java编写的简单计算器

IMPORTJAVAAWTEVENTACTIONEVENTIMPORTJAVAAWTEVENTACTIONLISTENERIMPORTJAVAXSWINGJBUTTONIMPORTJAVAXSWINGJFRAMEIMPORTJAVAXSWINGJLABELIMPORTJAVAXSWINGJPANELIMPORTJAVAXSWINGJTEXTFIELDPUBLICCLASSCALCULATOREXTENDSJFRAMEPRIVATEJPANELJPPRIVATEJTEXTFIELDTADD1,TADD2,TADD3,TSUB1,TSUB2,TSUB3,TMUL1,TMUL2,TMUL3,TDIV1,TDIV2,TDIV3PRIVATEJLABELTSHOW,LABEL1,LABEL2,LABEL3,LABEL4,LABEL5,LABEL6,LABEL7,LABEL8PRIVATEJBUTTONRESULT,EXIT/构造器PUBLICCALCULATORSUPER“简易计算器“INIT/初始化PUBLICVOIDINIT/显示区TSHOWNEWJLABEL“感谢使用简易计算器“TSHOWSETBOUNDS0,0,300,20/加法区TADD1NEWJTEXTFIELDTADD2NEWJTEXTFIELDTADD3NEWJTEXTFIELDLABEL1NEWJLABEL“LABEL2NEWJLABEL“TADD1SETBOUNDS5,25,80,20LABEL1SETBOUNDS85,25,15,15TADD2SETBOUNDS100,25,80,20LABEL2SETBOUNDS180,25,15,15TADD3SETBOUNDS190,25,130,20/减法区TSUB1NEWJTEXTFIELDTSUB2NEWJTEXTFIELDTSUB3NEWJTEXTFIELDLABEL3NEWJLABEL“LABEL4NEWJLABEL“TSUB1SETBOUNDS5,50,80,20LABEL3SETBOUNDS85,50,15,15TSUB2SETBOUNDS100,50,80,20LABEL4SETBOUNDS180,50,15,15TSUB3SETBOUNDS190,50,130,20/乘法区TMUL1NEWJTEXTFIELDTMUL2NEWJTEXTFIELDTMUL3NEWJTEXTFIELDLABEL5NEWJLABEL“LABEL6NEWJLABEL“TMUL1SETBOUNDS5,75,80,20LABEL5SETBOUNDS85,75,15,15TMUL2SETBOUNDS100,75,80,20LABEL6SETBOUNDS180,75,15,15TMUL3SETBOUNDS190,75,130,20/除法区TDIV1NEWJTEXTFIELDTDIV2NEWJTEXTFIELDTDIV3NEWJTEXTFIELDLABEL7NEWJLABEL“/“LABEL8NEWJLABEL“TDIV1SETBOUNDS5,100,80,20LABEL7SETBOUNDS85,100,15,15TDIV2SETBOUNDS100,100,80,20LABEL8SETBOUNDS180,100,15,15TDIV3SETBOUNDS190,100,130,20RESULTNEWJBUTTON“开始计算“RESULTSETBOUNDS10,140,100,40EXITNEWJBUTTON“退出“EXITSETBOUNDS180,140,100,40JPJPANELTHISGETCONTENTPANEJPSETLAYOUTNULLJPADDTSHOWJPADDTADD1JPADDLABEL1JPADDTADD2JPADDLABEL2JPADDTADD3JPADDTSUB1JPADDLABEL3JPADDTSUB2JPADDLABEL4JPADDTSUB3JPADDTMUL1JPADDTMUL2JPADDLABEL5JPADDTMUL3JPADDLABEL6JPADDTDIV1JPADDLABEL7JPADDTDIV2JPADDLABEL8JPADDTDIV3JPADDRESULTJPADDEXIT/动作事件EXITADDACTIONLISTENERNEWACTIONLISTENEROVERRIDEPUBLICVOIDACTIONPERFORMEDACTIONEVENTE/TODOAUTOGENERATEDMETHODSTUBSYSTEMEXIT0RESULTADDACTIONLISTENERNEWACTIONLISTENERPUBLICVOIDACTIONPERFORMEDACTIONEVENTEDOUBLEDNULLSTRINGANULL,BNULLATADD1GETTEXTBTADD2GETTEXTIFAISEMPTYTADD3SETTEXTD“/将D转换为字符串型/TADD3SETTEXTSTRINGVALUEOFDATSUB1GETTEXTBTSUB2GETTEXTIFAISEMPTYTSUB3SETTEXTD“ATMUL1GETTEXTBTMUL2GETTEXTIFAISEMPTYTMUL3SETTEXTD“ATDIV1GETTEXTBTDIV2GETTEXTIFAISEMPTYTDIV3SETTEXTSTRINGVALUEOFD/主函数PUBLICSTATICVOIDMAINSTRINGARGSCALCULATORCALNEWCALCULATOR