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Client.java
52 lines (46 loc) · 1.49 KB
/
Client.java
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package tcp.objectserver;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
public class Client
{
public static void main(String argv[])
{
if (argv.length < 3) {
System.err.println("Usage: java Client <hostname> <port> <n>");
System.exit(1);
}
try {
int n = Integer.parseInt(argv[2]);
Socket server = new Socket(argv[0], Integer.parseInt(argv[1]));
ObjectOutputStream out = new ObjectOutputStream(server.getOutputStream());
ObjectInputStream in = new ObjectInputStream(server.getInputStream());
out.writeObject(new DateRequest());
out.flush();
System.out.println(in.readObject());
long timeTaken = System.currentTimeMillis();
out.writeObject(new MyCalculation(n));
out.flush();
Object obj = in.readObject();
timeTaken = System.currentTimeMillis() - timeTaken;
System.out.println("Time taken to receive reply from server = " + timeTaken / 1000.0 + " seconds.");
if (obj instanceof int[]) {
if (n < 100) {
System.out.println(obj);
int[] results = (int[]) obj;
String padString = " ";
for (int i = 0; i < results.length; i++) {
System.err.print(results[i] + padString);
}
System.err.println();
}
}
server.close();
} catch (IOException e) {
System.out.println("I/O error " + e); // I/O error
} catch (ClassNotFoundException e2) {
System.out.println(e2); // Unknown type of response object
}
}
}