MT4 Java Connect to server

MT4 contains server details (address and port) in  *.srv files. For simple application is enough to get just primary server as shown below.    

1 QuoteClient qc = new QuoteClient(2090221607, "OJgYhOfEF8", "demo.mt4tickmill.com", 443);
2 qc.Connect();
3 System.out.println("Connected. Balance = " + qc.AccountBalance());

In real applications you need to get also slave servers and connect to them if primary server not available.

 1 void connectExtra() {
 2         try {
 3             Servers servers = QuoteClient.LoadSrv( "bin\\Debug\\GerchikCo-Demo.srv");
 4             QuoteClient qc = Connect(servers.PrimaryServer, servers.SecondaryServers, 67611, "wx1yhpn");
 5             System.out.println("Connected to server");
 6         } catch (Exception ex){
 7             System.out.println(ex.getMessage());
 8         }
 9     }
10 
11     QuoteClient Connect(PrimaryServer primary , SecondaryServer[] slaves, int user, String password) {
12         System.out.println("Connecting...");
13         QuoteClient qc = new QuoteClient(user, password, primary.getHost(), primary.getPort());
14         try {
15             qc.Connect();
16             return qc;
17         } catch (Exception ex){
18             System.out.println("Cannot connect to primary server: " + ex.getMessage());
19             return ConnectSlaves(slaves, user, password);
20         }
21     }
22 
23     QuoteClient ConnectSlaves(SecondaryServer[] servers, int user, String password) {
24         System.out.println("Connecting to slaves...");
25         for(SecondaryServer server: servers)
26         {
27             QuoteClient qc = new QuoteClient(user, password, server.getHost(), server.getPort());
28             try {
29                 qc.Connect();
30                 return qc;
31             } catch (Exception ex) {
32                 System.out.println(ex.getMessage());
33             }
34         }
35         throw new RuntimeException("Cannot connect to secondary servers");
36     }

Broker could periodically change .srv file, if you want to get such updates use PathForSavingSrv field. If you set this field before Connect() method it would be updated during connection.