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Client.java
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84
Client.java
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import java.net.*;
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import java.io.*;
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public class Client
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{
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public static void main(String args[])
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{
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//pobranie i sprawdzenie otrzymanych argument闚
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if (args.length < 2){
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System.out.println("Wywo豉nie programu: Client host port");
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System.exit(-1);
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}
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String host = args[0];
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int port = 0;
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try{
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port = Integer.valueOf(args[1]);
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}
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catch(NumberFormatException e){
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System.out.println("Nieprawid這wy argument: port");
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System.exit(-1);
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}
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//Inicjalizacja gniazda klienckiego
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Socket clientSocket = null;
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try{
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clientSocket = new Socket(host, port);
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}
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catch(UnknownHostException e){
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System.out.println("Nieznany host.");
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System.exit(-1);
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}
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catch(ConnectException e){
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System.out.println("Po章czenie odrzucone.");
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System.exit(-1);
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}
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catch(IOException e){
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System.out.println("B章d wej𦣇ia-wyj𦣇ia: " + e);
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System.exit(-1);
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}
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System.out.println("Po章czono z " + clientSocket);
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//Deklaracje zmiennych strumieniowych
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String line = null;
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BufferedReader brSockInp = null;
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BufferedReader brLocalInp = null;
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DataOutputStream out = null;
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//Utworzenie strumieni
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try{
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out = new DataOutputStream(clientSocket.getOutputStream());
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brSockInp = new BufferedReader(
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new InputStreamReader(
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clientSocket.getInputStream()));
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brLocalInp = new BufferedReader(
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new InputStreamReader(System.in));
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}
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catch(IOException e){
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System.out.println("B章d przy tworzeniu strumieni: " + e);
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System.exit(-1);
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}
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//P皻la g堯wna klienta
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while(true){
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try{
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line = brLocalInp.readLine();
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if(line != null){
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System.out.println("Wysy豉m: " + line);
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out.writeBytes(line + '\n');
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out.flush();
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}
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if(line == null || "quit".equals(line)){
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System.out.println("Ko鎍zenie pracy...");
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clientSocket.close();
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System.exit(0);
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}
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brSockInp.readLine();
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System.out.println("Otrzymano: " + line);
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}
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catch(IOException e){
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System.out.println("B章d wej𦣇ia-wyj𦣇ia: " + e);
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System.exit(-1);
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}
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}
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}
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}
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