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Asked: 2026-05-11T11:45:26+00:00

InetAddress serverAddr = InetAddress.getByName(serverAddress); String hostname = serverAddr.getCanonicalHostName(); Socket socket = new Socket(serverAddr, portNumber);

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InetAddress serverAddr = InetAddress.getByName(serverAddress); String hostname = serverAddr.getCanonicalHostName(); Socket socket = new Socket(serverAddr, portNumber); // Freezes before this line if the server is unavailable socket.setSoTimeout(3000);

Does anyone know how to implement the check of server availability or prevent the freezing?

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1 Answer

  1. By using the two-argument constructor, you tell Java to connect immediately. What you are looking for is likely

    Socket socket = new Socket(); // Configure socket here socket.connect(new InetSocketAddress(serverAddr, portNumber), 3000); if (! socket.isConnected()) {     // Error handling } else {     // Use socket }

    This will still block for 3s though. If you want to prevent that, use a thread for the connection.

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