import java.util.*; import java.net.*;
public class NameTable {
    class NameEntry {
        public String procName;
        public InetSocketAddress addr;
        public NameEntry(String pName, String host, int port){
           procName = pName;
           addr = new InetSocketAddress(host, port);
        }
      }
    ArrayList<NameEntry> table = new ArrayList<NameEntry>();
    public synchronized InetSocketAddress search(String s) {
        for (NameEntry entry: table)
            if (s.equals(entry.procName)) return entry.addr;
        return null;
    }
    public synchronized int insert(String s, String hostName, int portNumber) {
        InetSocketAddress old = search(s); // is it already there
        if (old == null) {
            table.add(new NameEntry(s,hostName, portNumber));
            return 1;
        } else // already there
            return 0;
    }
    public synchronized void clear() {
         table.clear();
    }
}