I tries and I have add insertlist method BUT it have some errors .. could you plz hepl my to find what are the errors ....
those are the cods after adding the method // ??
main class
PHP Code:
//-------------------------------------------------------------------------------------Backages
import java.util.*;
import java.util.Scanner;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
//--------------------------------------------------------------------------------------Class Main
public class Main extends JFrame
{
final Users theUser = new Users();
//------------------------------------------------------------------------------------1--Method main
public static void main(String[] args)
{
new Main().setVisible(true);//call method Main
}//end public static void main
//-----------------------------------------------------------------------------------2--Mathod Main
public Main()
{
theUser.Users();
//------------------
setTitle("Phone Directory");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//---------------------------------------------------------------------------Date-Photo-size-color
Date da = new Date();
Container contentPane = getContentPane();
contentPane.setLayout(new BorderLayout());
contentPane.setBackground(Color.green);
setSize(300,300);
//-------------------
JLabel time = new JLabel(" Today is : " +da);
getContentPane().add(time);
//----------------
setResizable(false);
setLocationRelativeTo(null);
String imgStr1 = "c://EQLS.png";
ImageIcon image = new ImageIcon(imgStr1);
JLabel label1 = new JLabel(" ", image, JLabel.CENTER);
getContentPane().add(label1);
validate();
setVisible(true);
//-----------------------------------------------------------------------------------------Button1
JButton button1 = new JButton("*~...~* Welcome *~...~*");
button1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e)
{
JOptionPane.showMessageDialog((Component) e.getSource(), "\n\nThe main idea behind my system is\n\n\n to make the search for teacher information easier using a computer system.\n\n");
}
});//end button1
//-----------------------------------------------------------------------------------------Button2
JButton button2 = new JButton("Main User Access: Phone Directory");
button2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e)
{
String Option1 = JOptionPane.showInputDialog(null,"Please Enter The Number of Choice !? \n1) View list ROOM\n2) SEARCH THE DATA OFTEACHER\n3) Remove DATA OF TEACHER list\n4) Delete\n5) Return\n6) Exit\n", "Phone Directory Options", JOptionPane.INFORMATION_MESSAGE);
int ConvOption1 = Integer.parseInt(Option1);
theUser.mainUser(ConvOption1,Option1);//go to main User method
}//end method public void actionListener String Option1 = JOptionPane.showInputDialog(
});//end button2
//-----------------------------------------------------------------------------------------Button3
JButton button3= new JButton("Exit");
button3.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e)
{
int result = JOptionPane.showConfirmDialog((Component) e.getSource(),"Close Phone Directory SYSTEM");
if (result == JOptionPane.YES_OPTION)
{System.exit(0);}
}
});//end button3
//------------------------------------------------------------------------------------------
// setLayout(new FlowLayout(FlowLayout.CENTER));
setLayout(new GridLayout(8,4));
getContentPane().add(button1);
getContentPane().add(button2);
getContentPane().add(button3);
}//end public method Main
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
}//end class Main
users class
PHP Code:
import javax.swing.JFrame;
import java.util.Scanner;
import javax.swing.JOptionPane;
class Users
{
linkList theList = new linkList();
Scanner input = new Scanner(System.in);
int a = 0;
int b = 0;
int key,r;
Link v,d, f;
public void Users()
{
JOptionPane.showMessageDialog (null, " *~...~* WELCOME *~...~*\n\n PHONE DIRECTORY SYSTEM\n\n For Login Please Click Ok\n\n", " {ELECTRONIC SYSTEM OF PHONE DIRECTORY]", JOptionPane.INFORMATION_MESSAGE);
JFrame frame = new JFrame();
int SENTINEL = 123; //password number
String str; //password number which the user will Enter it
int password = 0;
int counter = 5;
while (counter != 0 && password != SENTINEL)
{
str = JOptionPane.showInputDialog("Enter Password");
password = Integer.parseInt(str);
if(password == SENTINEL)
{
JOptionPane.showMessageDialog(null, "CORRECT");
System.out.println("\n\t*~...~* The Messages of PHONE DIRECTORY SYSTEM *~...~*\n\n-------------------------------------------------------------------------- \n");
}
else if(password!=SENTINEL)
{
JOptionPane.showMessageDialog(null, "Wrong try again");
}
counter = counter-1;
if (counter == 0)
{
JOptionPane.showMessageDialog(null, "Acces Denied!!! \nPlease contact Helpdesk");
System.exit(0);
}
}
String backupDir="" ;
theList.insertFirst(16, "08120014", "Ms. Fahmeeda Aziz","043258088");
theList.insertFirst(15, "08120014", "Dr. Farhana Shaheen ","043258088");
theList.insertFirst(14, "08120014", "Dr. Fatima Al-Zwaihri ", "043258088");
theList.insertFirst(13, "08120014", "Dr. Tahani Sindi ", "043258088");
theList.insertFirst(12, "08120014", "Dr. Nagla Osman ", "043935024");
theList.insertFirst(11, "08120014", "Ms. Atiya Azmi ", "043258088");
theList.insertFirst(10, "08120014", "Ms. Aisha Al-Johani ", "043258088");
theList.insertFirst(9, "08120014", "Ms. Siti Haryani Mohd ", "043935024");
theList.insertFirst(8,"08120014", "Ms.Humera Ghani ", "043258088");
theList.insertFirst(7, "08120014", "Ms. Salma Sadiqha ", "043258088");
theList.insertFirst(6, "08120014", "Ms. Azra Sultana ", "043935024");
theList.insertFirst(5, "08120014", "Ms. Ruchi Tuli ", "043258088");
theList.insertFirst(4, "08120014", "Ms. Fozia Noor ", "043258088");
theList.insertFirst(3, "08120014", "Ms. Kajal nusratullah ", "043258088");
theList.insertFirst(2, "08120014", "Ms.Anusuyah Subbarao ", "043935024");
theList.insertFirst(1, "08120014", "Ms. Aizal Yusrina ", "043258088");
}
public void mainUser(int ConvOption1,String Option1)
{
while(ConvOption1!=6)
{
switch (ConvOption1) // 5 cases
{
case 1: {
theList.displayList();
System.out.println("---------------------------------------------------------------------------\n");
}
break;
case 2: {
// Option1 = JOptionPane.showInputDialog("Enter how MANY TEACHERS U WANT TO FIND");
// a = Integer.parseInt(Option1);
System.out.println("Enter how MANY TEACHERS U WANT TO FIND");
a=input.nextInt();
//theList. display1() ;
for(int j=1;j<=a;j++)
{
// Option1 = JOptionPane.showInputDialog("\nEnter Number of Teacher Room ÏÏ "+j+" ÏÏ ");
// b = Integer.parseInt(Option1);
System.out.println("\nEnter Number of Teacher Room ÏÏ "+j+" ÏÏ ");
b=input.nextInt();
f = theList.find( b);
// find item
if( f != null)
{
System.out.println("\nTEACHER NAME IS: "+f.Teacher_Name+"\nTEACHER ID: "+f.teacher_ID+"\nPHONE NUMBER IS: "+f.Phone_number);
// JOptionPane.showMessageDialog(null,"\nTEACHER NAME IS: "+f.Items+"\nTEACHER ID: "+f.qui+"\nPHONE NUMBER IS: "+f.price);
// System.out.println("\nQuintity of "+f.Items+" Now is "+e);
}
else
{
System.out.println("we did FOUND "+f.Teacher_Name);
}
}
// System.out.println("\n ÒÒ price ="+t);
System.out.println("---------------------------------------------------------------------------\n");
}
break;
case 3: {
System.out.println("Enter THE ROOM NUMBER OF TEACHER ");
int key=input.nextInt();
Link i = theList.delete(key); // delete item
if( i != null )
{
System.out.println("Deleted NUMBER OF ROOM : "+ i.Room_Number+"\n");
System.out.println("Delet the ID : "+i.teacher_ID +"\n");
System.out.println("Delet the Name Of TEACHER : "+ i.Teacher_Name+"\n" );
System.out.println("Delet the PHONE NUMBER : "+i.Phone_number+"\n");
System.out.println("SUCCESSFUL DELET");
}
else
{
System.out.println("Can't delete ");
System.out.println("the data still in list "+i);
}
System.out.print("---------------------------------------------------------------------------\n");
}
break;
case 4: {
theList.display2();
System.out.println("Enter ROOM NUMBER:>");
key= input.nextInt();
Link i = theList.delete(key);
System.out.print("---------------------------------------------------------------------------");
System.out.println("\nlist after EDIT:>");
theList.display2();
System.out.println("---------------------------------------------------------------------------\n");
}
break;
case 5: {
theList.display2();
System.out.println("Enter New Teacher Room NUMBER:>");
key= input.nextInt();
Link i = theList.insertLast(key);
System.out.print("---------------------------------------------------------------------------");
System.out.println("\nlist after EDIT:>");
theList.display2();
System.out.println("---------------------------------------------------------------------------\n");
}
break;
}//end switch
if(ConvOption1>6)
{
JOptionPane.showMessageDialog(null, "YOUAR INPUT NUMBER NOT IN THE LIST\n PLEASE, TRY AGAIN");
}
Option1 = JOptionPane.showInputDialog("\n1-Show List of TEACHERS\n2-SEARCH \n3-Remove \n4-Borrow\n5-Return\n6-Exit");
ConvOption1 = Integer.parseInt(Option1);
}//end while
}
}//end mainUser method
Link class
PHP Code:
class Link
{
public int Room_Number;
public String teacher_ID;
public String Teacher_Name;
public String Phone_number; // data item
public Link next; // next link in list
// -------------------------------------------------------------
public Link(int a, String b, String teacher, String Phone) // constructor
{
Room_Number = a;
teacher_ID = b; // constructor
Teacher_Name = teacher;
Phone_number = Phone;
} // set to null)
// -------------------------------------------------------------
public void displayLink1()
// display ourself
{
System.out.println("\t" + Teacher_Name + "\t\t{" + Room_Number + "}");
System.out.println("");
}
public void displayLink2()
// display ourself
{
System.out.print("\t" + Room_Number);
System.out.print("\t" + teacher_ID);
System.out.print("\t" + Teacher_Name);
System.out.println("\t\t{" + Phone_number + "}");
}
}
linkList class
PHP Code:
class linkList
{
private Link first; // ref to first link on list
// -------------------------------------------------------------
public linkList() // constructor
{
first = null; // no links on list yet
}
// -------------------------------------------------------------
public boolean isEmpty() // true if list is empty
{
return (first == null);
}
// -------------------------------------------------------------
// insert at start of list
public String insertFirst(int a, String SD, String teacher, String Phone) { // make
// new
// link
Link newLink = new Link(a, SD, teacher, Phone);
newLink.next = first; // newLink --> old first
first = newLink; // first --> newLink
return first.Room_Number + " " + first.teacher_ID + " " + first.Teacher_Name + "{" + first.Phone_number + "}";
}
// -------------------------------------------------------------
public Link find(int key) // find link with given key
{ // (assumes non-empty list)
Link current = first; // start at 'first'
while (current.Room_Number != key) // while no match,
{
if (current.next == null) // if end of list,
return null; // didn't find it
else
// not end of list,
current = current.next; // go to next link
}
return current; // found it
}
// /////////////////////////////////////
public Link delete(int key) // delete link with given key
{ // (assumes non-empty list)
Link current = first; // search for link
Link previous = first;
while (current.Room_Number != key) {
if (current.next == null)
return null; // didn't find it
else {
previous = current; // go to next link
current = current.next;
}
} // found it
if (current == first) // if first link,
first = first.next; // change first
else
// otherwise,
previous.next = current.next; // bypass it
return current;
}
// -------------------------------------------------------------
public void insertLast( int key)
{
Link newLink = new Link(key); // make new link
if( isEmpty() ) // if empty list,
first = newLink; // first --> newLink
else
{
last.next = newLink; // old last --> newLink
newLink.previous = last; // old last <-- newLink
}
last = newLink; // newLink <-- last
}
// -------------------------------------------------------------
public void displayList() {
System.out.println("\t\t\n\n *~...~* Welcome *~...~*\n\n ");
System.out.print("\n\n\t\t The Menue \n\n");
System.out.println("\n\t :: NAME OF TEACHERS ::\t\t:: NUMBER OF ROOM ::");
System.out.println("");
Link current = first; // start at beginning of list
while (current != null) // until end of list,
{
current.displayLink1(); // print data
current = current.next;
// move to next link
}
System.out.println("");
}
public void display2() {
System.out.print("\t\t *~...~* The Menue *~...~* \n\n");
System.out.println("\n\tR.N. ID TEACHER NAME \t PHONE NUMBER\n ");
Link current = first; // start at beginning of list
while (current != null) // until end of list,
{
current.displayLink2(); // print data
current = current.next;
// move to next link
}
System.out.println("");
}
// -------------------------------------------------------------
} // end class LinkList
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