plzzzzzzzzz xplain this code
import java.awt.*;
import java.awt.event.*;
import java.awt.MenuItem.*;
import java.sql.*;
import java.util.Date;
import sun.jdbc.odbc.*;
import java.io.*;
public class RefillBooking extends Frame implements
ActionListener
{
Label l1,l2,l3,l4,l5,l6,l7,l8,l9,l10,l11,l12,l13;
Button exit,save,next,top,prev,botm,ad,show;
TextField
txtBookingNo,txtConsNo,txtBookingDt,txtConsName,txtAddr1,txt
PhNo,txtBookDtold,txtPrintDt,txtCMemoNo,txtOldDlryDt,adr2,ad
r3,tot,stnry,rmrk;
Date date=new Date();
String ConsName;
String Addr1;
public static void main(String sr[])
{
new RefillBooking().setVisible(true);
}
public RefillBooking()
{
super("Refill Booking");
Statement stmt;
ResultSet rs;
//PreparedStatement pst;
Connection con;
try
{
Class.forName
("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:Agency");
if (con!=null);
System.out.println
("connected");
stmt =con.createStatement
();
}
catch(Exception e1)
{
System.out.println
(e1);
}
setSize(1280,800);
setBackground(Color.lightGray);
setLayout(null);
l1=new Label("Booking No");
l1.setBounds(260,60,90,30);
l1.setFont(new Font
("TimesRoman",Font.PLAIN,15));
l1.setAlignment(Label.CENTER);
add(l1);
l2=new Label("CONSMR NO");
l2.setBounds(30,60,90,30);
l2.setFont(new Font("TimesRoman",Font.PLAIN,15));
l2.setAlignment(Label.CENTER);
add(l2);
l3=new Label("Book DATE (mm/dd/yyyy)");
l3.setBounds(520,60,190,30);
l3.setFont(new Font
("TimesRoman",Font.PLAIN,15));
l3.setAlignment(Label.CENTER);
add(l3);
l4=new Label("NAME");
l4.setBounds(30,150,45,30);
l4.setFont(new Font
("TimesRoman",Font.PLAIN,15));
l4.setAlignment(Label.CENTER);
add(l4);
l5=new Label("ADRS");
l5.setBounds(30,220,45,30);
l5.setFont(new Font
("TimesRoman",Font.PLAIN,15));
l5.setAlignment(Label.CENTER);
add(l5);
l6=new Label("PH NO");
l6.setBounds(500,150,45,30);
l6.setFont(new Font
("TimesRoman",Font.PLAIN,15));
l6.setAlignment(Label.CENTER);
add(l6);
l7=new Label("OldBkDt");
l7.setBounds(30,390,55,30);
l7.setFont(new Font
("TimesRoman",Font.PLAIN,15));
l7.setAlignment(Label.CENTER);
add(l7);
l8=new Label("Print Date");
l8.setBounds(320,390,65,30);
l8.setFont(new Font("TimesRoman",Font.PLAIN,15));
l8.setAlignment(Label.CENTER);
add(l8);
l9=new Label("CMemo No");
l9.setBounds(700,390,65,30);
l9.setFont(new Font
("TimesRoman",Font.PLAIN,15));
l9.setAlignment(Label.CENTER);
add(l9);
l10=new Label("Del Date");
l10.setBounds(550,390,55,30);
l10.setFont(new Font
("TimesRoman",Font.PLAIN,15));
l10.setAlignment(Label.CENTER);
add(l10);
l13=new Label("REMARKS");
l13.setBounds
(30,630,85,30);
l13.setFont(new Font
("TimesRoman",Font.PLAIN,15));
l13.setAlignment
(Label.CENTER);
add(l13);
txtBookingNo=new TextField();
txtBookingNo.setBounds(375,60,80,30);
txtBookingNo.setBackground(Color.white);
add(txtBookingNo);
txtConsNo=new TextField();
txtConsNo.setBounds(130,60,80,30);
txtConsNo.setBackground(Color.white);
add(txtConsNo);
txtBookingDt=new TextField();
txtBookingDt.setBounds(750,60,80,30);
txtBookingDt.setBackground(Color.white);
add(txtBookingDt);
txtConsName=new TextField();
txtConsName.setBounds(100,150,200,30);
txtConsName.setBackground(Color.white);
add(txtConsName);
txtAddr1=new TextField();
txtAddr1.setBounds(100,220,350,30);
txtAddr1.setBackground(Color.white);
add(txtAddr1);
adr2=new TextField();
adr2.setBounds(100,250,350,30);
adr2.setBackground(Color.white);
add(adr2);
adr3=new TextField();
adr3.setBounds(100,280,350,30);
adr3.setBackground(Color.white);
add(adr3);
txtPhNo=new TextField();
txtPhNo.setBounds(570,150,150,30);
txtPhNo.setBackground(Color.white);
add(txtPhNo);
txtBookDtold=new TextField();
txtBookDtold.setBounds(30,440,60,30);
txtBookDtold.setBackground(Color.white);
add(txtBookDtold);
txtPrintDt=new TextField();
txtPrintDt.setBounds(320,440,60,30);
txtPrintDt.setBackground(Color.white);
add(txtPrintDt);
txtCMemoNo=new TextField();
txtCMemoNo.setBounds(700,440,60,30);
txtCMemoNo.setBackground(Color.white);
add(txtCMemoNo);
txtOldDlryDt=new TextField();
txtOldDlryDt.setBounds(550,440,60,30);
txtOldDlryDt.setBackground(Color.white);
add(txtOldDlryDt);
rmrk=new TextField();
rmrk.setBounds(140,630,600,30);
rmrk.setBackground(Color.white);
add(rmrk);
exit=new Button("EXIT");
exit.setBackground(Color.orange);
exit.setBounds(760,700,40,40);
exit.addActionListener(this);
add(exit);
save=new Button("SAVE");
save.setBackground(Color.orange);
save.setBounds(715,700,40,40);
save.addActionListener(this);
add(save);
next=new Button("NEXT");
next.setBackground(Color.orange);
next.setBounds(90,700,40,40);
next.addActionListener(this);
add(next);
top=new Button("TOP");
top.setBackground(Color.orange);
top.setBounds(0,700,40,40);
top.addActionListener(this);
add(top);
prev=new Button("PREV");
prev.setBackground(Color.orange);
prev.setBounds(45,700,40,40);
prev.addActionListener(this);
add(prev);
botm=new Button("BOTM");
botm.setBackground
(Color.orange);
botm.setBounds
(135,700,40,40);
botm.addActionListener
(this);
add(botm);
ad=new Button("ADD");
ad.setBackground
(Color.orange);
ad.setBounds
(300,700,40,40);
ad.addActionListener
(this);
add(ad);
show=new Button("SHOW");
show.setBackground
(Color.orange);
show.setBounds
(345,700,40,40);
show.addActionListener
(this);
add(show);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==exit)
{
this.dispose();
System.exit(0);
}
if(e.getSource()==save)
{
int bkflag=1;
try
{
Connection
con=DriverManager.getConnection("jdbc:odbc:Agency");
PreparedStatement
pst=con.prepareStatement("INSERT INTO RefillBooking VALUES
(?,?,?,?)");
pst.setInt
(1,Integer.parseInt(txtBookingNo.getText()));
pst.setInt
(2,Integer.parseInt(txtConsNo.getText()));
pst.setString
(3,txtBookingDt.getText());
pst.setInt(4,bkflag);
/* pst.setString
(4,txtConsName.getText());
pst.setString
(6,txtAddr1.getText());
pst.setString(7,adr2.getText
());
pst.setString(8,adr3.getText
());
pst.setInt(9,Integer.parseInt
(txtCylQty.getText()));
pst.setInt
(10,Integer.parseInt(txtCylDep.getText()));
pst.setInt
(11,Integer.parseInt(txtRegQty.getText()));
pst.setInt
(12,Integer.parseInt(txtRegDep.getText()));
pst.setInt
(13,Integer.parseInt(tot.getText()));
pst.setInt
(14,Integer.parseInt(stnry.getText()));
pst.setString(15,rmrk.getText
());*/
pst.executeUpdate();
con.close();
}
catch(Exception e2)
{System.out.println(e2);}
}
if(e.getSource()==show)
{
System.out.println("entered if
body");
try
{
//to bring consumer's
details
Connection
con2=DriverManager.getConnection("jdbc:odbc:Agency");
int consumer=Integer.parseInt
(txtConsNo.getText());
PreparedStatement
ps2=con2.prepareStatement("SELECT * FROM NewCon WHERE
Cons_No=?");
ps2.setInt(1,consumer);
ResultSet rs2=
ps2.executeQuery();
while(rs2.next())
{
System.out.print
("entered while"+rs2.getString(2));
txtConsName.setText
(rs2.getString("Cons_Name"));
txtAddr1.setText
(rs2.getString("Adress1"));
txtPhNo.setText
(""+rs2.getInt("Ph_No"));
adr2.setText
(rs2.getString("Adress2"));
adr3.setText
(rs2.getString("Adress3"));
rmrk.setText("");
}
//Statement
stmt3=con2.createStatement();
//ResultSet
rs3=stmt3.executeQuery("SELECT
CMemoNo,CMemo_Date,DeliveryDate FROM CashMemo where
Cons_No="+consumer);
con2.close();
}
catch(Exception e2)
{System.out.println(e2);}
}
if(e.getSource()==ad)
{
int newbkno=0;
System.out.println("entered if body");
try
{
//to clear textboxes
txtConsName.setText("");
txtAddr1.setText("");
txtBookingNo.setText("");
txtPhNo.setText("");
adr2.setText("");
adr3.setText("");
rmrk.setText("");
txtConsNo.setText("");
txtBookingDt.setText("" + date);
txtBookDtold.setText("");
txtPrintDt.setText("");
txtCMemoNo.setText("");
txtOldDlryDt.setText("");
//to generate bookin no
System.out.println("entered the
try:");
Connection
con1=DriverManager.getConnection("jdbc:odbc:Agency");
Statement
stmt1=con1.createStatement();
ResultSet rs1=stmt1.executeQuery
("SELECT BookingNo FROM RefillBooking ");
while(rs1.next())
{
txtBookingNo.setText
(""+rs1.getInt(1));
}
newbkno=Integer.parseInt
(txtBookingNo.getText());
System.out.println(newbkno);
newbkno=newbkno+1;
txtBookingNo.setText(""+newbkno);
}
catch(Exception e4){System.out.println(e4);}
}
}
}
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plzzzzzzzzz xplain this code import java.awt.*; import java.awt.event.*; //import java.awt.MenuItem.*; public class MenuForm extends Frame implements ActionListener { MenuBar mb=new MenuBar(); Menu m1=new Menu("Master"); Menu m2 =new Menu("Transactions"); Menu m3=new Menu("Queries"); Menu m4=new Menu("Reports"); Menu m5=new Menu("Daily/Weekly"); Menu m6=new Menu("Housekeeping"); Menu m7=new Menu("About"); Menu m8=new Menu("Utilities/Tools"); Menu m9=new Menu("exit"); MenuItem m11=new MenuItem("consumer master"); MenuItem m12=new MenuItem(""); MenuItem m13=new MenuItem(""); MenuItem m21=new MenuItem("New Connection"); MenuItem m22=new MenuItem("Refill Booking"); MenuItem m23=new MenuItem("Shop Delivery"); MenuItem m51=new MenuItem("Mrk Dlry"); MenuItem m91=new MenuItem("Quit"); /*MenuItem m131=new MenuItem(" "); MenuItem m132=new MenuItem(" "); MenuItem m134=new MenuItem(" ");*/ Font f=new Font("TimesRoman",Font.BOLD,16); Frame f1; public static void main(String args[]) { new MenuForm().setVisible(true); } public MenuForm() { super("Gas Agency Main Menu"); setSize(1280,800); setBackground(Color.lightGray); setLayout(null); setMenuBar(mb); /*m1.setFont(new Font("TimesRoman", Font.BOLD,16)); m2.setFont(new Font("TimesRoman", Font.BOLD,16)); m3.setFont(new Font("TimesRoman", Font.BOLD,16));*/ mb.add(m1); mb.add(m2); mb.add(m3); mb.add(m4); mb.add(m5); mb.add(m6); mb.add(m7); mb.add(m8); mb.add(m9); m1.add(m11); m1.add(m12); m1.add(m13); m2.add(m21); m2.add(m22); m2.add(m23); m5.add(m51); m9.add(m91); //m3.add(m31); /*m13.setEnabled(false); m13.add(m131); m13.add(m132); m13.add(m133); m13.add(m134); m13.add(m135);*/ setVisible(true); /*m11.addActionListener(this); m12.addActionListener(this); m13.addActionListener(this); m2.addActionListener(this); m3.addActionListener(this);*/ m21.addActionListener(this); m22.addActionListener(this); m23.addActionListener(this); /*m31.addActionListener(this); m131.addActionListener(this); m132.addActionListener(this); m133.addActionListener(this); m134.addActionListener(this); m135.addActionListener(this);*/ m51.addActionListener(this); m91.addActionListener(this); } public void actionPerformed(ActionEvent e) { /*if(e.getSource()==m11) { } if(e.getSource()==m12) { } if( (e.getSource()==m131) || (e.getSource() ==m132) || (e.getSource()==m133) || (e.getSource()==m134) || (e.getSource()==m135) ) { }*/ if(e.getSource()==m21) { NewConnection nc=new NewConnection (); nc.setVisible(true); this.dispose(); } if(e.getSource()==m22) { RefillBooking rb=new RefillBooking (); rb.setVisible(true); this.dispose(); } if(e.getSource()==m23) { ShopDelivery sd=new ShopDelivery(); sd.setVisible(true); this.dispose(); } if(e.getSource()==m51) { MarkDelivery mrk=new MarkDelivery(); mrk.setVisible (true); this.dispose(); } if(e.getSource()==m91) { this.dispose(); System.exit(0); } } }
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