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import java.io.DataInputStream;
import java.net.Socket;
public class Main {
public static void main(String[] args) throws Exception {
Socket sock = new Socket(args[0], 1234);
DataInputStream dis = new DataInputStream(sock.getInputStream());
float f = dis.readFloat();
System.out.println("PI=" + f);
dis.close();
sock.close();
}
}
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