Java program for Prof.Huda

2- Predefined exception "IOException" to handle negative inputs.

3- Predefined exception "NumberFormatException" to handle wrong data type.

4- Predefined exception “PrinterException”

Hardware Resources:

· Manufacture: Microsoft Corporation.

· Processor: Intel(R) Core(TM) i3-4020Y CPU @ 1.50GHz.

· Installed Memory(RAM): 4 GB.

· System Type: 64-bit Operating System, x64-based processor.

Software Resources:

· Adobe Photoshop CS6.

· JCreator LE version 5.10

· Microsoft Word, 2013.

Program Codes:

1. Node Class:

public class Node

{

public String OName;

public String cond;

public String plate;

public double Pprice;

public int Oss;

public Node next;

public Node(String a,String b,String c, int d, double e)

{

OName=a;

cond=b;

plate=c;

Oss=d;

Pprice=e;

next=null;

}

public Node(String a,String b,String c, int d, double e, Node n)

{

OName=a;

cond=b;

plate=c;

Oss=d;

Pprice=e;

next=n;

}

}

2. Process Class:

public class process

{

public Node head,tail;

public process()

{

head=tail=null;

}

public void addToHead(String e1,String e2, String e3, int e4,double e5)

{

head=new Node (e1,e2,e3,e4,e5,head);

if(tail == null)

tail=head;

}

public String SearchByOss(int e1)

{

String s;

Node tmp;

for(tmp=head;tmp!=null && tmp.Oss != e1; tmp=tmp.next);

if(tmp!=null)

s="The " + e1 + " is found in the list\n"+

tmp.OName+"\t"+tmp.Oss+"\t"+tmp.Pprice+"\t"+tmp.cond+"\t"+tmp.plate;

else

s="The " + e1 + " is NOT found in the list\n";

return s;

}

public String printing()

{

String s="";

Node tmp;

for( tmp=head;tmp!=null;tmp=tmp.next)

s=tmp.OName+"\t "+tmp.Oss+"\t\t "+tmp.cond+"\t\t "+tmp.Pprice+"\t "+tmp.plate+"\n"+s;

return s;

}

public String updateByOss(int a1,String e1,String e2, String e3, int e4,double e5)

{

Node tmp;

for(tmp=head;tmp!=null && tmp.Oss != a1; tmp=tmp.next);

if(tmp!=null)

{

tmp.OName=e1;

tmp.cond=e2;

tmp.plate=e3;

tmp.Oss=e4;

tmp.Pprice=e5;

return("\n The record updated successfully.\n"+

tmp.OName+"\t"+tmp.Oss+"\t"+tmp.cond+"\t"+tmp.Pprice+"\t"+tmp.plate);

}

else

return( a1 + " is not found\n");

}

public String delete(int e1)

{

if(head!=null)

{

if(head == tail && head.Oss==e1)

{

head=tail=null;

return e1+"\n is deleted\n";}

else if (head.Oss==e1){

head=head.next;

return e1+" is deleted\n";

}

else

{

Node pred,tmp;

for(pred=head,tmp=head.next; tmp!=null && tmp.Oss != e1;

pred=pred.next,tmp=tmp.next);

if (tmp!=null)

{

pred.next=tmp.next;

if(tmp==tail)

tail=pred;

return e1+"\n is deleted\n";

}

}

}

return e1+" is not found\n";

}

}

3. Test Class:

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.io.*;

import java.text.*;

import java.awt.print.*;

public class test extends JFrame implements ActionListener

{

public String Oname,cond, plate;

public int Oss,Ossupdate;

public double Pprice;

JPanel p1,p2,p3,p4;

JScrollPane scrollpane;

JTextField t1,t2,t3,t4,t5;

JTextArea ta1;

JButton b1,b2,b3,b4;

JLabel l1,l2,l3,l4,j1,l11;

Color c1,c2,c3,c4;

Font f1,f2,f3;

JMenuBar menuBar = new JMenuBar();

JMenu ProductCodeMenu = new JMenu("Choose");

JMenuItem Product1 = new JMenuItem("New");

JMenuItem Product2 = new JMenuItem("Used");

JMenuBar menuBar1 = new JMenuBar();

JMenu CodeMenu = new JMenu("Choose an operation");

JMenuItem P1 = new JMenuItem("Update");

JMenuItem P2 = new JMenuItem("Delete");

JMenuItem P3 = new JMenuItem("Search");

public process P= new process();

public test()

{

f1=new Font("Times New Roman",Font.BOLD,20);

f2=new Font("Times New Roman",Font.BOLD,18);

f3=new Font("Times New Roman",Font.BOLD,20);

c1=new Color(20,161,149); //Drop down color

c4=new Color(20,161,149); //Buttons color

setSize(500,500);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setLayout(new BorderLayout());

p4=new JPanel();

j1=new JLabel();

j1.setIcon(new ImageIcon("logo.png"));

p4.add(j1);

p4.setBackground(c3);

add(p4,BorderLayout.NORTH);

validate();

p1=new JPanel();

p1.setSize(100,200);

p1.setLayout(new GridLayout(6,2));

l1=new JLabel("Plate Owner Name");

l1.setForeground(c2);

l1.setFont(f1);

p1.add(l1);

t3=new JTextField();

t3.setForeground(c1);

t3.setFont(f2);

p1.add(t3);

l2=new JLabel("Owner Socia Security Number ");

l2.setFont(f1);

p1.add(l2);

t2=new JTextField();

t2.setForeground(c1);

t2.setFont(f2);

p1.add(t2);

l4=new JLabel("Plate Information");

l4.setForeground(c2);

l4.setFont(f1);

p1.add(l4);

t5=new JTextField();

t5.setForeground(c1);

t5.setFont(f2);

p1.add(t5);

l11=new JLabel("Plate Price");

l11.setFont(f1);

p1.add(l11);

t4=new JTextField();

t4.setForeground(c1);

t4.setFont(f2);

p1.add(t4);

l3=new JLabel("Condition ");

l3.setForeground(c2);

l3.setFont(f1);

p1.add(l3);

menuBar.add(ProductCodeMenu);

ProductCodeMenu.setForeground(Color.WHITE);

ProductCodeMenu.setFont(f2);

menuBar.setBackground(c1);

ProductCodeMenu.add(Product1);

Product1.setForeground(Color.WHITE);

Product1.setFont(f2);

Product1.setBackground(c1);

ProductCodeMenu.add(Product2);

Product2.setForeground(Color.WHITE);

Product2.setFont(f2);

Product2.setBackground(c1);

setJMenuBar(menuBar);

Product1.addActionListener(this);

Product2.addActionListener(this);

p1.add(menuBar);

t1=new JTextField("Write the Social Security Number to do an operation");

p1.add(t1);

menuBar1.add(CodeMenu);

CodeMenu.setForeground(Color.WHITE);

CodeMenu.setFont(f2);

menuBar1.setBackground(c1);

CodeMenu.add(P1);

P1.setForeground(Color.WHITE);

P1.setFont(f2);

P1.setBackground(c1);

CodeMenu.add(P2);

P2.setForeground(Color.WHITE);

P2.setFont(f2);

P2.setBackground(c1);

CodeMenu.add(P3);

P3.setForeground(Color.WHITE);

P3.setFont(f2);

P3.setBackground(c1);

setJMenuBar(menuBar1);

P1.addActionListener(this);

P2.addActionListener(this);

P3.addActionListener(this);

p1.add(menuBar1);

add(p1,BorderLayout.CENTER);

p2=new JPanel();

p2.setLayout(new FlowLayout());

b1=new JButton("Add");

b1.setBackground(c4);

b1.setForeground(Color.WHITE);

b1.setFont(f2);

b1.addActionListener(this);

b1.setToolTipText("To add a record to the list");

p2.add(b1);

b2=new JButton("Clear");

b2.setBackground(c4);

b2.setForeground(Color.WHITE);

b2.setFont(f2);

b2.addActionListener(this);

b2.setToolTipText("Reset fields");

p2.add(b2);

b3=new JButton("Print");

b3.setBackground(c4);

b3.setForeground(Color.WHITE);

b3.setFont(f2);

b3.addActionListener(this);

b3.setToolTipText("Click to print the List");

p2.add(b3);

b4=new JButton("Show list");

b4.setBackground(c4);

b4.setForeground(Color.WHITE);

b4.setFont(f2);

b4.addActionListener(this);

b4.setToolTipText("Click to show the List");

p2.add(b4);

p2.setBackground(c3);

add(p2,BorderLayout.SOUTH);

p3=new JPanel();

p3.setLayout(new FlowLayout());

p3.setBackground(c3);

ta1=new JTextArea(10,100);

ta1.setText("Owner's name\t Social Security Number\t Plate's Information\t Price\t Condition\n");

p3.add(ta1);

add(p3,BorderLayout.EAST);

scrollpane = new JScrollPane(ta1);

add(scrollpane, BorderLayout.EAST);

pack();

scrollpane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);

scrollpane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);

}

public void actionPerformed(ActionEvent e)

{

String k=e.getActionCommand();

if(k.equals("New"))

{

ProductCodeMenu.setText("New");

}

if(k.equals("Used"))

{

ProductCodeMenu.setText("Used");

}

if(k.equals("Add"))

{

try{

Oname=t3.getText();

plate=t5.getText();

Oss=Integer.parseInt(t2.getText());

cond=ProductCodeMenu.getText();

Pprice=Double.parseDouble(t4.getText());

if((Oss<0)||(Pprice<0)) throw new IOException("Error: No negative values allowed") ;

if(t5.getText().equals("")||t3.getText().equals("")||t4.getText().equals("")||t2.getText().equals("")||ProductCodeMenu.getText().equals("Choose"))

{

String messageF= "Addition failed";

JOptionPane.showMessageDialog(null,messageF);

}

else{

P.addToHead(Oname,plate,cond,Oss,Pprice);

String messageS= "Record is added";

JOptionPane.showMessageDialog(null,messageS);

ta1.append(P.printing()+ "\n");

}

}

catch (IOException f)

{

JOptionPane.showMessageDialog(null,f.getMessage(),null,JOptionPane.ERROR_MESSAGE);

}

catch(NumberFormatException g)

{

JOptionPane.showMessageDialog(null,"Error: Wrong data type",null,JOptionPane.ERROR_MESSAGE);

}

}

if(k.equals("Print"))

{

MessageFormat header=new MessageFormat("Plate list");

MessageFormat footer=new MessageFormat("page{0,number,integer}");

try{

boolean complete=ta1.print();

if(complete)

{

JOptionPane.showMessageDialog(null,"Done printing","Information",JOptionPane.INFORMATION_MESSAGE);

}

else

{

JOptionPane.showMessageDialog(null,"Printing!","Printer",JOptionPane.ERROR_MESSAGE);

}

}

catch(PrinterException c)

{

JOptionPane.showMessageDialog(null,c);

}

}

if(k.equals("Clear"))

{

CodeMenu.setText("Choose an operation");

ProductCodeMenu.setText("Choose");

t2.setText("");

t3.setText("");

t4.setText("");

t5.setText("");

t1.setText("Write the Social Security Number to do an operation");

ta1.setText("Owner's name\t Social Security Number\t Plate's Information\t Price\t Condition\n");

}

if(k.equals("Update"))

{ try{

Ossupdate =Integer.parseInt(t1.getText());

Oname=t3.getText();

plate=t5.getText();

Oss=Integer.parseInt(t2.getText());

cond=ProductCodeMenu.getText();

Pprice=Double.parseDouble(t4.getText());

if((Oss<0)||(Pprice<0)||(Ossupdate<0)) throw new IOException("Error: No negative values allowed") ;

CodeMenu.setText("Update");

ta1.setText(P.updateByOss(Ossupdate,Oname,cond,plate,Oss,Pprice));}

catch (IOException f)

{

JOptionPane.showMessageDialog(null,f.getMessage(),null,JOptionPane.ERROR_MESSAGE);

}

catch(NumberFormatException g)

{JOptionPane.showMessageDialog(null,"Error: Wrong data type",null,JOptionPane.ERROR_MESSAGE); }

}

if(k.equals("Delete"))

{

try{

Ossupdate =Integer.parseInt(t1.getText());

if((Ossupdate<0)) throw new IOException("Error: No negative values allowed") ;

CodeMenu.setText("Delete");

ta1.setText(P.delete(Ossupdate));

}

catch (IOException f)

{

JOptionPane.showMessageDialog(null,f.getMessage(),null,JOptionPane.ERROR_MESSAGE);

}

catch(NumberFormatException g)

{JOptionPane.showMessageDialog(null,"Error: Wrong data type",null,JOptionPane.ERROR_MESSAGE); }

}

if(k.equals("Search"))

{try{

Ossupdate =Integer.parseInt(t1.getText());

if((Ossupdate<0)) throw new IOException("Error: No negative values allowed") ;

CodeMenu.setText("Search");

ta1.setText(P.SearchByOss(Ossupdate));}

catch (IOException f)

{

JOptionPane.showMessageDialog(null,f.getMessage(),null,JOptionPane.ERROR_MESSAGE);

}

catch(NumberFormatException g)

{JOptionPane.showMessageDialog(null,"Error: Wrong data type",null,JOptionPane.ERROR_MESSAGE); }

}

if(k.equals("Show list"))

{

ta1.append(P.printing()+ "\n");

}

}

public static void main(String []args)

{

test ob=new test();

ob.setVisible(true); }

}

Output Samples:

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References: