经典Java程序源代码.docx
经典Java程序源代码1 .加法器(该java源文件的名称是Addenjava)importjava.awu*;importjava.awt.cvcnt.÷importjavax.swing.;pub1.icC1.aXSAdderIrnp1.ernen1.sAc1.ion1.is1.enerIJFramCAddcrFramc;JTextFiekITOPrandkJ1.extFieIdTOpr三1.2:J1.abeI1.Add.1.Sum:.!ButtonBA(M,BCIcar;JPaneIJP1.JP2;pub1.icAddert)IA(WcrFran=ncwJFramc(,Ad(krFramc,*);TOpGUHII:OeWJTex1.Fiek1.CQO');TOprand2=newJTcxtFickICQO"):1.Add=11cwJ1.abc1.C'+");1.Sum=ncwJ1.abc1("=");BAdd二IIeWJBuiton(wAddw);BCIcar=newJBuUonCCkarw);JPI=newJPanc1.();JP2=ncwJPand();BAdd.MdAciion1.iNenerUhisXBCIear.<ddAc1.ion1.istener(newAction1.is1.enert)pub1.icvoidactinPerfor11d(ActionEven1.event)TOpramII.SCt1.cxtC0.();TOrax1.2,set1.ext(nO.O"):1.Sum.set1ex1.(M=M):I);A(MerFrame.add(JP1.);JP1.addiTOprand1.):JPI.ad1.Add):JPI.a<id(TOprand2);JP1.add(1.Sum);AicrFran.add(JP2);JP2.a<1.d(BAdd);JPZiKkkBCIear):AddcrFra11c.gctContcntPane<).set1.aywt(r>ewBordcr1.ay(HitO):A(WcrFran.gctComcntPanc0.a<kKJP1.B<>rder1.-ayou1.NORTH);AdderFjme.getCon(eHPane().ad<1.(JP2,Border1.ayoui.SOUTH>AddcrFramc.addWindow1.istcncrtnewWindowAdap<cr()pub1.icvoidWiIKIoWC1.oSing(WifK1.oWEVen1.event)Systcm.cxit();II)；AdderF11n.pack():A(MerFne.seVisib1.e(rue);ACk1.erFnin.se1.Resizab!e(fa1.se):AddcrFrame.setSizc<25OJ(X):pub1.icvoidactionPerfbrmed(ActionEv,enevent)1.Sun.setTex("=+sun);pub1.icstaticvoidmain(String(args)Adderidder=ncwAdder(>:名称为NotepadJava)2 .小型记事本(该java源文件由两个类构成,importjava.aw(.*;importjava.awt.even1.*:importjavax.swing.;importjava.io.*;dnssInynotepadextendsJFrameFi1.ef1.1.c=nukCo1.orCo1.or=Cotormd:myntHepad()ini1.Tex1.Conten1.();initMcnu();initAboutDiaIogO;voidinitTcxtC>ntcnt()IgetCon(en(PaneO,<i<k1.(newJSCrH1.Pane(CoIMem):J1.cxtPancCOn1.Cm=OCWJ1.cxPanc();JFiIeChooseropenfi1.e=newJRIeChooseit):JCoIOtChooseropenco1.or=newJCo1.rChooser():JDiaIogabout=ncwJDiaIog(Ihis);JMcnuBarmcnu=ncwJMcnuBarO;菜单栏的各个菜单项JMenu(menus=11ewJMenu(11newJMenU("文件")mewJMem("编即M1.eWJMCnU("关于");“文件”菜单项的四个下拉菜总"编辑菜单的四个下拉菜单JMcnu1.tcmoptionof11cnu11=ncwJMcnu1.tcmHH(newJMenuItcmCJJriB',>.ncwJMenu1.tcm("Sf1.JF*).ncwJMCnIJItCmr'保存").ncWJMenU1.temr'退出newJMCnUkemC及制"),newJMenuhem("剪切"),newJMenUhemr粘贴")mcwJMeiwItemC强色.).newJMenukemC关于。)；voidinitMcnu()for(inti=OJ<menus.1.eng(hi÷+)nnu.add(nenusi)ir(in1.j=Oij<ptir>fmenu(i.IengthJ+)(mcnusi).add(op(ionofnwnuij);op(ionofnuij1.addAc(ion1.is(e11ertaction):IIthis.scUMenuBar(mcnu);Action1.istcncraction=ncwAction1.istcncrO添加事件监听pub1.icvoidMtionPe向med(Ae1.ionEVeme)Stringname=e.getActionCommand():JMenuItcmMI=(JMenuhem)c.gcSourcc();if("新建”.equa1.s(name)<contcnt.sctTcxt(*):f1.!e=nu1.1.;Ie1.seiff解开1.equakname>)(if(fi1.c!=nu1.1.)openfik.setSe1.ec<edFi1.e(fi1.e);m1.returnVa1.=open1.c.shosOpcnDia1.og(myno1.epad.1.his>:if(rctumVa1.=JFi1.eChscr.APPROVEJ)F11ON)f1.1.e=cpenfi1.e.getSe1.ec(edFi1.e():unfo1.d(>:e1.seif保存".equak(namc)if(1.e!=nu1.1.)pen1.!e.setSe1.ectedFi1.e(fi1.e):ntreturnVai=opcnfi!c.showSavcDia1.og(mynotcpad.this):if(rc1.urnVa1.=JFi1.cChooscr.APPROVE_OPTION)(fi1.e=openfi1.e.getSe1.ec(edFi1.e():saving();IIe1.seiff退出1.equaMnamc)mynotepadf=newmyno(epad();intS=JopdonpaneshowConfinnDid1.ogFmiH?M."jHHr.JOp1.ionPane.YES_NO_OPT1.ON);jf(s=jOptionPanc.YES)F1.ON)Systcm.Cxit(O);Ie1.seif(w!7iJJM.equa1.s(name»(contcnt.cut();Ie1.seiff复制".equa1.s(name)(con(cnt.coy();e1.sei粘贴”.equak(name>)03BJmS=-s,d一QUo-2.3282280一x%o三3No-Xo1.Um>.=o-uo3j>三v三a-xu三tu三Av>一£MUUU三M。-=A。一工)-n一Os三WSP三二一-cMoqs.moXos-.Od-SPSTnOqK一UDEnUNIIntW.*+张三%F一XUO-8=2EOX-.三01UXJ三ou!,.2三-三“duouu¾oPMoq,.JMM三2o。70OOU)(GUi2cngst建，=一OsO一NrpdcBuouvoidunfo1.d()try(FiIcRcaderRCadknCWFiIcRcadcrtfiIc);int1.en=(infi1.e.!engh(>:charbuf1.*er=newcharIen;Readf.read(bu1.Ycr.():ReadfdOWXCo1.Nen1.Se1.TeX(newSring(buffer);Icatch<Exccp(ionc)(e.xin(SackTrace();Ivoidini(AboutDiaJog()Iabout.SCt1.ayQUtmCWGrid1.ayout(SJ):atxwt.gctCon(entPanc().sctB；>ckgnound(Co1.or.whi(c);about.getConte11(Pane().add(newJ1.abeK”我的记程序”)H对话框内?about.getCnten1.Pand).add(11ewJ1.a1.1.(",JFwxm):about.gctContcntPane().add(newJ1.abc1.("2007年12月，):about.sctModa1.(1.11*c);设置对话框的湘显示about.setSize(1.00.100);about.sct1.ca(ion(250.170);设置对话框显示位置Icu1.atorJava)pub1.icc1.assNotepadIpub1.icsta1.kvoidmain(Siringargs)"入口main函数mynmcpadnotcd=newmynotcpad();e<J.addWindow1.isienertnewWindoWAdaPIerOI)；记出本标即设置记事本大小"设置记事本显示位竹.n<xedseEUe(我的记十本程序，!><ed.setSizd640.320);ncd.show():no<cd.set1.ocation(1.50,1.(M);3 .简单计算器(该java源文件的名称是Simp1.eca1.importjava.awt.:importjava.aw(.cvcnt.*;importjavax.swing.;c1.assSimp1.ecaIcuIakHstaticStringPoinyneWSring();staticSi
