minimum spanning tree

import java.awt.*;
import javax.swing.*;
/*
*/
public class mst extends JApplet
{
public void init()
{
Container contentPane = getContentPane();
contentPane.setLayout(new FlowLayout());

JLabel jl = new JLabel("Depth Latency");
JTextField tf1 = new JTextField(20);

JLabel j2 = new JLabel("No of HOPs");
JTextField tf2 = new JTextField(20);

JTextArea t1 = new JTextArea("",20,30);
//t1.setEditable(false);
//t1.setRows(20);
//t1.setColumns(50);
JButton b3 = new JButton("MST");
JButton b4 = new JButton("KLS");
JButton b5 = new JButton("DBSPT with circular-po");
JButton b7 = new JButton("DBSPT without circular-po");
JButton b6 = new JButton("Editpoints");

contentPane.add(jl);
contentPane.add(tf1);

contentPane.add(j2);
contentPane.add(tf2);

contentPane.add(t1);
contentPane.add(b3);

contentPane.add(b4);
contentPane.add(b5);

contentPane.add(b6);
contentPane.add(b7);
}
}