client.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.text.SimpleDateFormat;
import java.util.*;
import java.net.*;
import java.io.*;

class Client implements ActionListener {

    JTextField text;
    static JPanel p2;
    static Box vertical = Box.createVerticalBox();

    static JFrame f = new JFrame();
    static DataOutputStream dout;

    Client() {
        f.setLayout(null);

        JPanel p1 = new JPanel();
        p1.setBackground(new Color(7,94,84));
        p1.setBounds(0,0,450,70);
        p1.setLayout(null);
        f.add(p1);

        ImageIcon i1 = new ImageIcon("icons/3 (1).png");
        Image i2 = i1.getImage().getScaledInstance(25,25,Image.SCALE_DEFAULT);
        JLabel back = new JLabel(new ImageIcon(i2));
        back.setBounds(5,20,25,25);
        p1.add(back);


        ImageIcon i7 = new ImageIcon("icons/video (1).png"); 
        Image i8 = i7.getImage().getScaledInstance(50,50,Image.SCALE_DEFAULT);
        ImageIcon i9 = new ImageIcon (i8); 
        JLabel video = new JLabel (i9); 
        video.setBounds(300,20,30,30);
        p1.add(video);


        ImageIcon i10 = new ImageIcon("icons/phone (1).png"); 
        Image i11 = i10.getImage().getScaledInstance(50,50,Image.SCALE_DEFAULT); 
        ImageIcon i12 = new ImageIcon (i11); 
        JLabel phone = new JLabel (i12); 
        phone.setBounds(360,20,35,30); 
        p1.add(phone);


        ImageIcon i13 = new ImageIcon("icons/3icon (1).png"); 
        Image i14 = i13.getImage().getScaledInstance(50,50,Image.SCALE_DEFAULT); 
        ImageIcon i15 = new ImageIcon (i14); 
        JLabel icon3 = new JLabel (i15); 
        icon3.setBounds(400,20,30,30); 
        p1.add(icon3);

        back.addMouseListener(new MouseAdapter(){
            public void mouseClicked(MouseEvent ae){
                System.exit(0);
            }
        });

        ImageIcon i4 = new ImageIcon("icons/mirzapur.png");
        Image i5 = i4.getImage().getScaledInstance(50,50,Image.SCALE_DEFAULT);
        JLabel profile = new JLabel(new ImageIcon(i5));
        profile.setBounds(40,10,50,50);
        p1.add(profile);

        JLabel name = new JLabel("Friend");
        name.setBounds(110,15,100,18);
        name.setForeground(Color.WHITE);
        name.setFont(new Font ("SAN_SERIF", Font.BOLD,18));
        p1.add(name);

        JLabel status = new JLabel("Online");
        status.setBounds(110,35,100,18);
        status.setForeground(Color.WHITE);
        status.setFont(new Font ("SAN_SERIF", Font.BOLD,14));
        p1.add(status);

        p2 = new JPanel();
        p2.setLayout(new BorderLayout());

        JScrollPane scroll = new JScrollPane(p2);
        scroll.setBounds(5,75,425,510);
        scroll.setBorder(null);
        f.add(scroll);

        text = new JTextField();
        text.setBounds(5,600,310,40);
        text.setFont(new Font("SAN_SERIF", Font.PLAIN,16));
        f.add(text);

        JButton send = new JButton("send");
        send.setBounds(320,600,100,40);
        send.setBackground(new Color(7,94,84));
        send.setForeground(Color.WHITE);
        send.setFont(new Font("SAN_SERIF", Font.PLAIN,16));
        send.addActionListener(this);
        f.add(send);

        f.setSize(450,700);
        f.setVisible(true);
        f.setLocation(200,50);
        f.getContentPane().setBackground(Color.WHITE);
    }

    public void actionPerformed(ActionEvent ae){
        try{
            String out = text.getText().trim();
            if(out.isEmpty()) return;

            // SEND TO SERVER
            dout.writeUTF(out);
            dout.flush();   

            JPanel p3 = formatLabel(out);

            JPanel right = new JPanel(new BorderLayout());
            right.add(p3, BorderLayout.LINE_END);

            vertical.add(right);
            vertical.add(Box.createVerticalStrut(15));

            p2.add(vertical, BorderLayout.PAGE_START);

            text.setText("");

            vertical.revalidate();   
            f.repaint();

        }catch(Exception e){
            e.printStackTrace();
        }
    }

    public static JPanel formatLabel(String out){
        JPanel panel = new JPanel();
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));

        JLabel output = new JLabel("<html><p style=\"width:150px\">" + out + "</p></html>");
        panel.add(output);

        Calendar cal = Calendar.getInstance();
        SimpleDateFormat sdf = new SimpleDateFormat("HH:mm");

        JLabel time = new JLabel(sdf.format(cal.getTime()));
        panel.add(time);

        return panel;
    }

    public static void main(String[] args){
        new Client();

        try{
            Socket s = new Socket("127.0.0.1",6001);
            System.out.println("Connected to server");

            DataInputStream din = new DataInputStream(s.getInputStream());
            dout = new DataOutputStream(s.getOutputStream());

            // RECEIVING THREAD
            new Thread(() -> {
                try{
                    while(true){
                        String msg = din.readUTF();
                        System.out.println("Received: " + msg); // 

                        JPanel panel = formatLabel(msg);

                        JPanel left = new JPanel(new BorderLayout());
                        left.add(panel, BorderLayout.LINE_START);

                        SwingUtilities.invokeLater(() -> {
                            vertical.add(left);
                            vertical.add(Box.createVerticalStrut(15));
                            p2.add(vertical, BorderLayout.PAGE_START); 
                            vertical.revalidate();   
                            f.repaint();
                        });
                    }
                }catch(Exception e){
                    e.printStackTrace();
                }
            }).start();

        }catch(Exception e){
            e.printStackTrace();
        }
    }
}