component.addMouseMotionListener(newMyMouseMotionListener());publicclassMyMouseMotionListenerextendsMouseMotionAdapter{publicvoidmouseMoved(MouseEventevt){//Pro...

component.addMouseListener(newMyMouseListener());publicclassMyMouseListenerextendsMouseAdapter{publicvoidmouseClicked(MouseEventevt){if((evt.getModifiers()&...

Youcangetthekeythatwaspressedeitherasakeycharacter(whichisaUnicodecharacter)orasakeycode(aspecialvaluerepresentingaparticularkeyonthekeyboard).component.addKeyL...

AnobjectwishingtofireitemeventsmustimplementItemSelectable.Thisexampleshowstypicalcodethatanobjectmustimplementtofireitemevents.Whenanitemeventistobefired,fireI...

Ifaneventhandlerisspecifictoacomponent(thatis,notsharedbyothercomponents),thereisnoneedtodeclareaclasstohandletheevent.Theeventhandlercanbeimplementedusinganano...

component.addFocusListener(newMyFocusListener());publicclassMyFocusListenerextendsFocusAdapter{publicvoidfocusGained(FocusEventevt){//Thecomponentgainedthefocus...

ActioneventsarefiredbysubclassesofAbstractButtonandincludesbuttons,checkboxes,andmenus.AbstractButtonbutton=newJButton("OK");button.addActionListener(newMyActio...

publicclassDropTargetComponentextendsJComponentimplementsDropTargetListener{publicDropTargetComponent(){newDropTarget(this,this);}publicvoiddragEnter(DropTarget...

ThedroptargetinthisexampleonlyacceptsdroppedStringobjects.AdroptargetmustimplementDropTargetListenerandsupplyanimplementationfordrop().publicvoiddrop(DropTarget...

Thisexampledemonstratesthecodeneededtomakeacomponentdraggable.Theobjectbeingtransferredinthisexampleisastring.publicclassDraggableComponentextendsJComponentimpl...

//Ifanimageisonthesystemclipboard,thismethodreturnsit;//otherwiseitreturnsnull.publicstaticImagegetClipboard(){Transferablet=Toolkit.getDefaultToolkit().getSyst...

Thisexamplesdefinesmethodsforgettingandsettingtextonthesystemclipboard.//Ifastringisonthesystemclipboard,thismethodreturnsit;//otherwiseitreturnsnull.publicstat...

一、base64加密解密加密：[python] viewplain copy  print?>>> import base64  >>> encode = base64.b6...

玩下base64的php图片处理publicfunctiontestimg(){$img_dir='../public/1.jpg';//源图片路径$base64_string=$this->imgToBase64($img_dir);//把图片给base64一下echo'<imgsrc="'.$base6...

https://stackoverflow.com/questions/475421/base64-encode-a-pdf-in-cUseFile.ReadAllBytestoloadthePDFfile,andthenencodethebytearrayasnormalusingConvert.ToBase64St...