helpful

In social psychology, the everyday concept of helpfulness is the property of providing useful assistance; or friendliness evidenced by a kindly and helpful disposition. read more at WikiPedia

  • TimeZone represents a time zone offset, and also figures out daylight savings. Typically, you get a TimeZone using getDefault which creates a TimeZone based on the time zone where the program is running. For example, for a program running in Japan, getDefault creates a TimeZone object based on Japanese Standard Time.

    You can also get a TimeZone using getTimeZone along with a time zone ID. For instance, the time zone ID for the U.S. Pacific Time zone is "America/Los_Angeles". So, you can get a U.S. Pacific Time TimeZone object with

    TimeZone tz = TimeZone.getTimeZone("America/Los_Angeles");

    You can force the Java Virtual Machine to use a specific TimeZone by adding a –D to its start parameter

    -Duser.timezone="America/Los_Angeles"

    In this example any server located outside the U.S. Pacific Time zone can still create timestamp like it would be in the U.S. Pacific Time zone.

    All the available TimeZone from java.util.TimeZone  are listed below for your convenience:

    ACT
    AET
    Africa/Abidjan
    Africa/Accra
    Africa/Addis_Ababa
    Africa/Algiers
    Africa/Asmera
    Africa/Bamako
    Africa/Bangui
    Africa/Banjul
    Africa/Bissau
    Africa/Blantyre
    Africa/Brazzaville
    Africa/Bujumbura
    Africa/Cairo
    Africa/Casablanca
    Africa/Ceuta
    Africa/Conakry
    Africa/Dakar
    Africa/Dar_es_Salaam
    Africa/Djibouti
    Africa/Douala
    Africa/El_Aaiun
    Africa/Freetown
    Africa/Gaborone
    Africa/Harare
    Africa/Johannesburg
    Africa/Kampala
    Africa/Khartoum
    Africa/Kigali
    Africa/Kinshasa
    Africa/Lagos
    Africa/Libreville
    Africa/Lome
    Africa/Luanda
    Africa/Lubumbashi
    Africa/Lusaka
    Africa/Malabo
    Africa/Maputo
    Africa/Maseru
    Africa/Mbabane
    Africa/Mogadishu
    Africa/Monrovia
    Africa/Nairobi
    Africa/Ndjamena
    Africa/Niamey
    Africa/Nouakchott
    Africa/Ouagadougou
    Africa/Porto-Novo
    Africa/Sao_Tome
    Africa/Timbuktu
    Africa/Tripoli
    Africa/Tunis
    Africa/Windhoek
    AGT
    America/Adak
    America/Anchorage
    America/Anguilla
    America/Antigua
    America/Araguaina
    America/Aruba
    America/Asuncion
    America/Atka
    America/Barbados
    America/Belem
    America/Belize
    America/Boa_Vista
    America/Bogota
    America/Boise
    America/Buenos_Aires
    America/Cambridge_Bay
    America/Cancun
    America/Caracas
    America/Catamarca
    America/Cayenne
    America/Cayman
    America/Chicago
    America/Chihuahua
    America/Cordoba
    America/Costa_Rica
    America/Cuiaba
    America/Curacao
    America/Danmarkshavn
    America/Dawson
    America/Dawson_Creek
    America/Denver
    America/Detroit
    America/Dominica
    America/Edmonton
    America/Eirunepe
    America/El_Salvador
    America/Ensenada
    America/Fort_Wayne
    America/Fortaleza
    America/Glace_Bay
    America/Godthab
    America/Goose_Bay
    America/Grand_Turk
    America/Grenada
    America/Guadeloupe

    America/Guatemala
    America/Guayaquil
    America/Guyana
    America/Halifax
    America/Havana
    America/Hermosillo
    America/Indiana/Indianapolis
    America/Indiana/Knox
    America/Indiana/Marengo
    America/Indiana/Vevay
    America/Indianapolis
    America/Inuvik
    America/Iqaluit
    America/Jamaica
    America/Jujuy
    America/Juneau
    America/Kentucky/Louisville
    America/Kentucky/Monticello
    America/Knox_IN
    America/La_Paz
    America/Lima
    America/Los_Angeles
    America/Louisville
    America/Maceio
    America/Managua
    America/Manaus
    America/Martinique
    America/Mazatlan
    America/Mendoza
    America/Menominee
    America/Merida
    America/Mexico_City
    America/Miquelon
    America/Monterrey
    America/Montevideo
    America/Montreal
    America/Montserrat
    America/Nassau
    America/New_York
    America/Nipigon
    America/Nome
    America/Noronha
    America/North_Dakota/Center
    America/Panama
    America/Pangnirtung
    America/Paramaribo
    America/Phoenix
    America/Port-au-Prince
    America/Port_of_Spain
    America/Porto_Acre
    America/Porto_Velho
    America/Puerto_Rico
    America/Rainy_River
    America/Rankin_Inlet
    America/Recife
    America/Regina
    America/Rio_Branco
    America/Rosario
    America/Santiago
    America/Santo_Domingo
    America/Sao_Paulo
    America/Scoresbysund
    America/Shiprock
    America/St_Johns
    America/St_Kitts
    America/St_Lucia
    America/St_Thomas
    America/St_Vincent
    America/Swift_Current
    America/Tegucigalpa
    America/Thule
    America/Thunder_Bay
    America/Tijuana
    America/Tortola
    America/Vancouver
    America/Virgin
    America/Whitehorse
    America/Winnipeg
    America/Yakutat
    America/Yellowknife
    Antarctica/Casey
    Antarctica/Davis
    Antarctica/DumontDUrville
    Antarctica/Mawson
    Antarctica/McMurdo
    Antarctica/Palmer
    Antarctica/Rothera
    Antarctica/South_Pole
    Antarctica/Syowa
    Antarctica/Vostok
    Arctic/Longyearbyen
    ART
    Asia/Aden
    Asia/Almaty
    Asia/Amman
    Asia/Anadyr
    Asia/Aqtau
    Asia/Aqtobe
    Asia/Ashgabat

    Asia/Ashkhabad
    Asia/Baghdad
    Asia/Bahrain
    Asia/Baku
    Asia/Bangkok
    Asia/Beirut
    Asia/Bishkek
    Asia/Brunei
    Asia/Calcutta
    Asia/Choibalsan
    Asia/Chongqing
    Asia/Chungking
    Asia/Colombo
    Asia/Dacca
    Asia/Damascus
    Asia/Dhaka
    Asia/Dili
    Asia/Dubai
    Asia/Dushanbe
    Asia/Gaza
    Asia/Harbin
    Asia/Hong_Kong
    Asia/Hovd
    Asia/Irkutsk
    Asia/Istanbul
    Asia/Jakarta
    Asia/Jayapura
    Asia/Jerusalem
    Asia/Kabul
    Asia/Kamchatka
    Asia/Karachi
    Asia/Kashgar
    Asia/Katmandu
    Asia/Krasnoyarsk
    Asia/Kuala_Lumpur
    Asia/Kuching
    Asia/Kuwait
    Asia/Macao
    Asia/Macau
    Asia/Magadan
    Asia/Makassar
    Asia/Manila
    Asia/Muscat
    Asia/Nicosia
    Asia/Novosibirsk
    Asia/Omsk
    Asia/Oral
    Asia/Phnom_Penh
    Asia/Pontianak
    Asia/Pyongyang
    Asia/Qatar
    Asia/Qyzylorda
    Asia/Rangoon
    Asia/Riyadh
    Asia/Riyadh87
    Asia/Riyadh88
    Asia/Riyadh89
    Asia/Saigon
    Asia/Sakhalin
    Asia/Samarkand
    Asia/Seoul
    Asia/Shanghai
    Asia/Singapore
    Asia/Taipei
    Asia/Tashkent
    Asia/Tbilisi
    Asia/Tehran
    Asia/Tel_Aviv
    Asia/Thimbu
    Asia/Thimphu
    Asia/Tokyo
    Asia/Ujung_Pandang
    Asia/Ulaanbaatar
    Asia/Ulan_Bator
    Asia/Urumqi
    Asia/Vientiane
    Asia/Vladivostok
    Asia/Yakutsk
    Asia/Yekaterinburg
    Asia/Yerevan
    AST
    Atlantic/Azores
    Atlantic/Bermuda
    Atlantic/Canary
    Atlantic/Cape_Verde
    Atlantic/Faeroe
    Atlantic/Jan_Mayen
    Atlantic/Madeira
    Atlantic/Reykjavik
    Atlantic/South_Georgia
    Atlantic/St_Helena
    Atlantic/Stanley
    Australia/ACT
    Australia/Adelaide
    Australia/Brisbane
    Australia/Broken_Hill
    Australia/Canberra
    Australia/Darwin
    Australia/Hobart
    Australia/LHI

    Australia/Lindeman
    Australia/Lord_Howe
    Australia/Melbourne
    Australia/North
    Australia/NSW
    Australia/Perth
    Australia/Queensland
    Australia/South
    Australia/Sydney
    Australia/Tasmania
    Australia/Victoria
    Australia/West
    Australia/Yancowinna
    BET
    Brazil/Acre
    Brazil/DeNoronha
    Brazil/East
    Brazil/West
    BST
    Canada/Atlantic
    Canada/Central
    Canada/East-Saskatchewan
    Canada/Eastern
    Canada/Mountain
    Canada/Newfoundland
    Canada/Pacific
    Canada/Saskatchewan
    Canada/Yukon
    CAT
    CET
    Chile/Continental
    Chile/EasterIsland
    CNT
    CST
    CST6CDT
    CTT
    Cuba
    EAT
    ECT
    EET
    Egypt
    Eire
    EST
    EST5EDT
    Etc/GMT
    Etc/GMT+0
    Etc/GMT+1
    Etc/GMT+10
    Etc/GMT+11
    Etc/GMT+12
    Etc/GMT+2
    Etc/GMT+3
    Etc/GMT+4
    Etc/GMT+5
    Etc/GMT+6
    Etc/GMT+7
    Etc/GMT+8
    Etc/GMT+9
    Etc/GMT-0
    Etc/GMT-1
    Etc/GMT-10
    Etc/GMT-11
    Etc/GMT-12
    Etc/GMT-13
    Etc/GMT-14
    Etc/GMT-2
    Etc/GMT-3
    Etc/GMT-4
    Etc/GMT-5
    Etc/GMT-6
    Etc/GMT-7
    Etc/GMT-8
    Etc/GMT-9
    Etc/GMT0
    Etc/Greenwich
    Etc/UCT
    Etc/Universal
    Etc/UTC
    Etc/Zulu
    Europe/Amsterdam
    Europe/Andorra
    Europe/Athens
    Europe/Belfast
    Europe/Belgrade
    Europe/Berlin
    Europe/Bratislava
    Europe/Brussels
    Europe/Bucharest
    Europe/Budapest
    Europe/Chisinau
    Europe/Copenhagen
    Europe/Dublin
    Europe/Gibraltar
    Europe/Helsinki
    Europe/Istanbul
    Europe/Kaliningrad
    Europe/Kiev
    Europe/Lisbon
    Europe/Ljubljana

    Europe/London
    Europe/Luxembourg
    Europe/Madrid
    Europe/Malta
    Europe/Minsk
    Europe/Monaco
    Europe/Moscow
    Europe/Nicosia
    Europe/Oslo
    Europe/Paris
    Europe/Prague
    Europe/Riga
    Europe/Rome
    Europe/Samara
    Europe/San_Marino
    Europe/Sarajevo
    Europe/Simferopol
    Europe/Skopje
    Europe/Sofia
    Europe/Stockholm
    Europe/Tallinn
    Europe/Tirane
    Europe/Tiraspol
    Europe/Uzhgorod
    Europe/Vaduz
    Europe/Vatican
    Europe/Vienna
    Europe/Vilnius
    Europe/Warsaw
    Europe/Zagreb
    Europe/Zaporozhye
    Europe/Zurich
    GB
    GB-Eire
    GMT
    GMT0
    Greenwich
    Hongkong
    HST
    Iceland
    IET
    Indian/Antananarivo
    Indian/Chagos
    Indian/Christmas
    Indian/Cocos
    Indian/Comoro
    Indian/Kerguelen
    Indian/Mahe
    Indian/Maldives
    Indian/Mauritius
    Indian/Mayotte
    Indian/Reunion
    Iran
    Israel
    IST
    Jamaica
    Japan
    JST
    Kwajalein
    Libya
    MET
    Mexico/BajaNorte
    Mexico/BajaSur
    Mexico/General
    Mideast/Riyadh87
    Mideast/Riyadh88
    Mideast/Riyadh89
    MIT
    MST
    MST7MDT
    Navajo
    NET
    NST
    NZ
    NZ-CHAT

    Pacific/Apia Pacific/Auckland Pacific/Chatham Pacific/Easter Pacific/Efate Pacific/Enderbury Pacific/Fakaofo Pacific/Fiji Pacific/Funafuti Pacific/Galapagos Pacific/Gambier Pacific/Guadalcanal Pacific/Guam Pacific/Honolulu Pacific/Johnston Pacific/Kiritimati Pacific/Kosrae Pacific/Kwajalein Pacific/Majuro Pacific/Marquesas Pacific/Midway Pacific/Nauru Pacific/Niue Pacific/Norfolk Pacific/Noumea Pacific/Pago_Pago Pacific/Palau Pacific/Pitcairn Pacific/Ponape Pacific/Port_Moresby Pacific/Rarotonga Pacific/Saipan Pacific/Samoa Pacific/Tahiti Pacific/Tarawa Pacific/Tongatapu Pacific/Truk Pacific/Wake Pacific/Wallis Pacific/Yap PLT PNT Poland Portugal PRC PRT PST PST8PDT ROK Singapore SST SystemV/AST4 SystemV/AST4ADT SystemV/CST6 SystemV/CST6CDT SystemV/EST5 SystemV/EST5EDT SystemV/HST10 SystemV/MST7 SystemV/MST7MDT SystemV/PST8 SystemV/PST8PDT SystemV/YST9 SystemV/YST9YDT Turkey UCT Universal US/Alaska US/Aleutian US/Arizona US/Central US/East-Indiana US/Eastern US/Hawaii US/Indiana-Starke US/Michigan US/Mountain US/Pacific US/Pacific-New US/Samoa UTC VST W-SU WET Zulu

    see also References

  •  

     

    More Canon EOS 7D review are online, will keep updating this articles in the next few weeks

     

     

     

     

     

    The Canon EOS 7D was announced by Canon at the end of August 2009. It is a brand new camera filling a gap in the Canon DSLR lineup that has no predecessor before. Canon has made APS-C sensors DSLR for as long as any other camera makers and although they have done well in the past with their previous top of the line APS-C DSLR like the 50D, they did not have any “pro” class APS-C DSLR that directly answered to competition from Nikon D300 and the recently released D300s. By Roland Lim

    In early October we were lucky enough to test the soon-to-be released Canon EOS-7D. Samantha, a Nikon user, was interested in testing the camera, as a possible replacement for her aging D200. Samantha had hit a wall with her Nikon D200, finding the files lacked the detail she wanted for her intimate landscape photography.  By Darwin Wiggett and Samantha Chrysanthou

    Other Canon EOS 7D review