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It took two days to get the address book, the basic function can be realized
Now I will give you to everyone. I hope everyone can find Bug.
Screenshot below
The following is the code: please keep the author copyright, thank you
/ / =====================MessageMIDlet main class ======================== =======
Package messagemidlet;
// Main class
Import javax.microedition.midlet. *;
Import javax.microedition.lcdui. *;
Public class messagemidlet extends MIDlet {
Public Static Messagemidlet MessagemIdlet;
PRIVATE MENUMIDLET MENUMIDLET = New MenumIdlet ();
/ ** constructor * /
Public messagemidlet () {
Messagemidlet = THIS;
}
/ ** main method * /
Public void startapp () {
Display.getdisplay (this) .Setcurrent (MenumIdlet);
}
/ ** Handle Pausing The Midlet * / Public Void PauseApp () {
}
/ ** Handle Destroying the MIDlet * /
Public void destroyApp (boolean unconditional) {
}
/ ** quit the midlet * /
Public static void quitApp () {
Messagemidlet.destroyApp (TRUE);
Messagemidlet.notifyDestroyed ();
Messagemidlet = NULL;
}
}
/ / ========================= ========================= ==========
/ / ========================= setGET Operation with the attribute used to the attribute ================================================================================================================================================= ================
Package messagemidlet;
/// java Why not set the properties like a C #, so trouble, I still like C #
PUBLIC CLASS setGet {
Public static int ID = 0;
Public static int delid = 0;
Public static intormid = 0;
Public static string str = NULL;
Public static boolean isok = true;
/ ** constructor * /
Public setget () {
}
Public static void setid (int id) {
ID = ID;
}
Public static int getId () {
Return ID;
}
Public static void setDelid (int id) {
Delid = ID;
}
Public static int getDelid () {
Return Delid;
}
Public static void setmodidId (int id) {
MODID = ID;
}
Public static int getModid () {
Return Modid;
}
Public static void setstr (String Str) {
Str = STR;
}
Public static string getStr () {
Return Str;
}
Public static void setistrue (boolean istrue) {
Isok = istrue;
}
Public static boolean getistrue () {
Return Isok;
}
}
/ / ========================= ========================= ==========
/ / ========================= pubclass public class (integrated some common attributes and methods for easy call) ========= =====================================================================================================================================================
Package messagemidlet;
Import javax.microedition.lcdui. *;
Import javax.microedition.rms. *;
Import java.io. *;
Public class pubclass {
Public Static Pubclass Pubclass;
Public Display Display; // Stage object
Public command exitCommand; // Leave the button object
Public Command SelectCommand; // Select button object
Public Command MenuCommand; // Main Directory
Public Command Okcommand;
Public Command Opercommand;
Public string [] menulist = {'address book,' About the author '}; // Main menu option
Public string [] mainlist = {'browsing contacts',' find contacts', add contact ',' other '};
Public String [] OperateList = {'editing contact', 'deleting contacts', all delete'}; //
// Simply modify the PersonPro property, other automatic generation, construct
Public String [] PersonPro = {'Name', 'Mobile', 'Email', 'Address', 'Other'}; // User Attributes
Public int layth = personPro.length; // User attribute
Public String DataName = 'Messages'; // Database Name
Public Boolean EXISTINGNOT = EXITINAME
RecordStore RS = NULL;
Public textfield [] Person = New TextField [Length];
Public stringItem [] Persondetail = new stringItem [length];
/** Constructor */
Public Pubclass () {for (int i = 0; i
New TextField (PersonPro [i],
'', 256, Textfield.Any;
Persondetail [i] =
New StringItem (PersonPro [i],
');
}
}
// acquirted the main directory list
Public string get_menulist (
INT i) {
IF
this.mainList.Length <0) {
Return
'';
}
Return
this.menulist [i];
}
// obtain a list of communication records
Public string get_mainlist (
Int j) {
IF
this.mainList.Length <0) {
Return
'';
}
Return
THIS.MAINLIST [J];
}
// Get a contact list
Public string get_operatelist (
Int j) {
IF
this.operateList.Length <0) {
Return
'';
}
Return
THIS.OPERATELIST [J];
}
/ / Return about
public
Void Return_Aboutmidlet () {
AboutMIDlet aboutmidlet =
New AboutMIDlet ();
Display.getdisplay (MessageMidlet.Messagemidlet) .SetCurrent (AboutMIDlet);
}
/ / Return to the main directory
public
Void return_mainmidlet () {
Mainmidlet mainmidlet =
NEW mainmidlet ();
Display.getdisplay (MessageMidlet.Messagemidlet) .SetCurrent (MainmIdlet);
}
/ / Return to the address list
public
Void Return_MenumIdlet () {
MenumIdlet menumidlet =
New menumidlet ();
Display.getdisplay (MessageMidlet.Messagemidlet) .SetCurrent (MenumIdlet);
}
// Return to the contact list
public
Void Return_PersonListMIDlet () {
PersonListMidlet PersonListMIdlet =
New personListMidlet ();
Display.getdisplay (MessageMidlet.Messagemidlet) .SetCurrent (PersonListMIDlet);
}
// Back to find contact
public
Void return_searchpersonmidlet () {
}
// Back to add a contact
public
Void Return_AddPersonmIdlet () {
AddPersonMidlet AddPersonMidlet =
New addpersonmidlet ();
Display.getdisplay (Messagemidlet.Messagemidlet) .SetCurrent (AddPersonMidlet);
}
// Return to operation
public
void return_operate device () {
OperateMIDlet OperateMIDlet =
New OperatemIdlet ();
Display.getdisplay (MessageMidlet.Messagemidlet) .SetCurrent (OperateMIDlet);
}
// Back to find
public
void return_searchmidlet () {
SearchMidlet searrchmidlet =
New searchmidlet ();
Display.getdisplay (MessageMidlet.Messagemidlet) .SetCurrent (Searrchmidlet);
}
/ / Back to find results
public
void return_searchoutmidlet () {
SearchOutmidlet searrchoutmidlet =
New searchOutmidlet ();
Display.getdisplay (MessageMidlet.Messagemidlet) .SetCurrent (SearrchoutMidlet);
}
// Return to edit
public
Void Return_ModifyPersonmidlet () {
ModifyPersonMidlet ModiftPersonMidlet =
New modifyPersonMidlet ();
Display.getdisplay (MessageMidlet.Messagemidlet) .SetCurrent (ModiftPersonmidlet);
}
/ / Return to the contact details and pass it into the corresponding ID value modify
public
Void return_persondetailmidlet () {
Persondetailmidlet PersondetAilmidlet =
New personDetailmidlet ();
Display.getdisplay (Messagemidlet.Messagemidlet) .SetCurrent (PERSONDETAILMIDLET);
}
// Warning window
public
Void Alert (String alertstring) {
Alert alert =
New alert
'Tips', Alertstring, CreateImage
'/images/1.png') ,alerttype.error);
Alert.SetTimeout (2000);
Display.getdisplay (MessageMidlet.Messagemidlet) .SetCurrent (Alert);
}
// Warning window, return to MainmIdlet after prompt
public
Void Alert (String alertstring, mainmidlet mainmidlet) {
Alert alert =
New alert
'Tips', Alertstring, CreateImage
'/images/1.png') ,alerttype.error);
Alert.SetTimeout (2000);
Display.getdisplay (Messagemidlet.Messagemidlet) .Setcurrent (Alert, MainmIdlet);
}
// Warning window, return to PersonListMIDlet after prompt
public
Void Alert (string alertstring, personlistmidlet personListmidlet) {
Alert alert =
New alert
'Tips', Alertstring, CreateImage
'/images/1.png') ,alerttype.error);
Alert.SetTimeout (2000);
Display.getdisplay (Messagemidlet.Messagemidlet) .SetCurrent (Alert, PersonListMIDlet);
}
// Create an image
public
Static Image CreateImage (String Name) {Image AIMAGE =
NULL;
Try {
AIMAGE = image.createImage (name);
}
Catch (IOException E) {
}
Return AIMAGE;
}
/ / Determine if the database exists, open, willbe the RecordStore object
Public RecordStore open () {
Boolean EXISTINOT =
False;
Boolean ok =
True;
EXInshipornot =
this.existing (dataname);
IF (existingornot) {
Try {
RS = RecordStore.OpenRecordStore (Dataname,
FALSE);
}
Catch (Exception E) {
OK =
False;
}
}
Else {
Try {
RS = RecordStore.OpenRecordStore (Dataname,
True);
OK =
True;
}
Catch (Exception E) {
OK =
False;
}
}
Return RS;
}
// Judgment character size
Public Boolean EXISTING (String RecordStoreString) {
Boolean EXISTINOT =
False;
RecordStore RS =
NULL;
IF (RecordStoreString.Length ()> 32)
Return
False;
Try {
RS = RecordStore.OpenRecordStore (RecordStoreString,
FALSE);
}
Catch (RecordStorenotFoundException E) {
EXInshipornot =
False;
}
Catch (Exception E) {
}
Finally {
Try {
Rs.closecordstore ();
}
Catch (Exception E) {
}
}
Return EXISTINGNOT;
}
}
/ / ========================= ========================= ==========
/ / ========================= Personclass user attribute class =================== =============
Package messagemidlet;
// Contact property class
Import java.io. *;
Import javax.microedition.rms. *; public
Class Personclass {
Private
Static Personclass Personclass;
// Construct a public class instance
Private Pubclass Pubclass =
New Pubclass ();
public
Static
INT ID = -1;
/ / Set the static ID, do not need to be rebound after assignment without call
/ / Contact properties, arrays
Public String [] PersonPro =
NEW STRING [Pubclass.Length];
public
Void Write (String [] PersonPro) {
FOR
INT i = 0; I
This.PersonPro [i] = personpro [i];
}
}
// Set the ID, modify, delete, display
public
Void setRecordid (
INT ID) {
THIS.ID = ID;
}
// get the ID
public
Static
INT getRecordId () {
Return ID;
}
// Convert to byte
public
Byte [] changetobytearay () {
Byte [] DATA =
NULL;
Try {
ByteArrayoutputStream baos =
New byteArrayoutputStream ();
DataOutputStream DOS =
New DataOutputStream (baos);
FOR
INT J = 0; J <
THIS.PERSONPRO.LENGTH; J ) {
Dos.writeutf
THIS.PERSONPRO [J]);
}
Data = baos.tobytearray ();
Baos.close ();
dos.close ();
}
Catch (Exception E) {
Return
NULL;
}
Return Data;
}
public
Void ChangeFrombyteArray (
BYTE [] data) {
Try {
ByteArrayinputStream Bais =
New ByteArrayInputStream (data);
DataInputStream DIS =
New DataInputStream (bais);
FOR
INT K = 0; K
THIS.PERSONPRO [K] = dishdutf ();
}
Bais.Close ();
Dis.close ();
}
Catch (Exception E) {
}
}
Public String getPerson
INT m) {
Return
this.PersonPro [M];
}
Public String getListName
INT recordid) {
Return
This.PersonPro [0];
}
}
/ / ========================= ========================= ==========
/ / =============================================================================================================================================== ================ Package Messagemidlet;
Import javax.microedition.lcdui. *;
Import java.io. *;
public
Class MenumIdlet Extends List Implements CommandListener {
// Construct a public class instance
Private Pubclass Pubclass =
New Pubclass ();
/ ** constructor * /
Public meNumIdlet () {
Super
'Address Book', List.Implicit;
FOR
INT i = 0; I
THIS.APpend (Pubclass.Get_Menulist (i), Pubclass.createImage
'/images/tel.png');
}
// Constructor button
Pubclass.selectCommand =
New Command
'Select', Command.Screen, 2);
Pubclass.exitCommand =
New Command
'Leave', Command.exit, 1);
// Add listener
This.Addcommand (Pubclass.exitCommand);
This.Addcommand (Pubclass.selectCommand);
this.setcommandlistener
THIS);
}
public
Void CommandAction (Command C, Displayable D) {
IF (c == pubclass.selectcommand) {
INT SelectItem =
THIS.GetSelectedIndex ();
// Try not to use Switch, use IF to increase speed, although it is trouble, experience income
IF (selectItem == 0) {
Pubclass.Return_mainmidlet ();
}
IF (selectItem == 1) {
Pubclass.Return_Aboutmidlet ();
}
}
//drop out
IF (c == pubclass.exitcommand) {
Messagemidlet.quitApp ();
}
}
}
/ / ========================= ========================= ==========
// ============================================================================================================================================================================================================================= =========================Pickage Messagemidlet;
Import javax.microedition.midlet. *;
Import javax.microedition.lcdui. *;
Import javax.microedition.lcdui.command;
Import javax.microedition.lcdui.displayable;
public
Class Aboutmidlet Extends Form IMPLEments COMMANDLISTENER {
// Construct a public class instance
Private Pubclass Pubclass =
New Pubclass ();
/ ** constructor * /
Public Aboutmidlet () {
Super
');
THIS.SETTILE (
'About the author');
StringItem StringItem =
NEW STRINGITEM
'about the author',
'01 Netcom (2) No. 02. Name: Sukey. Copyright: SuKey. ');
THIS.APpend (StringItem);
// Constructor button
Pubclass.MenuCommand =
New Command
'Home Catalog', Command.screen, 1);
Pubclass.exitCommand =
New Command
'Leave', Command.back, 1);
// Add listener
This.Addcommand (Pubclass.MenuCommand);
This.Addcommand (Pubclass.exitCommand);
this.setcommandlistener
THIS);
}
public
Void CommandAction (Command C, Displayable D) {
IF (c == pubclass.menucommand) {
Pubclass.Return_MenumIdlet ();
}
IF (c == pubclass.exitcommand) {
Messagemidlet.quitApp ();
}
}
}
/ / ========================= ========================= ==========
/ / ================================================================================================================================================================================= ================ Package Messagemidlet;
//
Import javax.microedition.lcdui. *;
public
Class mainmidlet extends list imports commandListener {
// Construct a public class instance
Private Pubclass Pubclass =
New Pubclass ();
/ ** constructor * /
Public mainmidlet () {
Super
'Address Book', List.Implicit;
// Display list
FOR
INT i = 0; I
THIS.APpend (Pubclass.Get_mainlist (i), Pubclass.createImage
'/images/tel.png');
}
// Constructor button
Pubclass.selectCommand =
New Command
'Select', Command.ok, 1);
Pubclass.MenuCommand =
New Command
'Home Catalog', Command.exit, 2);
// Add listener
This.Addcommand (Pubclass.selectCommand);
This.Addcommand (Pubclass.MenuCommand);
this.setcommandlistener
THIS);
}
public
Void CommandAction (Command C, Displayable D) {
IF (c == pubclass.selectcommand) {
INT SelectItem =
THIS.GetSelectedIndex ();
// Try not to use Switch, use IF to increase speed, although it is trouble, experience income
IF (selectItem == 0) {
Pubclass.Return_PersonListMIDlet ();
}
IF (selectItem == 1) {
Pubclass.Return_Searchmidlet ();
}
IF (selectItem == 2) {
Pubclass.Return_AddPersonMidlet ();
}
IF (selectItem == 3) {
}
}
IF (c == pubclass.menucommand) {
Pubclass.Return_MenumIdlet ();
}
}
}
/ / ========================= ========================= ========== / / ================================================================================== =====================================================================================================================================================
Package messagemidlet;
Import javax.microedition.lcdui. *;
Import javax.microedition.rms. *;
public
Class addpersonmidlet extends form imports commandlistener {
// Construct a public class instance
Private Pubclass Pubclass =
New Pubclass ();
/ ** constructor * /
Public AddPersonMidlet () {
Super
');
THIS.SETTILE (
'add contact');
FOR
INT i = 0; I
THIS.APpend (Pubclass.Person [I]);
// Constructor Pubclass.exitCommand =
New Command
'Return', Command.ok, 1); Pubclass.okcommand =
New Command
'Save', Command.back, 2);
// Add listener
This.Addcommand (Pubclass.exitCommand);
This.Addcommand (Pubclass.okCommand);
this.setcommandlistener
THIS);
// Add record
Private
Void AddRecord () {RecordStore RS =
NULL; RS = Pubclass.Open ();
Try {
// Get the textfield each straight, save String in an array [] getString =
NEW STRING [Pubclass.Length];
FOR
INT i = 0; I
// Construct the Personclass instance personclass personclass =
NEW PERSONCLASS (); personclass.write (getString);
Byte [] data = personclass.changetobyteaRray ();
INT recordid = personclass.getRecordId ();
IF (RecordID! = -1) {RS.SetRecord (RecordID, Data, 0, Data.Length);}
Else {
// Add Record Recordid = rs.addRecord (Data, 0, Data.Length);} setget.setdelid (0); mainmidlet mainmidlet =
New mainmidlet (); pubclass.alert
'Added successfully! Return ....... ', mainmidlet;}
Catch (Exception E) {pubclass.alert
'Add contact failed');}}
public
Void CommandAction (Command C, Displayable D) {
IF (c == pubclass.okcommand) {
// Judgment at least to fill in the name
IF (Pubclass.Person [0] .getstring () ==
Null || Pubclass.Person [0] .getstring () ==
'') {pubclass.alert
'At least to fill in the name');
Else {
// Add record addRecord ();}}
IF (c == pubclass.exitcommand) {pubclass.return_mainmidlet ();}}}
/ / ========================= ========================= ==========
/ / ========================= ========================================================================================================================================================== ==============================================================================00;
public
Class PersonListMidlet Extends List ImmandListener {
// Construct a public class instance
Private Pubclass Pubclass =
New Pubclass ();
Private personclass personclass =
New persons ();
public
Int [] RecordIDS;
/ ** constructor * /
Public personListMidlet () {super
'Contact List', list.implicit; personList ();
// Constructor button Pubclass.selectCommand =
New Command
'View', Command.Screen, 2); Pubclass.exitCommand = New Command
'Edit', Command.exit, 1);
// Add listener
This.Addcommand (Pubclass.exitCommand);
This.Addcommand (Pubclass.selectCommand);
this.setcommandlistener
THIS);
//user list
public
Void personList () {recordstore =
NULL; RS = Pubclass.Open ();
Try {
Byte [] DATA;
// Establish an enumeration, take the record replaromeration re = rs.enumerateRecords
NULL,
NULL,
FALSE);
// Judgment whether it is recorded
IF (re.hasnextelement ()) {
INT Records = Re.numRecords ();
// Number of records replandis =
New
Int [Records];
// RecordID record array
FOR
INT i = 0; I
/ / Save ID Data = rs.getRecord (RecordIDS [I]); Personclass.changefrombyTearray (DATA);
THIS.APPEND (
'' Personclass.getPerson (0)
'', Pubclass.createImage
'/Images/per.png'))));
// Insert this RECORD name} setget.setistrue
True);
Else {
THIS.APPEND (
'Haven't added contact?',
NULL); setget.setistrue
False);}}
Catch (Exception E) {}}
// Global Variable ID
Private
Void setgetId () {
INT ITEMID =
THIS.GetSelectedIndex (); setget.setid (RecordIDS [itemID]);
// Global variable Delid
Private
Void setgetdelid () {
INT ITEMID =
this.getSelectedIndex (); setget.setdelid (RecordIDS [itemid]);
Private
void setgetmodid () {
INT ITEMID =
THIS.GetSelectedIndex (); setget.setmodid (RecordIDS [itemid]);
/ / Tip information and return
public
void alernone () {mainmidlet mainmidlet =
New mainmidlet (); pubclass.alert
'Uncomfortable', mainmidlets;
public
Void CommandAction (Command C, Displayable D) {
IF (c == pubclass.exitcommand) {
IF (setget.getistrue ()) {
this.setgetdelid ();
THIS.SETGETMODID (); pubclass.return_operateemIdlet ();
Else {alernone ();}}
IF (c == pubclass.selectcommand) {
IF (setget.getistrue ()) {
This.SetGetId (); pubclass.return_Persondetailmidlet ();} else {confernone ();}}}}
/ / ========================= ========================= ==========
// ========================= Searchmidlet lookup class ===================== ============ package messagemidlet; import javax.microedition.midlet *;. import javax.microedition.lcdui *;. import javax.microedition.lcdui.Command; import javax.microedition.lcdui.Displayable ;
public
Class searchMidlet Extends textbox imports commandlistener {
// Construct a public class instance
Private Pubclass Pubclass =
New Pubclass ();
/ ** constructor * /
Public searchMidlet () {super
'Find contacts',
'', 256, 0);
// Constructor button Pubclass.MenuCommand =
New Command
'Find', Command.Screen, 1); Pubclass.okCommand =
New Command
'Home Catalog', Command.back, 1);
// Add listener
This.Addcommand (Pubclass.MenuCommand);
This.Addcommand (Pubclass.okCommand);
this.setcommandlistener
THIS);
public
Void CommandAction (Command C, Displayable D) {
IF (c == pubclass.okcommand) {pubclass.return_MenumIdlet ();
IF (c == pubclass.menucommand) {
// Set the global variable setget.setstr
THIS.GETSTRING ()); Pubclass.Return_SearchOutmidlet ();}}}
/ / ========================= ========================= ========== / / ========================================================================== ====================================================================================================================== ;
public
Class searchMidlet extends list imports commandListener {
// Construct a public class instance
Private Pubclass Pubclass =
New Pubclass ();
Private personclass personclass =
New persons ();
public
Int [] RecordIDS;
/ ** constructor * /
Public searchoutmidlet () {super
'Find Result', list.implicit; personList ();
// Constructor button Pubclass.selectCommand =
New Command
'View', Command.Screen, 2); Pubclass.ExitCommand =
New Command
'Edit', Command.exit, 1);
// Add listener
This.Addcommand (Pubclass.exitCommand);
This.Addcommand (Pubclass.selectCommand);
this.setcommandlistener
THIS);
//user list
public
Void personList () {recordstore =
NULL; RS = Pubclass.Open ();
Try {
Byte [] DATA;
// Match Recordfilter RF =
NEW namefilter ();
// Establish an enumeration, take the record replaromeration re = rs.enumerateRecords (RF,
NULL,
FALSE);
// Judgment whether it is recorded
IF (re.hasnextelement ()) {
INT Records = Re.numRecords ();
// Number of records replandis =
New
Int [Records];
// RecordID record array
FOR
INT i = 0; I
/ / Save ID Data = rs.getRecord (RecordIDS [i]); Personclass.changefrombyteArray (DATA); this.Append
'' Personclass.getPerson (0)
'', Pubclass.createImage
'/Images/per.png'))));
// Insert this RECORD name} setget.setistrue
True);
Else {
THIS.APPEND (
'Sorry, I didn't find',
NULL); setget.setistrue
False);}}
Catch (Exception E) {}}
// Global Variable ID
Private
Void setgetId () {
INT ITEMID =
THIS.GetSelectedIndex (); setget.setid (RecordIDS [itemID]);
// Global variable MODID
Private
void setgetmodid () {
INT ITEMID =
THIS.GetSelectedIndex (); setget.setmodid (RecordIDS [itemid]);
// Global variable Delid
Private
Void setgetdelid () {
INT ITEMID =
this.getSelectedIndex (); setget.setdelid (RecordIDS [itemid]);
/ / Tip information and return
public
void alernone () {mainmidlet mainmidlet =
New mainmidlet (); pubclass.alert
'Uncomfortable', mainmidlets;
public
Void CommandAction (Command C, Displayable D) {
IF (c == pubclass.exitcommand) {
IF (setget.getistrue ()) {
THIS.SETGETMODID ();
THIS.SETGETDELID (); Pubclass.Return_operateMIDlet ();
Else {alernone ();}}
IF (c == pubclass.selectcommand) {
IF (setget.getistrue ()) {
THIS.SETGETID (); Pubclass.Return_Persondetailmidlet ();
Else {alernone ();}}}}
Class Namefilter Implements Recordfilter {
Public Boolean Matches
Byte [] Candidate) {DataInputStream Person =
New DataInputStream
New ByteArrayInputStream (Candidate)); String PersoncName =
'';
Try {personcname = person.Readutf ();}
Catch (Exception E) {} personclass personclass =
New persons ();
IF (PersoncName.equals (setget.getstr ())))
Return
True;
Else
Return
False;}}
/ / ========================= ========================= ========== / / ============================================================================================================================================================================================= ===========================================================================================================================================================001
public
Class Persondetailmidlet Extends Form IMPLEments CommandListener {
// Construct a public class instance
Private Pubclass Pubclass =
New Pubclass ();
/ ** constructor * /
Public persdetailmidlet () {super
');
THIS.CONSTRUCTORLIST ();
// Constructor button Pubclass.selectCommand =
New Command
'Back', Command.Screen, 2); Pubclass.ExitCommand =
New Command
'Main Catalog', Command.exit, 1);
// Add listener
This.Addcommand (Pubclass.exitCommand);
This.Addcommand (Pubclass.selectCommand);
this.setcommandlistener
THIS);
/ / Conformal List, display details
Private
Void constructorlist () {
Try {
THIS.GETPERSONDETAIL ();
Catch (RecordStoreException EX) {}}
/ / Bind the corresponding ID data and display
Private
Void getPersondetail () throws recordormoreException {recordstore =
NULL;
// Open the database RS = pubclass.open ();
// Establish an enumeration and obtain the details of the corresponding ID
Try {
Byte [] data; recording re = rs.enumerateRecords
NULL,
NULL,
False); DATA = rs.getRecord (setget.getid ());
// Reconfigure and convert Byte into string type Personclass Personclass =
New personclass (); personclass.changefrombytearray (data); // Reset User ID
INT RecordId = rs.getnexTrecordId ();
/ / Assign a value for the corresponding attribute
FOR
INT i = 0; i THIS.APpend (Pubclass.Persondetail [i]); Pubclass.Persondetail [i] .Settext (Personclass.getPerson (i));} / / Set the title as the username This.SetTitle (Personclass.GetPerson (0)); Catch (RecordStorenotopenexception EX) {}} public Void CommandAction (Command C, Displayable D) { IF (c == pubclass.selectcommand) {pubclass.return_PersonListMIDlet (); IF (c == pubclass.exitCommand) {pubclass.return_menumidlet ();}}}}} / / ========================= ========================= ========== / / ========================= OperateMIDlet operation contact person (only delete function) ============= =================== Package messagemidlet; import javax.microedition.midlet. *; import javax.microedition.lcdui. *; import javax.microedition.rms. *; public Class OperateMidlet Extends List Implements CommandListener { // Construct a public class instance Private Pubclass Pubclass = New Pubclass (); / ** constructor * / Public OperateMidlet () {super 'Contact', list.implicit; FOR INT i = 0; i THIS.Append (Pubclass.get_operateList (i), Pubclass.createImage '/images/edit.png')); // Constructor Pubclass. gamCommand = New Command 'Select', Command.Screen, 2); Pubclass.MenuCommand = New Command 'Main Catalog', Command.exit, 1); // Add listener This.Addcommand (Pubclass.MenuCommand); This.Addcommand (Pubclass. gazkerCommand); this.setcommandlistener THIS); / / Delete the specified record public Void Del INT Delid) {personclass personclass = New persons (); RecordStore RS = NULL; RS = Pubclass.Open (); Try { // Judgment whether it is recorded IF (rs.getnumRecords () <1) {pubclass.alert 'Not added yet! Return ....... '); Else { // bug rs.deleteRecord (Delid); AlertInfo 'successfully deleted! Return ....... ');}} Catch (Exception E) {alertinfo 'failed to delete! Return ....... ');}} / / All delete records public Void deLall () {personclass personclass = New persons (); RecordStore RS = NULL; RS = Pubclass.Open (); // Judgment whether it is recorded Try { IF (rs.getnumRecords () <1) {pubclass.alert 'Not added yet! Return ....... '); Else { // Conquer the Recordenumeration instance, remove the record replaromeration re = rs.enumerateRecords NULL, NULL, FALSE); / / According to ID, loop deletion While (Re.hasNexTelement ()) { INT RecoidId = Re.nexTrecordId (); rs.deleteRecord (RecoidId);} alertinfo 'successfully deleted! Return ....... ');}} Catch (Exception E) {alertinfo 'failed to delete! Return ....... ');}} public Void Alertinfo (String Info) {personListMidlet personListMIDlet = New personlistmidlet (); Pubclass.alert (in, fo, personlistmidlet); public Void CommandAction (Command C, Displayable D) { IF (c == pubclass.menucommand) {pubclass.return_menumIdlet (); IF (c == pubclass. gazkercommand) { INT SelectItem = THIS.GetSelectedIndex (); // Try not to use Switch, use IF to increase speed, although it is trouble, experience income IF (selectitem == 0) {pubclass.return_modifyPERSONMIDLET ();} if (selecttem == 1) {DEL (setget.getdelid ()); setget.setdelid (0);} IF (selecttem == 2) {deLall (); setget.SetDelid (0);}}}} / / ========================= ========================= ========== / / ==================================================================================================================================== ================= Package Messagemidlet; import javax.microedition.lcdui. *; import javax.microedition.rms. *; public Class ModifyPersonmidlet Extends form imports commandlistener { // Construct a public class instance Private Pubclass Pubclass = New Pubclass (); / ** constructor * / Public ModifyPersonmidlet () {Super '); Try { THIS.GETPERSONDETAIL (); Catch (RecordStoreException EX) {} // Constructor Pubclass.exitCommand = New Command 'Home Catalog', Command.ok, 1); Pubclass.OkCommand = New Command 'Modify', Command.Back, 2); // Add listener This.Addcommand (Pubclass.exitCommand); This.Addcommand (Pubclass.okCommand); this.setcommandlistener THIS); / / Bind the corresponding ID data and display Private Void getPersondetail () throws recordormoreException {recordstore = NULL; // Open the database RS = pubclass.open (); // Establish an enumeration and obtain the details of the corresponding ID Try { Byte [] data; recording re = rs.enumerateRecords NULL, NULL, False); DATA = rs.getRecord (setget.getmodid ()); // Reconfiguration, and convert Byte to string type Personclass Personclass = NEW PERSONCLASS (); Personclass.changefrombyteaRray (data); // Reset the user ID INT RecordId = rs.getnexTrecordId (); / / Assign a value for the corresponding attribute FOR INT i = 0; I THIS.APpend (Pubclass.Person [i]); Pubclass.Person [i] .setstring (Personclass.getPerson (i));} / / Set the title as the username THIS.SETTILE ( 'Modify' Personclass.getPerson (0)); Catch (RecordStorenotopenexception EX) {} rs.closecordstore ();} // Modify the contact public Void updataperson () {recordstore = NULL; RS = Pubclass.Open (); Try { // Get the textfield each straight, save String in an array [] getString = NEW STRING [Pubclass.Length]; FOR INT i = 0; i // Construct the Personclass instance personclass personclass = NEW PERSONCLASS (); personclass.write (getString); Byte [] data = personclass.changetobyteaRray (); INT recordid = personclass.getRecordId (); IF (RecordID! = -1) {RS.SetRecord (RecordID, Data, 0, Data.Length);} Else { // Modify the record RS.SetRecord (setget.getmodid (), DATA, 0, DATA.LENGTH); //rs.seTrecord (setget.getmodid (), DATA, 0, DATA.LENGTH; Personclass.SetRecordId (RecordId);} setget.setmodid (0); personlistmidlet personListMIDlet = New personlistmidlet (); pubclass.alert 'Successfully modified! Return ....... ', PersonListMidlet; Catch (Exception E) {personListMidlet PersonListMIDlet = New personlistmidlet (); pubclass.alert 'Modify Fail', PersonListMidlet;}} public Void CommandAction (Command C, Displayable D) { IF (c == pubclass.exitcommand) {pubclass.return_menumIdlet (); IF (c == pubclass.okcommand) { // Judgment at least to fill in the name IF (Pubclass.Person [0] .getstring () == Null || Pubclass.Person [0] .getstring () == '') {pubclass.alert 'At least to fill in the name'); Else { THIS.UPDataPerson ();}}}} / / ========================= ========================= ==========
