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Java

Connect a TCP or TLS Socket

See more Socket/SSL/TLS Examples

Demonstrates Socket.Connect, which establishes a TCP connection to a host and port. Setting the TLS argument to _TRUE_ performs a TLS handshake after the TCP connection succeeds.

Background. The hostname may be a DNS name or a numeric IPv4/IPv6 address. The final argument bounds how long the connect attempt waits before failing. On failure, ConnectFailReason and LastErrorText provide detail.

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Chilkat2 Java
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Socket;

public class ChilkatExample {

    public static void main(String[] args) {
        Socket socket = new Socket();

        // Connect to the server using TLS.  The 3rd argument enables the TLS handshake after the TCP
        // connection succeeds; the 4th is the maximum time to wait, in milliseconds.
        boolean bTls = true;
        int maxWaitMs = 5000;
        try {
            socket.connect("example.com", 5000, bTls, maxWaitMs);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // StringCharset controls the character encoding used when sending and receiving text.
        socket.setStringCharset("utf-8");

        // The socket is now connected and ready to send and receive data using whatever protocol the
        // application implements.
        System.out.println("Connected: " + socket.getIsConnected());

        // Close the connection when finished.  The argument is the maximum time to wait for a clean
        // shutdown, in milliseconds.
        try {
            socket.closeConnection(1000);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }
    }
}