网络聊天室ppt.ppt

网络聊天室
网络程序设计案例
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程序运行界面如下:
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代码:
import .*;
import .*;
import ;
import .*;
import .*;
public class UDPmessage extends JFrame implements ActionListener {
private JTextArea text;
private JTextField ipText;
private JTextField sendText;
private JButton button;
private DatagramSocket socket;
private JScrollBar vsBar;
public UDPmessage() {
setTitle("UDP聊天程序");
setBounds(100, 100, 400, 300);
setDefaultCloseOperation();
setLayout(new BorderLayout());
text = new JTextArea();
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(false);
JScrollPane textPanel = new JScrollPane(text);
vsBar = ();
add(textPanel, );
JPanel panel = new JPanel();
BorderLayout panelLayout = new BorderLayout();
(5);
(panelLayout);
ipText = new JTextField("");
(ipText, );
sendText = new JTextField();
(sendText, );
button = new JButton("发送");
(button, );
add(panel, );
setVisible(true);
server();
(this);
}
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private void server() {
try {
s