java編寫(xiě)的簡(jiǎn)單計(jì)算器代碼

IMPORTJAVAAWTIMPORTJAVAAWTEVENTIMPORTJAVAXSWINGIMPORTJAVAUTILVECTORPUBLICCLASSTUOSTRINGSTR1“0“/運(yùn)算數(shù)1初值一定為0為了程序的安全STRINGSTR2“0“/運(yùn)算數(shù)2STRINGFH“/運(yùn)算符STRINGJG“/結(jié)果/狀態(tài)開(kāi)關(guān)重要INTK11/開(kāi)關(guān)1用于選擇輸入方向?qū)⒁獙?xiě)入STR2或STR2INTK21/開(kāi)關(guān)2符號(hào)鍵次數(shù)K21說(shuō)明進(jìn)行的是2398這樣的多符號(hào)運(yùn)算INTK31/開(kāi)關(guān)3STR1是否可以被清01時(shí)可以1時(shí)不能被清0INTK41/開(kāi)關(guān)4STR2同上INTK51/開(kāi)關(guān)5控制小數(shù)點(diǎn)可否被錄入1時(shí)可以1輸入的小數(shù)點(diǎn)被丟掉JBUTTONJICUNQI/寄存器記錄是否連續(xù)按下符號(hào)鍵VECTORVTNEWVECTOR20,10JFRAMEFRAMENEWJFRAME“SUNSHINE計(jì)算器“JTEXTFIELDJG_TEXTFIELDNEWJTEXTFIELDJG,20/20列JBUTTONCLEAR_BUTTONNEWJBUTTON“清除“JBUTTONBUTTON0NEWJBUTTON“0“JBUTTONBUTTON1NEWJBUTTON“1“JBUTTONBUTTON2NEWJBUTTON“2“JBUTTONBUTTON3NEWJBUTTON“3“JBUTTONBUTTON4NEWJBUTTON“4“JBUTTONBUTTON5NEWJBUTTON“5“JBUTTONBUTTON6NEWJBUTTON“6“JBUTTONBUTTON7NEWJBUTTON“7“JBUTTONBUTTON8NEWJBUTTON“8“JBUTTONBUTTON9NEWJBUTTON“9“JBUTTONBUTTON_DIANNEWJBUTTON“JBUTTONBUTTON_JIANEWJBUTTON“JBUTTONBUTTON_JIANNEWJBUTTON“JBUTTONBUTTON_CHENGNEWJBUTTON“JBUTTONBUTTON_CHUNEWJBUTTON“/“JBUTTONBUTTON_DYNEWJBUTTON“/PUBLICSTATICVOIDMAINSTRINGARGSTUOTUONEWTUO/TUOBUTTON0SETMNEMONICKEYEVENTVK_0/等效鍵/其它等效鍵略,JG_TEXTFIELDSETHORIZONTALALIGNMENTJTEXTFIELDRIGHT/文本框右對(duì)齊JPANELPANNEWJPANELPANSETLAYOUTNEWGRIDLAYOUT4,4,5,5/四行四列邊距為5像素PANADDBUTTON7PANADDBUTTON8PANADDBUTTON9PANADDBUTTON_CHUPANADDBUTTON4PANADDBUTTON5PANADDBUTTON6PANADDBUTTON_CHENGPANADDBUTTON1PANADDBUTTON2PANADDBUTTON3PANADDBUTTON_JIANPANADDBUTTON0PANADDBUTTON_DIANPANADDBUTTON_DYPANADDBUTTON_JIAPANSETBORDERBORDERFACTORYCREATEEMPTYBORDER5,5,5,5/PAN對(duì)象的邊距JPANELPAN2NEWJPANELPAN2ADDJG_TEXTFIELDJPANELPAN3NEWJPANEL/為什么要多此一句呢因?yàn)槲也粫?huì)設(shè)置按鈕的大小PAN3SETLAYOUTNEWFLOWLAYOUTPAN3ADDCLEAR_BUTTON/CLEAR_BUTTONSETSIZE10,10/設(shè)置清零按鈕的大小嗎的不好使FRAMESETLOCATION300,200/主窗口出現(xiàn)在位置FRAMESETRESIZABLEFALSE/不能調(diào)大小FRAMEGETCONTENTPANESETLAYOUTNEWBORDERLAYOUTFRAMEGETCONTENTPANEADDPAN2,BORDERLAYOUTNORTHFRAMEGETCONTENTPANEADDPAN,BORDERLAYOUTCENTERFRAMEGETCONTENTPANEADDPAN3,BORDERLAYOUTSOUTHFRAMEPACKFRAMESETVISIBLETRUE/以上是控件和布局/下面是事件處理程序/數(shù)字鍵CLASSJIANTINGIMPLEMENTSACTIONLISTENERPUBLICVOIDACTIONPERFORMEDACTIONEVENTESTRINGSSJBUTTONEGETSOURCEGETTEXTJICUNQIJBUTTONEGETSOURCEVTADDJICUNQIIFK11IFK31STR1“K51/還原開(kāi)關(guān)K5狀態(tài)STR1STR1SS/K21K3K31/SYSTEMOUTPRINTLNSTR1JG_TEXTFIELDSETTEXTSTR1/顯示ELSEIFK12IFK41STR2“K51/還原開(kāi)關(guān)K5狀態(tài)STR2STR2SS/K22K4K41/測(cè)試/JG_TEXTFIELDSETTEXTSTR2/符號(hào)CLASSJIANTING_FHIMPLEMENTSACTIONLISTENERPUBLICVOIDACTIONPERFORMEDACTIONEVENTESTRINGSS2JBUTTONEGETSOURCEGETTEXTJICUNQIJBUTTONEGETSOURCEVTADDJICUNQIIFK21K12/開(kāi)關(guān)K1為1時(shí),向數(shù)1寫(xiě)為2時(shí)，向數(shù)2寫(xiě)K51FHSS2K2K21/按符號(hào)鍵的次數(shù)ELSEINTAVTSIZEJBUTTONCJBUTTONVTGETA2IFCGETTEXTEQUALS“STR1JGK12/開(kāi)關(guān)K1為1時(shí),向數(shù)1寫(xiě)為2時(shí)，向數(shù)2寫(xiě)K51K41FHSS2K2K21/清除CLASSJIANTING_CLEARIMPLEMENTSACTIONLISTENERPUBLICVOIDACTIONPERFORMEDACTIONEVENTEJICUNQIJBUTTONEGETSOURCEVTADDJICUNQIK51K21K11K31K41STR1“0“STR2“0“FH“JG“JG_TEXTFIELDSETTEXTJGVTCLEAR/等于CLASSJIANTING_DYIMPLEMENTSACTIONLISTENERPUBLICVOIDACTIONPERFORMEDACTIONEVENTEJICUNQIJBUTTONEGETSOURCEVTADDJICUNQIYUNSK11/還原開(kāi)關(guān)K1狀態(tài)/STR1JGK21K31/還原開(kāi)關(guān)K3狀態(tài)K41/還原開(kāi)關(guān)K4狀態(tài)STR1JG/為7512517這種計(jì)算做準(zhǔn)備/小數(shù)點(diǎn)CLASSJIANTING_XIAOSIMPLEMENTSACTIONLISTENERPUBLICVOIDACTIONPERFORMEDACTIONEVENTEJICUNQIJBUTTONEGETSOURCEVTADDJICUNQIIFK51STRINGSS2JBUTTONEGETSOURCEGETTEXTIFK11IFK31STR1“K51/還原開(kāi)關(guān)K5狀態(tài)STR1STR1SS2/K21K3K31/SYSTEMOUTPRINTLNSTR1JG_TEXTFIELDSETTEXTSTR1/顯示ELSEIFK12IFK41STR2“K51/還原開(kāi)關(guān)K5狀態(tài)STR2STR2SS2/K22K4K41/測(cè)試/JG_TEXTFIELDSETTEXTSTR2K5K51/注冊(cè)監(jiān)聽(tīng)器JIANTING_DYJT_DYNEWJIANTING_DYJIANTINGJTNEWJIANTING/臨聽(tīng)數(shù)字鍵JIANTING_FHJT_FHNEWJIANTING_FH/臨聽(tīng)符號(hào)鍵JIANTING_CLEARJT_CNEWJIANTING_CLEAR/清除鍵JIANTING_XIAOSJT_XSNEWJIANTING_XIAOS/小數(shù)點(diǎn)鍵BUTTON7ADDACTIONLISTENERJTBUTTON8ADDACTIONLISTENERJTBUTTON9ADDACTIONLISTENERJTBUTTON_CHUADDACTIONLISTENERJT_FHBUTTON4ADDACTIONLISTENERJTBUTTON5ADDACTIONLISTENERJTBUTTON6ADDACTIONLISTENERJTBUTTON_CHENGADDACTIONLISTENERJT_FHBUTTON1ADDACTIONLISTENERJTBUTTON2ADDACTIONLISTENERJTBUTTON3ADDACTIONLISTENERJTBUTTON_JIANADDACTIONLISTENERJT_FHBUTTON0ADDACTIONLISTENERJTBUTTON_DIANADDACTIONLISTENERJT_XSBUTTON_DYADDACTIONLISTENERJT_DYBUTTON_JIAADDACTIONLISTENERJT_FHCLEAR_BUTTONADDACTIONLISTENERJT_C/關(guān)閉事件處理程序FRAMEADDWINDOWLISTENERNEWWINDOWADAPTERPUBLICVOIDWINDOWCLOSINGWINDOWEVENTESYSTEMEXIT0/計(jì)算PUBLICVOIDYUNSDOUBLEA2/運(yùn)算數(shù)1DOUBLEB2/運(yùn)算數(shù)2STRINGCFH/運(yùn)算符DOUBLEJG20/結(jié)果IFCEQUALS“/SYSTEMOUTPRINTLN“請(qǐng)輸入運(yùn)算符“JG_TEXTFIELDSETTEXT“請(qǐng)輸入運(yùn)算符“ELSESYSTEMOUTPRINTLN“STR1“STR1/調(diào)試時(shí)使用SYSTEMOUTPRINTLN“STR2“STR2/調(diào)試時(shí)使用SYSTEMOUTPRINTLN“運(yùn)算符“FH/調(diào)試時(shí)使用IFSTR1EQUALS“/字符串“轉(zhuǎn)換成DOUBLE型數(shù)據(jù)時(shí)會(huì)出錯(cuò)所以手工轉(zhuǎn)STR1“00“IFSTR2EQUALS“STR2“00“A2DOUBLEVALUEOFSTR1DOUBLEVALUEB2DOUBLEVALUEOFSTR2DOUBLEVALUESYSTEMOUTPRINTLN“DOUBLE型的A2“A2/調(diào)試時(shí)使用SYSTEMOU