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VDate: lT
Evemt Hamdlimq
Event: Chamqe in status of am abfec
Press a buttom,draq & adrop of moue
EVemt Hamdinq (ompoments
Evenmts
An ewCmt 1s a chanqe in Stufe or m
Ob/ect
Evemt Sorre
Ls m_object fhat qemorates m ewemt
Cistemers
An object fhat istoms to am evmt
A Dstemer. qet motiied when G)
evemt Occcrs
How are eents hmdled ?
O A
sends it with the Sounte to me ov
more /iste es
SOrT Cveny
Omre lisfem rere/ves the Nent, the
eNomt cwill be processed efrDed
o.
7w0 tupeS 01 CYOnts
O Low /0vel evonts
Repreromt direcf commmicatio pom
User
e key_presse Telease
Fo1owmy re lowjeve! ewemh:
0 CmmpdnentEvemt.
FocusE VOm F
keyE vemt
CodtainerEvemt
) WindowEvemt

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Righ 1velevoms: (o Sematc evon
E iCap5u/ates meminq of a_uSer
In1ertuce compovemt
foliowinq ne hiqh lerel' eWmt
OActiomElomd
Adjustm etEvemt (scaol)brr
ZfomE VCNnt
ItemE vem t
TentEv emt
Evemt
ist e 07
Evemt Evemt method
Sore

TTO
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1mporf jwca, Swimq.*
impert
/mpo7 (Owa. Gcut. evemt|
owa, a wt.
Class myevemt extemds JFrm2e
J/mp/ememts Achnmtiifem e
mYeN Cmt )
WAAKTRbaReaU DRuttor(iaCLALON,
TeaiFiet cd 1:neuw Jleatfietd (is)
5ellay0uf(new Flowlayout c))
ddl(b)
abebeiady
JButfom 90w JButtm ("clic/e ");
b.adelActicm listomer (this)
add (b);_
SefSie 200,2o0)
Sef Vib/e (_frue)
Setpetqult ClosedperaiOm JFoame EX TT_ONLa
public e void ActIonPetormed(AchenFvew
tsetTeat(" Heluo")
P.s vmShimq oqs)
myevt m 2ew_myevetC)

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aivodeupened
class MWind exkord inm
Label A1
Mhlind O
seldayeAut
add
add
Windeuli his)
public NO1d uindou Opened(ndnuend
ttseTet winoudoftnad

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Windouwtisten r Clas
public class windowerample eatemdJs
JFrome implemens Windowlistem er
o b j e e t
u A t
be
2 0 q
s t o r c 4
abtornpsneAt.
WimdowLIMp/ e )
dddwimdowListemer (this)
SetSie 400,400o
Setlayout ( mul)
SetVishb/e (frue)
ps.v.m Stvinq t) oqs
windowexamp ie w new window exmple)
pubiicvoid windowAciuted (WmdouwEveB e )
S.op." achivafed ");
pubiic vord wmdowClosog(WindowEvemt e
S.0.p. (" closimq")
public voic wmdowDeach vated (
Wim dowEvent e)
S 0 p.(" Deact vated");

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Java Adopter Classes
Provides deroult implem
emtutioon
of isteme intortares
Lf we /nhomit the adap1or
class
we will not be force d topovioe
/272p/ememtuh m ut au methods or
istene 1ntvrtuces. So t Saves
ode.
Owa. awt.ew Omt/tdapter
ListomeTIntertace
Wimdo wBdo listem er WImdowPoapt py
KeyListemex
MtaselUTtene
MouseMoionLisfemoY
A.dapter Class
Keyfdapter
Focuststemor
Lompom entlistener
CntwnertistenY
Hieaarhy3oumdslitener
public Class CwindowCXOmp/e extermds
Thepe Windorwhdapfer
windouGKONp/e ()
JFrme new RPe ()
1.addwIn dowlistener e Nirdaurdopdto4)
sefize (300,300)ISeflayoui (mulu)
sef Visible ( frue)
p.s,V, m ( Shinq I qs)
CUmdOwOCmpiew New wIndocvCXqYple0

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public vojd wimdowClosinq(WindowEVon e)
S.op ( windocw_clored").
dvantug es
Reuseability of classes
Makes císes more visibe
Omretated closses cm wOr
toerher
Snme class cm be usedim my Cwaus

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T
Date:I|
/17ONYmoUs InnerClass 17mCwa
ZmeC/ass without mome
Cmly Simqle. object iÍ oeoted
J
Defn:
A claSs thaf hos No manme kmowr
as cm momymous /nmer class
Used you howe to 0ove7dp
a method of tlass /7tetare
Cm be ceatecd 1 tw0 waysS
O ClasS ( abstoa ct r comTe1e
InteÍo Ce_
abstra ct class_pOIOn
abstadct yoid eat.()
class est
P.Sym 51nmqtj_aqS)_
Peoscm N etw peISON t)
V0id eat () OvCrTide
.0p Nire"):
p eat )__

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Date: L
inter tace
/nictu ce_eatable
void eat c)
Class fest
eatuble e mew eatoble()_
override
pubiic yoic eat C)
S.op(Nice"
e.eatt

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Jmemy Relat ecd classe
JmemBar, TMemu JMenulfem
pant of swimq packaqe
JMemuBar ttaimsJMemu dbjects
J Memu 0b/ect awhem seiectecidiplca
DOpop Showimq Cme c more JMemdTfe
are
COms1auctor
Tmemu Bar (
Tmen )
Tm emu Stvmg mame
Methods
add Tmemu C)_
add ( Compmemt c)
dd Compomemt n t imdea
add d Stzin S)-Oppend
JMenaBar mb: mew J17or7UKr()
Imemut: ew TMemu ("_File");_
e 22ew TMenu ("Edit")
Jmenultem o : mecw 7Memwl1em["pon
.add o)_

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TFile ChooseN Swinq).
CJsed to selec a hl, folder by arer
Constouctoa
Jfie ChoosCr () -User odefault dizectoay
TF7e Chooser(SIrinq) - qivn path
ThieCh00s File P)-q/te fe as poh
Method
I show0penDialoq()
getSelectecl Frle )
e1Ab solutePath )
TCol-Chods er
Used to Create a color chooser dialoq
bo so that Us er com serect om COtbr.
Constructor
(O) Jolorhooser C) '
Osed. to crcate a Color cChoosCr pOmej
Cvifh white co/0 /nitially
TColor Choosor color initialco lor)
OIsed to cyeate a colo choose pmej
CWIth Specifred coro initally .
Methods
O vord addchooserPamet (Absbartlolorhoasfar
Pmei)
Us ed to add a colochoose prmetto the
color hooso
O stat1C (olo shocw DIalo q ( Compooomt c
Stormq tifie'Color mialCo10r)
CsedU to show color choasco dialoq bo

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DialoqS Messaqe,
Contirmatom)1rp)F
TAle Ghooser, JCOlorChoose
Dialoq windocw is am /ndepemdem
Sabcuim do w to show femPorrY Noe
apart hom maun Swlng
Most dialoqs poesont C eot
_ Cuorn
ihq 7o User bu dialo94 C
po esomt mbqes, dioectory tres
TO Ceate mple dialoqs you Cn
ImP
appn cwindea
USe OptionPome class
TWO Othor closses TToloochooser P
JHethoaser Supply Stom dad dialoqs
Dialo q b0
C M1ode aialog bon
(3 modeless didloq box