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src/ClientGUI.java

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+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.net.*;
+import java.io.*;
+
+public class ClientGUI extends JFrame {
+
+    public static void Login() {
+        // Login frame settings
+        JFrame frame = new JFrame("Server login panel");
+        frame.setSize(350, 150);
+        frame.setResizable(false);
+        frame.setLocationRelativeTo(null);
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setVisible(true);
+
+        // Objects initialization
+        JTextArea textArea = new JTextArea();
+        JButton button = new JButton("submit");
+        JTextField textField = new JTextField("Type server IPv4");
+
+        // Control panel LHE objects
+        JPanel panel = new JPanel(new BorderLayout());
+        panel.add(textArea, BorderLayout.CENTER);
+        panel.add(textField, BorderLayout.PAGE_START);
+        panel.add(button, BorderLayout.PAGE_END);
+
+        // Adding objects to the login frame
+        frame.add(textField);
+        frame.add(button);
+        textField.setBounds(125, 20, 100, 25);
+        button.setBounds(137, 70, 75, 20);
+
+        // Button action listener
+        button.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+
+                System.out.println("Connecting to server");
+                frame.setVisible(false); // Hiding the login frame
+                String address = textField.getText();
+                int port = 65000;
+                try {
+                    ServerControlPanel(address, port);
+                } catch (IOException ex) {
+                    throw new RuntimeException(ex);
+                }
+
+            }
+        });
+    }
+
+    public static void ServerControlPanel(String address, int port) throws IOException {
+        // FRAME
+        JFrame serverFrame = new JFrame("Server control panel - LHE-Local_Host_Executer");
+        // frame configuration
+        serverFrame.setSize(800, 500);
+        serverFrame.setResizable(false);
+        serverFrame.setLocationRelativeTo(null);
+        serverFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+
+        // OBJECTS
+        // text area
+        JTextArea textArea = new JTextArea();
+        textArea.setEditable(false);
+        textArea.setLineWrap(true);
+        textArea.setWrapStyleWord(true);
+        // text field
+        JTextField textField = new JTextField("");  // First component as text field
+        // buttons
+        JButton EndSessionButton = new JButton("End session");
+        JButton submitbutton = new JButton("submit");
+
+
+        // PANEL
+        JPanel serverPanel = new JPanel();
+        // panel layout configuration
+        serverPanel.setLayout(new GridBagLayout());
+        GridBagConstraints c = new GridBagConstraints();
+
+
+        /*
+        c.fill      set if the grid is vertical or horizontal
+        c.ipady     make the object bigger
+        c.weightx   request any extra horizontal space
+        c.gridwidth width of the grid
+        c.gridx     x of the grid / align with other objects
+        c.gridy     y of the grid / row number
+        c.fill      GridBagConstraints.HORIZONTAL;
+        c.ipady     reset to default
+        c.weighty   request any extra vertical space
+        c.anchor    set the location
+        c.insets    padding
+        */
+        // LAYOUT
+        // text field layout
+        c.fill = GridBagConstraints.HORIZONTAL;
+        c.ipady = 20;
+        c.weightx = 0.33;
+        c.gridwidth = 1;
+        c.gridx = 2;
+        c.gridy = 0;
+        serverPanel.add(textField, c);
+        // submit button layout
+        c.ipady = 13;
+        c.gridx = 3;
+        c.gridy = 0;
+        serverPanel.add(submitbutton, c);
+        // text area layout
+        c.fill = GridBagConstraints.HORIZONTAL;
+        c.ipady = 300;
+        c.weightx = 0.0;
+        c.gridwidth = 5;
+        c.gridx = 0;
+        c.gridy = 2;
+        serverPanel.add(textArea, c);
+        // Add the EndSessionButton
+        c.fill = GridBagConstraints.HORIZONTAL;
+        c.ipady = 0;
+        c.weighty = 1.0;
+        c.anchor = GridBagConstraints.PAGE_END;
+        c.insets = new Insets(10, 0, 0, 0);
+        c.gridx = 2;
+        c.gridy = 2;
+        serverPanel.add(EndSessionButton, c);
+        serverFrame.add(serverPanel);
+        serverFrame.setVisible(true);
+
+        String line = textField.getText();
+        // establish a connection with the server
+        Socket socket = new Socket(address, port);
+
+        // get input from the terminal
+        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
+        BufferedReader ServerInput = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+        BufferedReader ServerInfo = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+
+        // send output to the server socket
+        DataOutputStream output = new DataOutputStream(socket.getOutputStream());
+
+        // string to read input
+        String os = ServerInput.readLine();
+        String info = ServerInfo.readLine();
+
+        textArea.append(info + "\n\n");
+        textArea.append("Server operating system: " + os + "\n");
+
+        // IP of the server and the client
+        String serverIP = socket.getLocalAddress().getHostAddress();
+        String clientIP = Inet4Address.getLocalHost().getHostAddress();
+
+        // ACTION LISTENER FOR BUTTONS
+        submitbutton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+            String line = textField.getText();
+            textArea.append(clientIP + " to " + serverIP + "$-" + line + "\n");
+            line = textField.getText();
+                try {
+                    output.writeUTF(line);
+                } catch (IOException ex) {
+                    throw new RuntimeException(ex);
+                }
+                textField.setText("");
+
+            }
+        });
+
+        EndSessionButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                System.exit(0);
+            }
+        });
+
+
+    }
+
+    public static void main(String[] args) {
+        Login();
+    }
+}