вот мой первоклассный клиент
package hwch33;
import java.net.*;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.ScrollPane;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;
import java.io.*;
public class Client extends Application {
// IO streams
DataOutputStream toServer = null;
DataInputStream fromServer = null;
@Override // Override the start method in the Application class
public void start(Stage primaryStage) {
// Panel p to hold the label and text field
BorderPane paneForTextField = new BorderPane();
paneForTextField.setPadding(new Insets(5, 5, 5, 5));
paneForTextField.setStyle("-fx-border-color: green");
paneForTextField.setLeft(new Label("Enter a radius: "));
TextField tf = new TextField();
tf.setAlignment(Pos.BOTTOM_RIGHT);
paneForTextField.setCenter(tf);
BorderPane mainPane = new BorderPane();
// Text area to display contents
TextArea ta = new TextArea();
mainPane.setCenter(new ScrollPane(ta));
mainPane.setTop(paneForTextField);
// Create a scene and place it in the stage
Scene scene = new Scene(mainPane, 450, 200);
primaryStage.setTitle("Client"); // Set the stage title
primaryStage.setScene(scene); // Place the scene in the stage
primaryStage.show(); // Display the stage
tf.setOnAction(e -> {
try {
// Get the radius from the text field
double radius = Double.parseDouble(tf.getText().trim());
// Send the radius to the server
toServer.writeDouble(radius);
toServer.flush();
// Get area from the server
double area = fromServer.readDouble();
// Display to the text area
ta.appendText("Radius is " + radius + "\n");
ta.appendText("Area received from the server is "
+ area + '\n');
}
catch (IOException ex) {
System.err.println(ex);
}
});
try {
// Create a socket to connect to the server
Socket socket = new Socket("localhost", 8000);
//Socket socket = new Socket("130.254.204.36", 8000);
//Socket socket = new Socket("drake.Armstrong.edu", 8000);
// Create an input stream to receive data from the server
fromServer = new DataInputStream(socket.getInputStream());
// Create an output stream to send data to the server
toServer = new DataOutputStream(socket.getOutputStream());
}
catch (IOException ex) {
ta.appendText(ex.toString() + '\n');
}
}
}
вот мой сервер второго класса
package hwch33;
import java.io.*;
import java.net.*;
import java.util.Date;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.scene.Scene;
import javafx.scene.control.ScrollPane;
import javafx.scene.control.TextArea;
import javafx.stage.Stage;
public class Server extends Application {
/**
*
* @param primaryStage
*/
@Override
public void start(Stage primaryStage) {
// Text area for displaying contents
TextArea ta = new TextArea();
// Create a scene and place it in the stage
Scene scene = new Scene(new ScrollPane(ta), 450, 200);
primaryStage.setTitle("Server"); // Set the stage title
primaryStage.setScene(scene); // Place the scene in the stage
primaryStage.show(); // Display the stage
new Thread(() -> {
try {
// Create a server socket
ServerSocket serverSocket = new ServerSocket(8000);
Platform.runLater(() ->
ta.appendText("Server started at " + new Date() + '\n'));
Socket socket = serverSocket.accept();
DataInputStream inputFromClient = new DataInputStream(
socket.getInputStream());
DataOutputStream outputToClient = new DataOutputStream(
socket.getOutputStream());
while (true) {
double radius = inputFromClient.readDouble();
double area = radius * radius * Math.PI;
outputToClient.writeDouble(area);
Platform.runLater(() -> {
ta.appendText("Radius received from client: "
+ radius + '\n');
ta.appendText("Area is: " + area + '\n');
});
}
}
catch(IOException ex) {
ex.printStackTrace();
}
}).start();
}
}
Вот где мне нужно добавить код, чтобы все это работало
/*
* To change this license header, choose License Headers in Project
Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package hwch33;
/**
*
* @author
*/
public class HWCH33 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
}
}
Не уверен, как построить главную отсюда.
Я пытался сформировать один, но не могу понять это правильно. Я либо получаю статическую ошибку, либо она вообще не работает.
Любая помощь приветствуется. Не включал ни одну из моих предыдущих попыток, потому что они бесполезны, и я избавился от них всех.