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public class ServerConnectionManager {
    public void createConnection(String host, String path, String port) {
        // Code
    }
    public void sendRequest(Object request) {
        // Code
    }
}

// The above class provides two operations: make a connection and send a request. 
// Two responsibilities are mixed up. It can be designed as follows:
public class ServerConnectionManager {
    public void createConnection(String host, String path, String port) {
        // Code
    }
}
public class ServerConnection {
    public void sendRequest(Object request) {
        // Code
    }
}