TeacherUI modify

Teacher/src/main/java/com/cfive/classroom/teacher/SendMessage.java

@@ -0,0 +1,28 @@
+package com.cfive.classroom.teacher;
+
+import javax.swing.*;
+
+public class SendMessage {
+    private  static final SendMessage sendMessage=new SendMessage();
+
+    private static  JFrame frame = new JFrame("SendMessage");
+    private JPanel rootPanel;
+    private JTextPane textPane1;
+    private JTextArea textArea1;
+    private JButton bt_send;
+
+    public static void main(String[] args) {
+        frame.setContentPane(sendMessage.rootPanel);
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.pack();
+        frame.setVisible(false);
+    }
+
+    public  void start(){
+        frame.setContentPane(sendMessage.rootPanel);
+        frame.setBounds(600,400,600,400);
+        frame.setResizable(false);
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setVisible(true);
+    }
+}