//CreateacalendarobjectandinitializetoaparticularhourifdesiredCalendarcalendar=newGregorianCalendar();calendar.set(Calendar.HOUR_OF_DAY,13);//1pm//Createadatesp...

//CreateanummberspinnerJSpinnerspinner=newJSpinner();//Addthelistenerspinner.addChangeListener(newSpinnerListener());//Changingthevalueprogrammaticallyalsofires...

Thisexamplereplacesthedefaulteditor(aJFormattedTextField)inaspinnercomponentwithacustomeditor.Thecustomeditorissimplyapanelthatdisplaysacolor.Thenameofthecolort...

Thisexampledemonstrateshowtobuildthreekindsofspinners.Anumberspinner://CreateanumberspinnerJSpinnerspinner=newJSpinner();//Setitsvaluespinner.setValue(newIntege...

Theslidersupportstwolevelsoftickmarks,majorandminor.Typically,theminortick-markspacingissmallerthanthemajortick-markspacing.Also,theminortick-markspacingisamult...

Bydefault,theslidercantakeonanyvaluefromtheminimumtothemaximum.Itispossibletoconfiguretheslidertoallowonlyvaluesattickmarks(seee797显示JSlider的标记).Thisisdonebycal...

//Tocreateaslider,seee794创建JSlider组件//Getthecurrentvalueintvalue=slider.getValue();//Gettheminimumvalueintmin=slider.getMinimum();//Getthemaximumvalueintmax=sli...

Besidesbeingeitherhorizontalorvertical,aslidercanalsobeinverted.Aninvertedhorizontalslidermovesfromright-to-left.Aninvertedverticalslidermovesfromtop-to-bottom....

Thisexampledemonstrateshowtodisplaylabels(numericalvalues)atthemajorticks(seee797显示JSlider的标记).//Createahorizontalsliderthatmovesleft-to-rightJSliderslider=newJ...

//CreatehorizontalsliderJSliderslider=newJSlider();//Registerachangelistenerslider.addChangeListener(newChangeListener(){//Thismethodiscalledwhenevertheslider's...

//Createahorizontalsliderwithmin=0,max=100,value=50JSliderslider=newJSlider();//Createahorizontalsliderwithcustomminandmax;valueissettothemiddleintminimum=-255;...

Ascrollbarinascrollpanecanbesettoappearonlyasneeded,alwaysappear,orneverappear.Bydefault,boththeverticalandhorizontalscrollbarsinascrollpaneappearonlywhenneeded...

Ascrollbarinascrollpanefiresadjustmenteventswheneveritsvaluechanges.//CreateascrollabletextareaJTextAreatextArea=newJTextArea();JScrollPanepane=newJScrollPane(t...

在jsp中，page指令的（）属性用来引入需要的包或类。 A、extends B、import C、language D、contentType 解答：B...

  A．隐式对象是WEB容器加载的一组类的实例，可以直接在JSP页面使用 B．不能通过config对象获取ServletContext对象 C．response对象通过sendRedirect方法实现重定向 D．只有在出错处理页面才有exception对象 解...