如何将读取的文件内容在java图形界面上显示 求大神

这是图形界面
package plane;
import java.awt.*;
import javax.swing.*;
import javax.swing.border.TitledBorder;
public class main{
public static void main(String[] args)
{
JFrame frame = new JFrame("机场的起飞和着陆管理模拟");
JLabel l1=new JLabel("1号跑道：",JLabel.LEFT);
JLabel l2=new JLabel("2号跑道：",JLabel.LEFT);
JLabel l3=new JLabel("3号跑道：",JLabel.LEFT);
JLabel l4=new JLabel("起飞队列：",JLabel.LEFT);
JLabel l5=new JLabel("着陆队列：",JLabel.LEFT);
JLabel l6=new JLabel("紧急降落飞机数：",JLabel.LEFT);
// List test=new List;
JLabel l7=new JLabel(Plane.List,JLabel.LEFT);
JPanel p1 = new JPanel();
p1.setSize(500, 500);
p1.setVisible(true);
JPanel p2 = new JPanel(new GridLayout(3, 1, 5, 5));
p2.setSize(500, 500);
p2.setVisible(true);
JPanel p3 = new JPanel(new GridLayout(3, 1, 5, 5));
p3.setSize(500, 500);
p3.setVisible(true);
p1.setBorder(new TitledBorder("航班表："));

p2.setBorder(new TitledBorder("跑道情况："));
p2.add(l1);
p2.add(l2);
p2.add(l3);
p3.setBorder(new TitledBorder("队列情况:"));
p3.add(l4);
p3.add(l5);
p3.add(l6);
frame.setLayout(new GridLayout(3,1,3,3));
frame.add(p1);
frame.add(p2);
frame.add(p3);
frame.setSize(1000, 1000);
// frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(3);
frame.setVisible(true);
}
}
这是读取文件的操作
import java.io.BufferedReader;import java.io.File;
import java.io.FileReader;
import java.io.FileNotFoundException;
import java.io.IOException;

public class List {

public static void main(String[] args)
{
File file = new File("time.txt");
StringBuffer contents = new StringBuffer();
BufferedReader reader = null;

try{
reader = new BufferedReader(new FileReader(file));
String text = null;

// repeat until all lines is read
while ((text = reader.readLine()) != null)
{
contents.append(text)
.append(System.getProperty(
"line.separator"));
}
} catch (FileNotFoundException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();

} finally{
try
{
if (reader != null)
{
reader.close();
}
}catch (IOException e)
{
e.printStackTrace();
}
}
// show file contents here
System.out.println(contents.toString());
}
}
求大神啊。。。。如何在航班表那显示文件内容啊啊啊啊啊啊啊