//中央空调模拟器的客户端 import java.net.*;import javax.swing.*;import javax.swing.event.*;import java.awt.*;import java.awt.event.*;import java.io.*;public class c{ public static void main(String args[]) {  c_win w=new c_win();  w.setVisible(true); }}class c_win extends JFrame implements ActionListener{  Label label1=new Label("房间号:"); TextField tf1=new TextField(); Label label2=new Label("目标温度:"); TextField tf2=new TextField(); Label label3=new Label("当前温度："); TextField tf3=new TextField(); Button button1=new Button("连接"); Button button2=new Button("取消"); Button button3=new Button("保持"); Button button4=new Button("改变"); String s1=null,s2=null; c_win() {  Container c=this.getContentPane();  c.setLayout(new GridLayout(5,3));    c.add(label1);    c.add(tf1);    c.add(label2);    c.add(tf2);  c.add(label3);  c.add(tf3);    c.add(button1);  button1.addActionListener(this);    c.add(button2);  button2.addActionListener(this);    c.add(button3);  button3.addActionListener(this);    c.add(button4);  button4.addActionListener(this);    this.setBounds(300,300,300,200);  this.setVisible(true);  this.addWindowListener(new WindowAdapter()      {       public void windowClosing(WindowEvent we)       {        System.exit(0);               }      }); } public void actionPerformed(ActionEvent ae) {  Socket sd=null;  DataInputStream in=null;  DataOutputStream out=null;  s1=tf1.getText().trim();  s2=tf2.getText().trim();  try  {   sd=new Socket("localhost",9898);   System.out.println("success...");      }  catch(Exception e){System.out.println("false...");}  try  {   in=new DataInputStream(sd.getInputStream());   out=new DataOutputStream(sd.getOutputStream());    }  catch(Exception e){}  if (ae.getSource()==button1)  {   try   {    out.writeUTF("#ROOM#"+tf1.getText()+","+tf2.getText()+","+tf3.getText()+","+"输热风");   }   catch(Exception e){}  }  if (ae.getSource()==button2)  {   try   {    out.writeUTF("#LEAVE#"+tf1.getText().trim());   }   catch(Exception e){}  }  if(ae.getSource()==button3)  {   try   {    out.writeUTF("#TEM#"+tf1.getText().trim()+","+tf3.getText().trim());   }   catch(Exception e){}  }  if(ae.getSource()==button4)  {   try   {    out.writeUTF("#CHANGETEM#"+tf1.getText().trim()+","+tf2.getText().trim()+","+"吹热风");   }   catch(Exception e){}  } } }

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