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PROGRAM FOR CREATION OF TABLE IN JAVA
Posted Date: 28 Apr 2008 Resource Type: Entertainment Category: Others
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Posted By: shirish Member Level: Bronze
Rating:  Points: 5
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/* CREATION OF TABLE */
import java.awt.*;
import java.io.*;
import javax.swing.*;
import javax.swing.JOptionPane.*;
import java.awt.event.*;
import java.awt.event.ItemEvent.*;
import java.lang.*;
class Obj implements Serializable
{
int nof,pri;
String nf[];
int typef[];
String name;
Object data[][];
boolean flag=false;
}
class Create extends JFrame implements ActionListener
{
Container c;
JButton create,show,save,exit;
JTable tab;
Obj info=new Obj();
FileOutputStream fos;
JScrollPane js;
public Create()
{
super("Create Table");
c=getContentPane();
c.setLayout(new FlowLayout());
setSize(500,500);
/* Create all the buttons and add actionliteners */
create=new JButton("CREATE");
c.add(create);
create.addActionListener(this);
show=new JButton("SHOW");
c.add(show);
show.addActionListener(this);
save=new JButton("SAVE");
c.add(save);
save.addActionListener(this);
exit=new JButton("EXIT");
c.add(exit);
exit.addActionListener(this);
show.setVisible(false);
save.setVisible(false);
exit.setVisible(false);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==create)
{
/* Get information about table */
info.name=JOptionPane.showInputDialog(null,"Enter name of table");
info.nof=Integer.parseInt(JOptionPane.showInputDialog(null,"Enter number of fields in table"));
info.nf=new String[info.nof];
info.typef=new int[info.nof];
int cnt=0;
while(cnt {
info.nf[cnt]=JOptionPane.showInputDialog(null,"Enter name of fileld");
info.typef[cnt]=Integer.parseInt(JOptionPane.showInputDialog(null,"Enter type of field \n 1.Integer\n 2.String"));
if(info.flag==false)
{
int res=Integer.parseInt(JOptionPane.showInputDialog(null,"Is it a primary key \n 1.Yes \n 2.No "));
if(res==1)
{
info.pri=cnt;
info.flag=true;
}
}
cnt++;
}
create.setVisible(false);
show.setVisible(true);
}
else if(e.getSource()==show)
{
info.data=new Object[30][info.nof];
tab=new JTable(info.data,info.nf);
int v1=ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED;
int h1=ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED;
js=new JScrollPane(tab,v1,h1);
js.setBounds(20,400,150,150);
show.setVisible(false);
save.setVisible(true);
exit.setVisible(true);
c.add(js);
}
else if(e.getSource()==save)
{
try
{
fos=new FileOutputStream(info.name+".txt");
ObjectOutputStream oos=new ObjectOutputStream(fos);
oos.writeObject(info);
JOptionPane.showMessageDialog(null,"Table "+info.name+" is saved");
oos.close();
fos.close();
}
catch(Exception e1)
{
System.out.println(e1);
}
}
else if(e.getSource()==exit)
{
System.exit(0);
}
}
public static void main(String[] arge)
{
Create a=new Create();
a.setSize(500,600);
a.show();
}
}
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Responses
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| Author: Shyni 31 May 2008 | Member Level: Gold Points : 2 | Very useful information. Thanks.
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