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- import java.io.*;
- import java.net.*;
- class TCPServer
- {
- public static void main(String argv[]) throws Exception
- {
- String clientSentence;
- String capitalizedSentence;
- ServerSocket welcomeSocket = new ServerSocket(3001);
- while(true)
- {
- Socket connectionSocket = welcomeSocket.accept();
- BufferedReader inFromClient =
- new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
- DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream());
- clientSentence = inFromClient.readLine();
- System.out.println("Received: " + clientSentence);
- capitalizedSentence = clientSentence.toUpperCase() + '\n';
- outToClient.writeBytes(capitalizedSentence);
- }
- }
- }
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