP address and the hostname?

Take a look at InetAddress and the getHostAddress() method.

InetAddress address = InetAddress.getByName("www.example.com"); 
System.out.println(address.getHostAddress()); 

You can do it like this:

for(InetAddress addr : InetAddress.getAllByName("stackoverflow.com"))
    System.out.println(addr.getHostAddress());

You can use InetAddress for this. Try the below code,

InetAddress address = InetAddress.getByName("www.yahoo.com");
System.out.println(address.getHostAddress());
System.out.println(address.getHostName());