Вот мой код:
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.table.*;
import javax.swing.JOptionPane;
import java.util.*;
import java.applet.*;
/*<applet code=tabledemo.class height=300 width=300></applet>*/
public class tabledemo extends JApplet implements ActionListener
{
JScrollPane jsp1;
JPanel jp,jp1,jp2,jp3;
JTable jt1;
int i,j;
DefaultTableModel tm=new DefaultTableModel(3,3);
String data[][]={{"1001","Ram","BCA"},
{"1002","Sham","MCA"},
{"1003","Mohan","BCA"}};
String head[]={"Rollno","Name","Course"};
JTextField jtf1,jtf2,jtf3;
JButton b1,b2,b3,b4;
public void init()
{
jp=new JPanel();
jp.setLayout(new BorderLayout());
jp1=new JPanel();
jp1.setLayout(new BorderLayout());
jp2=new JPanel();
jp2.setLayout(new FlowLayout());
jp3=new JPanel();
jp3.setLayout(new FlowLayout());
jt1=new JTable();
jt1.setModel(tm);
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
tm.setValueAt(data[i][j],i,j);
}
}
jp1.add(jt1,BorderLayout.CENTER);
jp.add(jp1,BorderLayout.CENTER);
jtf1=new JTextField(25);
jtf2=new JTextField(25);
jtf3=new JTextField(25);
jp2.add(jtf1);
jp2.add(jtf2);
jp2.add(jtf3);
b1=new JButton("Add Row");
b2=new JButton("Display Count");
b3=new JButton("Coursewise Count");
b4=new JButton("Exit");
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b4.addActionListener(this);
jp1.add(jp2,BorderLayout.SOUTH);
jp3.add(b1);
jp3.add(b2);
jp3.add(b3);
jp3.add(b4);
jp.add(jp3,BorderLayout.SOUTH);
int v,h;
v=ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED;
h=ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED;
jsp1=new JScrollPane(jp,v,h);
Container c=getContentPane();
c.add(jsp1);
}
public void actionPerformed(ActionEvent ae)
{
if(ae.getActionCommand().equals("Add Row"))
{
String [] r={jtf1.getText(),jtf2.getText(),jtf3.getText()};
tm.addRow(r);
}
else if(ae.getActionCommand().equals("Display Count"))
{
String name;
name=JOptionPane.showInputDialog("enter student name:");
jtf1.setText(name);
}
else if(ae.getActionCommand().equals("Exit"))
{
int ans=0;
ans=JOptionPane.showConfirmDialog(null,"Are you sure");
if(ans==JOptionPane.YES_OPTION)
{
dispose();
System.exit(0);
//processEvent(new WindowEvent(this, WindowEvent.WINDOW_CLOSING));
}
}
}
}