Hibernate Annotation
Json
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http://www.ibm.com/developerworks/cn/java/j-javares.html
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涓漢瑙夊緱姣旇緝濂界殑錛?br>BBS錛歫forum 緹庝腑涓嶈凍鐨勬槸瀹樻柟娌℃湁綆浣撲腑鏂囩増錛屼絾鏄湁綣佷綋鐗堬紝涓嶇煡涓轟綍錛熸煇浜涚ぞ鍖烘湁鑷繁緲昏瘧綆浣撲腑鏂囩増銆?br>http://www.jforum.net/index.jsp
Blog錛歊oller Weblogger 錛宻un鐨刡log紺懼尯鎵浣跨敤鐨刡log緋葷粺銆備釜浜烘劅瑙夐厤緗瘮杈冨鏉傘?br>http://rollerweblogger.org/project/
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鐢ㄦ硶錛歯ative2ascii [-reverse] [-encoding 緙栫爜] [杈撳叆鏂囦歡 [杈撳嚭鏂囦歡]]
-[options]錛氳〃紺哄懡浠ゅ紑鍏籌紝鏈変袱涓夐」鍙緵閫夋嫨
-reverse錛氬皢Unicode緙栫爜杞負鏈湴鎴栬呮寚瀹氱紪鐮侊紝涓嶆寚瀹氱紪鐮佹儏鍐典笅錛屽皢杞負鏈湴緙栫爜銆?br>-encoding encoding_name錛氳漿鎹負鎸囧畾緙栫爜錛宔ncoding_name涓虹紪鐮佸悕縐般?/span>
[inputfile [outputfile]]
inputfile錛氳〃紺鴻緭鍏ユ枃浠跺叏鍚嶃?br>outputfile錛氳緭鍑烘枃浠跺悕銆傚鏋滅己灝戞鍙傛暟錛屽皢杈撳嚭鍒版帶鍒跺彴
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1銆佽幏鍙栧綋鍓嶆椂闂達紝鍜屾煇涓椂闂磋繘琛屾瘮杈冦傛鏃朵富瑕佹嬁long鍨嬬殑鏃墮棿鍊箋?br />聽鏂規硶濡備笅錛?/font>
瑕佷嬌鐢?/font> java.util.Date 銆傝幏鍙栧綋鍓嶆椂闂寸殑浠ｇ爜濡備笅
Date date = new Date();
date.getTime() ;
榪樻湁涓縐嶆柟寮忥紝浣跨敤
System.currentTimeMillis()
;
閮芥槸寰楀埌涓涓綋鍓嶇殑鏃墮棿鐨?span lang="EN-US" style="FONT-FAMILY: Verdana">long鍨嬬殑鏃墮棿鐨勬縐掑鹼紝榪欎釜鍊煎疄闄呬笂鏄綋鍓嶆椂闂村間笌1970騫翠竴鏈堜竴鍙烽浂鏃墮浂鍒嗛浂縐掔浉宸殑姣鏁?br />
2銆佽幏鍙栨煇縐嶆牸寮忕殑鏃ユ湡銆?br />鏂規硶錛?br />
鑾峰彇鏃墮棿鐨勬牸寮忥紝闇瑕佺敤鍒頒竴涓笓闂ㄧ敤浜庢椂闂存牸寮忕殑綾?/span> java.text.SimpleDateFormat 銆?/span>
棣栧厛錛屽畾涔変竴涓?/span> SimpleDateFormat 鍙橀噺
SimpleDateFormat sdf = new SimpleDateFormat("",Locale.SIMPLIFIED_CHINESE);
榪欎釜鏋勯犲嚱鏁扮殑瀹氫箟濡備笅錛?
SimpleDateFormat(String 聽 pattern, Locale 聽 locale)
絎竴涓弬鏁?/span> pattern 錛屾垜浠悗闈㈠啀瑙ｉ噴錛岃繖閲屾垜浠嬌鐢ㄤ竴涓?/span> "", 絎簩涓弬鏁幫紝鏄敤鏉ヨ緗椂鍖虹殑錛岃繖閲岀敤鍒頒簡 java.util.Locale 榪欎釜綾伙紝榪欎釜綾諱簡闈㈠畾涔変簡寰堝闈欐佸彉閲忥紝鐩存帴鎷胯繃鏉ョ敤灝?/span> OK 錛屾垜浠妸鏃跺尯璁劇疆涓?/span> Locale.SIMPLIFIED_CHINESE 錛屽彧鐪嬪悕瀛楋紝榪欎釜闈欐佸彉閲忕殑鎰忎箟宸茬粡寰堟竻妤氫簡銆?/span>
聽
鎺ヤ笅鏉ユ垜浠嬌鐢ㄨ繖涓?/span> SimpleDateFormat 鎶婂綋鍓嶆椂闂存牸寮忓寲涓轟竴涓涓嬫牸寮忕殑鏃墮棿瀛楃涓測?/span> XXXX 騫?/span> XX 鏈?/span> XX 鏃?/span> _XX 鏃?/span> XX 鍒?/span> XX 縐掆濓紝浠ｇ爜錛?/span>
sdf.applyPattern("yyyy騫碝M鏈坉d鏃HH鏃秏m鍒唖s縐?);
String timeStr = sdf.format(new Date());
聽
鑾峰彇鏃墮棿鏍煎紡鐨勫嚱鏁版槸 format 錛岃繖涓嚱鏁扮殑鍙傛暟鏄?/span> java.util.Date 瀵硅薄錛岃繖涓病鏈変粈涔堣姳澶淬?/span>
瑕佽鏄庝竴涓嬬殑鏄繖涓?/span> pattern 錛屾墍璋撶殑妯″紡銆傝繖閲岋紝 yyyy,MM,dd 絳夛紝榪欏氨鏄ā寮忋?/span>
鎴戜滑鍙互鍦?/span> SimpleDateFormat 鐨勬瀯閫犲嚱鏁頒腑鎸囧畾妯″紡錛屾瘮濡?/span>
SimpleDateFormat sdf = new SimpleDateFormat(" yyyy-MM-dd ",Locale.SIMPLIFIED_CHINESE);
涔熷彲浠ヨ幏鍙栨椂闂存牸寮忕殑鏃跺欎嬌鐢╝pplyPattern鍑芥暟涓存椂鎸囧畾錛屼笂闈㈢殑渚嬪瓙灝辨槸榪欐牱銆?
浠涔堝瓧絎︿唬琛ㄤ粈涔堬紝榪欐槸 j2se 綰﹀畾濂界殑錛岃緗ā寮忕殑鏃跺欙紝鎴戜滑鍙互浣跨敤綰﹀畾濂界殑瀛楃鍔犱笂浠諱綍鎴戜滑鎯寵鐨勫瓧絎︿覆銆?/span>
j2se 瀵瑰瓧絎︽墍浠ｈ〃鐨勬ā寮忕殑綰﹀畾鍒楄〃濡備笅錛?/span>
聽
聽
Letter
Date or Time Component
Presentation
G
Era designator
Text
y
Year
Year
M
Month in year
Month
w
Week in year
Number
W
Week in month
Number
D
Day in year
Number
d
Day in month
Number
F
Day of week in month
Number
E
Day in week
Text
a
Am/pm marker
Text聽
H
Hour in day (0-23)
Number
k
Hour in day (1-24)
Number
K
Hour in am/pm (0-11)聽
Number
h聽聽
Hour in am/pm (1-12)聽
Number
m聽聽
Minute in hour聽
Number
s聽聽
Second in minute聽
Number
S聽聽
Millisecond聽
Number聽聽
z聽聽
Time zone聽聽
General time zone聽
Z聽聽
Time zone聽
RFC 822 time zone聽
]]>
R/3搴旂敤杞綋閲囨ā緇勫寲緇撴瀯銆傚畠浠棦鍙互鍗曠嫭浣跨敤錛屼篃鍙互鍜屽叾瀹冭В鍐蟲柟妗堢浉緇撳悎銆備粠嫻佺▼瀵煎悜鐨勮搴﹁岃█錛屽悇搴旂敤杞綋闂寸殑鏁村悎紼嬪害瓚婇珮錛屽畠浠甫鏉ョ殑濂藉灝辮秺澶氥?span lang="EN-US">
FI 璐㈠姟浼氳 闆嗕腑鍏徃鏈夊叧浼氳鐨勬墍鏈夎祫鏂欙紝鎻愪緵瀹屾暣鐨勬枃鐚拰鍏ㄩ潰鐨勮祫璁紝鍚屾椂浣滀負浼佷笟瀹炶鎺у埗鍜岃鍒掔殑鏈鏂板熀紜銆?span lang="EN-US">
TR 璐㈠姟綆＄悊 鏄竴涓珮鏁堢巼璐㈠姟綆＄悊瀹屾暣瑙ｅ喅鏂規錛岀‘淇濆叕鍙稿湪涓栫晫鑼冨洿鐨勫懆杞紝瀵硅儲鍔¤祫浜х粨鏋勫疄琛岀泩鍒╁寲緇勫悎錛屽茍闄愬埗椋庨櫓銆?span lang="EN-US">
CO 綆＄悊浼氳 鏄叕鍙哥鐞嗙郴緇熶腑瑙勫垝涓庢帶鍒跺伐鍏風殑瀹屾暣浣撶郴錛屽叿鏈夌粺涓鐨勬姤琛ㄧ郴緇燂紝鍗忚皟鍏徃鍐呴儴澶勭悊涓氬姟鐨勫唴瀹瑰拰榪囩▼銆?span lang="EN-US">
EC 浼佷笟鎺у埗 鏍規嵁鐗瑰埗鐨勭鐞嗚祫璁紝榪炵畫鐩戞帶鍏徃鐨勬垚鍔熷洜绱犲拰涓氱嘩鎸囨爣銆?span lang="EN-US">
IM鎶曡祫綆＄悊 鎻愪緵鎶曡祫鎵嬫鍜屼笓妗堬紝浠庤鍒掑埌緇撶畻鐨勭患鍚堟х鐞嗗拰澶勭悊錛屽寘鎷姇璧勫墠鍒嗘瀽鍜屾姌鏃фā鎷熴?span lang="EN-US">
PP 鐢熶駭璁″垝 鎻愪緵鍚勭鍒墮犵被鍨嬬殑鍏ㄩ潰澶勭悊錛氫粠閲嶈鎬х敓浜с佽鍒剁敓浜с佽瑁呯敓浜э紝鍔犲伐鍒墮犮佹壒閲忓強璁㈠瓨鐢熶駭鐩磋嚦榪囩▼鐢熶駭錛屽叿鏈夋墿灞?span lang="EN-US">MPR鈪＄殑鍔熻兘銆傚彟澶栬繕鍙互閫夋嫨榪炴帴PDC銆佸埗紼嬫帶鍒剁郴緇燂紝CAD鍜?span lang="EN-US">PDM銆?span lang="EN-US">
MM 鐗╂枡綆＄悊 浠ュ伐浣滄祦紼嬩負瀵煎悜鐨勫鐞嗗姛鑳藉鎵鏈夐噰璐鐞嗘渶浣沖寲錛屽彲鑷姩璇勪及渚涘簲鍟嗭紝閫忚繃綺劇‘鐨勫簱瀛樺拰浠撳偍綆＄悊闄嶄綆閲囪喘鍜屼粨鍌ㄦ垚鏈紝騫朵笌鍙戠エ鏍告煡鐩告暣鍚堛?span lang="EN-US">
PM 宸ュ巶緇存姢 鎻愪緵瀵瑰畾鏈熺淮鎶ゃ佹鏌ャ佽楁崯緇存姢涓庢湇鍔＄鐞嗙殑瑙勫垝銆佹帶鍒跺拰澶勭悊錛屼互紜繚鍚勬搷浣滄х郴緇熺殑鍙敤鎬с?span lang="EN-US">
QM 鍝佽川綆＄悊 鐩戞帶銆佽緭鍏ュ拰綆＄悊鏁翠釜渚涘簲閾句笌鍝佽川淇濊瘉鐩稿叧鐨勫悇綾誨鐞嗐佸崗璋冩鏌ュ鐞嗐佸惎鍔ㄦ牎姝ｆ帾鏂姐佷互鍙婁笌瀹為獙瀹よ祫璁郴緇熸暣鍚堛?span lang="EN-US">
PS 涓撴綆＄悊 鍗忚皟鍜屾帶鍒朵笓妗堢殑鍚勪釜闃舵錛岀洿鎺ヤ笌閲囪喘鍙婃帶鍒跺悎浣滐紝浠庢姤浠楓佽璁″埌鎵瑰噯浠ュ強璧勬簮綆＄悊涓庣粨綆椼?span lang="EN-US">
SD 閿鍞笌鍒嗛攢 縐瀬鏀彺閿鍞拰鍒嗛攢媧誨姩錛屽叿鏈夊嚭鑹茬殑瀹氫環銆佽鍗曞揩閫熷鐞嗐佹寜鏃朵氦璐э紝浜や簰寮忓灞傛鍙彉閰嶇疆鍔熻兘錛屽茍鐩存帴涓庣泩鍒╁垎鏋愬拰鐢熶駭璁″垝妯＄粍榪炴帴銆?span lang="EN-US">
HR 浜哄姏璧勬簮綆＄悊 閲囩敤娑電洊鎵鏈変漢鍛樼鐞嗕換鍔″拰甯姪綆鍖栦笌鍔犻熷鐞嗙殑鏁村悎寮忓簲鐢ㄧ▼寮忥紝涓哄叕鍙告彁渚涗漢鍔涜祫婧愯鍒掑拰綆＄悊瑙ｅ喅鏂規銆?span lang="EN-US">
寮鏀懼紡璧勮浠撳偍 鍖呮嫭鏅鴻兘璧勮緋葷粺錛岃緋葷粺鎶婃潵鑷?span lang="EN-US">R/3搴旂敤紼嬪紡鍜屽閮ㄦ潵婧愮殑鏁版嵁褰掔撼鎴愪負涓葷浜哄憳璧勮錛屼笉浠呮敮鎻翠嬌鐢ㄨ呴儴闂ㄥ喅絳栧拰鎺у埗錛屽悓鏃朵篃鏀彺瀵規垚鍔熷叿鏈夊叧閿綔鐢ㄧ殑楂橀樁鎺у埗鍜岀洃鎺с?span lang="EN-US">
R/3錛嶅畾鍒跺寲絳栫暐璧勮綆＄悊
淇濇寔绔炰簤棰嗗厛鍦頒綅绔禆浜庡叕鍙稿緩绔嬫湁鏁堝茍灝藉彲鑳戒互瀹㈡埛涓哄鍚戠殑浼佷笟嫻佺▼緇撴瀯鐨勮兘鍔涖傝繖灝遍渶瑕佸叿澶囧彲鏈鏈夋晥鏀彺浠婂悗浼佷笟嫻佺▼鐨勮祫璁鐞嗙郴緇熴?/span>
R/3緋葷粺騫墮潪鍙槸杞歡錛屽畠鏄竴縐嶇瓥鐣ユцВ鍐蟲柟妗堛?span lang="EN-US">
R/3緋葷粺錛嶄紒涓氭祦紼嬬殑鎬濈淮涓庤鍔ㄣ?span lang="EN-US">
鍏徃蹇呴』榪愮敤鍔ㄦ佹垬鐣ュ鐬伅涓囧彉鐨勬寫鎴樹綔鍑哄弽搴斻傝繀閫熼傚簲瀹㈡埛鏂伴渶姹傚拰甯傚満鏂板晢鏈虹殑鑳藉姏錛屾槸璧㈠緱绔炰簤鑳滃埄鐨勫喅瀹氭у洜绱犮傛縐嶉傚簲鍔涢渶瑕佷竴涓姛鑳藉己澶с佸紑鏀懼紡鐨勫熀紜緇撴瀯錛屽畠鍙拡瀵圭洰鍓嶇殑浼佷笟嫻佺▼鎻愪緵鏈浣沖寲鏀彺錛屽茍鑳界伒媧婚傚簲鍙樺寲涓庡彂灞曘?span lang="EN-US">R/3緋葷粺灝辨槸搴斾粯榪欎簺鎸戞垬鐨勬渶浣寵В絳旓紝瀹冩槸涓諱粠寮忔灦鏋勪笂鏈鏅亶鐨勬爣鍑嗗晢涓氬簲鐢ㄨ蔣浠躲?/span>
SAP R/3緋葷粺鍏峰浠ヤ笅鍔熻兘鍜屼富瑕佺壒鐐?span lang="EN-US">:
鍔熻兘鎬э細R/3浠ユā鍧楀寲鐨勫艦寮忔彁渚涗簡涓鏁村涓氬姟鎺柦,鍏朵腑鐨勬ā鍧楀泭鎷簡鍏ㄩ儴鎵闇瑕佺殑涓氬姟鍔熻兘騫舵妸鐢ㄦ埛涓庢妧鏈у簲鐢ㄨ蔣浠剁浉鑱旇屽艦鎴愪竴涓繪嫭鐨勭郴緇燂紝鐢ㄤ簬鍏徃鎴栦紒涓氭垬鐣ヤ笂鍜岃繍鐢ㄤ笂鐨勭鐞嗐?span lang="EN-US">
闆嗘垚鍖?span lang="EN-US">: R/3鎶婇昏緫涓婅仈鐨勯儴鍒嗚繛鎺ュ湪涓璧楓傞噸澶嶅伐浣滃拰澶氫綑鏁版嵁琚畬鍏ㄥ彇娑堬紝瑙勭▼琚紭鍖栵紝闆嗘垚鍖栫殑涓氬姟澶勭悊鍙栦唬浜嗕紶緇熺殑浜哄伐鎿嶄綔銆?span lang="EN-US">
鐏墊椿鎬э細R/3緋葷粺涓柟渚跨殑瑁佸壀鏂規硶浣夸箣鍏鋒湁鐏墊椿鐨勯傚簲鎬э紝浠庤岃兘婊¤凍鍚勭鐢ㄦ埛鐨勯渶瑕佸拰鐗瑰畾琛屼笟鐨勮姹傘?span lang="EN-US">R/3榪橀厤澶囨湁閫傚綋鐨勭晫闈㈡潵闆嗘垚鐢ㄦ埛鑷繁鐨勮蔣浠舵垨澶栨潵鐨勮蔣浠躲?span lang="EN-US">
寮鏀炬э細R/3鐨勪綋緋葷粨鏋勭鍚堝浗闄呭叕璁ょ殑鏍囧噯錛屼嬌瀹㈡埛寰椾互紿佺牬涓撶敤紜歡騫沖彴鍙婁笓鐢ㄧ郴緇熸妧鏈殑灞闄愩傚悓鏃訛紝SAP鎻愪緵鐨勫紑鏀炬ф帴鍙ｏ紝鍙互鏂逛究鍦板皢絎笁鏂硅蔣浠朵駭鍝佹湁鏁堝湴闆嗘垚鍒?span lang="EN-US">R/3緋葷粺涓潵銆?span lang="EN-US">
鐢ㄦ埛鍙嬪ソ錛?/span>鍥炬爣涓庡浘褰㈢鍙風畝鍖栦簡浜烘満浜や簰鏃剁殑鎿嶄綔銆傜粺涓璁捐鐨勭敤鎴風晫闈㈢‘淇濅簡宸ヤ綔浜哄憳鑳藉榪愮敤鍚屾牱鐨勭啛鎮夌殑鎶鏈粠浜嬩笉閫氱殑宸ヤ綔銆?/span>
妯″潡鍖栵細R/3鐨勬ā鍧楃粨鏋勪嬌鐢ㄦ埛鏃㈠彲浠ヤ竴涓竴涓殑閫夌敤鏂扮殑瀹炵敤紼嬪簭錛屼篃鍙互瀹屽叏杞叆涓涓柊鐨勭粍緇囩粨鏋勪綋緋匯?span lang="EN-US">
鍙潬錛?/span>浣滀負鐢ㄦ埛鐨勫晢涓氫紮浼?span lang="EN-US">SAP濮嬬粓涓嶆柇鍦頒負闆嗘垚鍖栬蔣浠剁殑璐ㄩ噺璁劇珛瓚婃潵瓚婂鐨勫浗闄呮爣鍑嗐?span lang="EN-US">
浣庢垚鏈珮鏁堢泭錛?/span>淇℃伅澶勭悊鏄彇寰楃珵浜変紭鍔跨殑瑕佺偣涔嬩竴銆傚綋绔炰簤鍔犲墽鏃訛紝浼佷笟蹇呴』鏇村姞鍔姏鍦拌幏鍙栧叾甯傚満鍗犳湁閲忋傝繖灝辮浣跨敤楂樺害闆嗘垚鍖栫殑鏁版嵁澶勭悊杞歡錛岃?span lang="EN-US">R/3姝ｆ槸榪欑杞歡鐨勪紭縐鍏歌寖銆?span lang="EN-US">
鍥介檯閫傜敤錛?/span>R/3鏀寔澶氱璇█錛岃屼笖鏄負璺ㄥ浗鐣屾搷浣滆岃璁＄殑銆?span lang="EN-US">R/3鍙互鐏墊椿鍦伴傚簲鍚勫浗鐨勮揣甯佸強紼庣墿瑕佹眰銆?span lang="EN-US">
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4.濡備綍鐢ㄦ祻瑙堝櫒瑙傜湅杈撳嚭鑷沖懡浠よ妯″紡鐨勭粨鏋滐紵
5.濡備綍鎶婁竴涓猨ava applet鏀懼埌緗戦〉涓婏紵
6.public class聽聽cjc extends java.applet.Applet{
public static void main(String args[])
{
cjc mf=new cjc();
mf.init();
}
public void init(){
绱姞 绱姞鏁板瓧 = new 绱姞(10);
System.out.println(绱姞鏁板瓧.鎬誨拰());
}
}
class 绱姞{
int in=;
public 绱姞(int in){
this.in=in;
}
public int 鎬誨拰(){
int i,sum;
sum=0;for(i=1;i<=in;i++)聽聽sum+=i;
return sum;
}
}
濡傛灉浣犳兂瑕佽綆梐鍔犲埌b鐨勬誨拰錛屽浣曚慨鏀癸紵
棰樼洰錛?br />1. 涓嬮潰鍝釜鏄鐨勶紵
A.IloveJava聽聽聽聽 B.$20聽聽 C.piggy@msl聽聽聽聽D.Hello_worle聽聽 E.2two聽聽聽聽 F.sum+of+money
2.涓嬮潰鍙兘浜х敓浠涔堢粨鏋滐紵濡傛灉鏈夐敊濡備綍鏀規錛?br />int i=5;
int j=2;
k=i*j;
3.涓嬮潰鍙兘浜х敓浠涔堢粨鏋滐紵濡傛灉鏈夐敊濡備綍鏀規錛?br />float f=2.5;
f=f*2;
4.answer鍙橀噺鐨勬暟鎹被鍨嬪簲璇ユ槸錛?br />byte b=1;聽聽聽聽 char c=2;聽聽聽聽short s=3;聽聽聽聽int i=4;聽聽聽聽 float f=5.0f;
answer=b*c*s*i*f;
5.濡傛灉鎴戞兂瑕佹妸[2*2.5]鐨勭粨鏋滅敤涓涓猣loat鍙橀噺瀛樻斁鐨勮瘽錛岀▼搴忓簲璇ュ浣曠紪鍐欙紵
棰樼洰錛?br />1.璇烽棶鏈鍚巃,b鍙橀噺鐨勬暟鍊兼槸錛?br />int x,a=5,b3;聽聽聽聽聽聽x=a++ + b--;
A.x=8,a=5,b=3;聽聽聽聽B.x=8,a=6,b=2;聽聽聽聽 C.x=7,a=5,b=2;聽聽聽聽 D.x=9,a=6,b=3;
2.涓嬪垪琛ㄨ揪寮忥紝鍝嚑涓槸姝ｇ‘鐨勶紵
A.int x=6;x=!x;聽聽聽聽 B.int x=6;x=~x;聽聽 C.boolean b=true; b=!b;聽聽聽聽D. boolean b=true; b=!b;
3.涓嬪垪琛ㄨ揪寮忥紝鍝嚑涓獂鍙橀噺鐨勫兼渶鍚庝細鏄鏁幫紵
A.int x=-1;x=x>>>5;聽聽聽聽B.int x=-1;x=x>>>32;聽聽聽聽 C.byte x=-1;x=x>>>5;聽聽
D.int x=-1;x=x>>5;
4.涓嬪垪鐨勫彉閲弜,y錛屽摢鍑犱釜榪愮畻瀹岋紝緇撴灉浣縯rue?
A.int i=100;float f=500.0f;i==f?聽聽聽聽 B.int i=40;float f=500.0f;i>f?
C.int i=20;float f=30.0f;i<f?聽聽聽聽聽聽聽聽聽聽 D.int i=55;float f=33.3f;i!=f?
5.涓嬪垪鐨勭粨鏋滄槸錛?br />int i=100;聽聽聽聽 i=((i++>>35) << 32)%10;
A.0聽聽聽聽 B.1聽聽聽聽 C.2聽聽聽聽聽聽D.3
棰樼洰錛?
1.if(score >=90 && score <=100)
finalScore="鐢?;
else if (score >=80 && score <=90)
finalScore="涔?";
else if (score >=70 && score <=80)
finalScore="涓?";
else if (score >=60 && score <=70)
finalScore="涓?";
else
finalScore="鎴?";
鐢ㄦ洿綆鍗曠殑鏂規硶鍐欏嚭鏉ワ紙涓嶈兘鐢ㄩ昏緫琛ㄨ揪寮忥級
2.鍐欎竴涓▼搴忥紝瀹冭兘澶熻綆梐鍔犲埌b鐨勬誨拰錛屽叾涓璦涓嶄竴瀹氭瘮b灝忋?br />3.鍐欎竴涓▼搴忥紝瀹冭兘澶熸妸1鍒?00涓殑璐ㄦ暟鏄劇ず鍑烘潵銆?br />4.鍐欎竴涓▼搴忥紝鑳藉浠庝簲涓暟瀛椾腑璺沖嚭鏈澶у箋?br />5.閭ｄ簺寰幆璇彞鐨勫啓娉曟槸姝ｇ‘鐨勶紵
A.while (int i<5){ i++; System.out.println(i);}
B.int i=5; while(i)聽聽System.out.println(i);
C.int j=1; for (int k=1;j+k != 10;j++,k++)聽聽聽聽System.out.println("j="+j+"k="+k);
D.int j=1;聽聽do { System.out.println(j++);聽聽 if(j==5) contine loop1;}聽聽 while (j<20);
棰樼洰錛?br />1.鍝簺鏄悎娉曠殑閲嶈澆錛?br />public class Q1{聽聽聽聽聽聽public void method(int i){ };聽聽聽聽 }
A.private void method(int i){ }聽聽聽聽聽聽聽聽聽聽 B.public void method(int k){ }
C.public int method(int i){ }聽聽聽聽聽聽聽聽聽聽聽聽聽聽 D.private float method(float f){ }
E.public String method(int i,int j){ }
2. 鍦≦2_2綾諱腑錛屽摢浜涙槸鍚堟硶鐨勮鐩栵紵
public class Q2_1{
public void method(int i){ };
}
class Q2_2 extends Q2_1{
}
A.public void method(int i){ }聽聽聽聽聽聽聽聽聽聽聽聽聽聽B.private void method(int j){ }
C.public int method(int i){ }聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽D.public float method(float f){ }
E.private String method(String s){ }
3.Q4_2綾昏繍琛岀殑緇撴灉鏄粈涔堬紵涓轟粈涔堬紵鑻ユ妸Q4_2綾葷殑絎?琛屾敼鎴?Q4_1 q2=new Q4_2();聽聽緇撴灉鏄灝戯紵涓轟粈涔堬紵鑻ユ妸絎?1琛屾敼鎴?((Q4_2) q2).method(); 緇撴灉鏄灝戯紵涓轟粈涔堬紵
01:聽聽聽聽聽聽聽聽public class Q4_1{
02:聽聽聽聽聽聽聽聽public void method(int i){
03:聽聽聽聽聽聽聽聽System.out.println(10);
04:}
05:}
06:聽聽聽聽聽聽聽聽public class Q4_2 extends Q4_1{
07:聽聽聽聽聽聽聽聽public static void main(String args{}){
08:聽聽聽聽聽聽聽聽Q4_1 q1=new Q4_1();聽聽聽聽聽聽
09:聽聽聽聽聽聽聽聽Q4_2 q2=new Q4_2();
010:聽聽聽聽聽聽q1.method(1);聽聽聽聽
011錛毬犅?q2.method(2);
012:}
013:聽聽聽聽聽聽public void method(int k){
014:聽聽聽聽聽聽System.out.println(20);
015:}
4.鍦≦9_1綾諱腑搴旇鏈夊摢浜涙瀯閫犲嚱鏁幫紵
public class Q9_2 extends Q9_1{
public Q9_2(int i){ }
public Q9_2(int i,float f){ super(i,f)}
}
A.public Q9_1(){ }聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽B.public Q9_1(int k){ }
C.public Q9_1(int i,float f){ }聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽D.public Q9_1(float f){ }
棰樼洰錛?br />1.閿欏湪鍝噷錛?br />public class text{
public static void main(String args[]){
A a=new A();
B b=(B) a;
C c=new A();
D d=(D) c;
}
}
class A{}
class B extends A {}
class C extends B {}
class D extends A {}
2.鑻ヤ竴涓娊璞＄被縐嶆墍鏈夌殑鏂規硶閮芥槸鎶借薄鏂規硶鏃訛紝鏄笉鏄彲浠ユ敼涓烘帴鍙ｏ紵
1.涓や釜瀵硅薄浣滄瘮杈冭繍綆楁椂錛屼嬌鐢?=榪愮畻絎﹀拰equals鏂規硶鏈変粈涔堝樊鍒紵
2.濡傛灉璁╀竴涓被鏈夊鍒惰兘鍔涳紝搴旇鐢ㄩ偅涓帴鍙ｏ紵
3.濡備綍鎶婁竴涓璞＄敤瀛楃涓茶〃紺哄嚭鏉ワ紵
4.璁捐涓涓笁瑙掑艦鍜岀煩褰㈢被錛屼慨鏀瑰畠浠殑equals鏂規硶錛屽鏋滀袱涓璞￠潰縐浉鍚岋紝鍒檈quals鏂規硶榪斿洖true
1.濡傛灉鏈変釜int[0]鍨嬬殑鏁扮粍x,浣犺寰桝銆丅涓ょ寰幆鍐欐硶錛屽摢涓縐嶆瘮杈冨ソ錛熶負浠涔堬紵
A.for(int i=1;i<10;i++)聽聽聽聽聽聽聽聽聽聽聽聽B.for(int i=0;i<x.length;i++)
2.瀵硅薄鍐呭瓨鍥炴敹鐨勯『搴忓拰浠涔堟湁鍏籌紵
3.鍙笉鍙互鎺у埗浣曟椂鍚姩GC?
try{
FileInputStream f=FileInputStream("test.txt");
System.out.println("Open file successed!");
}
catch(FileNotException fe){
System.out.println("File not found!");
}
catch(IOException ie){
System.out.println("IO聽聽exception!");
}
catch(Exception e){
System.out.println("General聽聽Exception!");
}
finally{
System.out.println("Do finally block!");
}
System.out.println("out of try block!");
1.濡傛灉絎?琛屼唬鐮佸湪榪愯鏃跺嚭鐜板紓甯革紝紼嬪簭浼氳緭鍑轟粈涔堢粨鏋滐紵
A.Open file successed!聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽B.File not found!
C.IO聽聽exception!聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽D.General聽聽Exception!
E.Do finally block!聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽F.out of try block!
2.鎺ョ涓棰橈紝.濡傛灉絎?琛屼唬鐮佸湪榪愯鏃舵病鏈夊嚭鐜板紓甯革紝紼嬪簭浼氳緭鍑轟粈涔堢粨鏋滐紵
3.鎺ョ涓棰橈紝.濡傛灉浠ｇ爜鍦ㄨ繍琛屾椂鍑虹幇OutOfMemoryError寮傚父錛岀▼搴忎細杈撳嚭浠涔堢粨鏋滐紵
4.f鏄釜File綾誨璞★紝瀹冩湁涓柟娉昬xists,鐢ㄦ潵媯鏌ユ枃浠舵槸鍚﹀瓨鍦ㄣ備笅闈㈤偅涓孌典唬鐮佹渶鍚堥傦紵
A.Exception e=new IOException("File not found!");
if(!exists)
throw e;
B.if(!exists)
throw new IOException("File"+f.getName()+" not found!");
C.if(!exists)
throw new IOException;
D..if(!exists)
throw "File not found!";
E.if(!exists)
throw new IOException();
1.璇存槑Frame浣跨敤pack浣晄etSize榪欎袱涓柟娉曠殑宸埆銆?br />2.浣跨敤GridBagLayout鏃訛紝闇瑕佽緗偅鍑犵灞炴с?br />3.鐢℅ridBagLayout鏉ユā鎷烞orderLayout.
4.鐢╦ava紼嬪璁捐鍑哄涓嬬殑GUI鐣岄潰銆傦紙緇勫緩鍙互璁劇敤Button綾伙級
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new String(file.getFileName().getBytes(System.getProperty("file.encoding")), "UTF-8")
榪欓噷鐨凷ystem.getProperty("file.encoding")鏄幏鍙栫郴緇熼粯璁ょ殑緙栫爜銆傛祴璇曞湪鏃ユ枃緋葷粺涓嬩篃鏄彲琛岀殑銆?br />
琛ュ厖涓涓猆TF-8鐨勮漿鎹㈡柟娉?br />
public聽static聽String聽toUtf8String(String聽s)聽
{聽2
聽聽StringBuffer聽sb聽=聽new聽StringBuffer();聽3
聽聽for聽(int聽i聽=聽0;聽i聽<聽s.length();聽i++)聽{聽4
聽聽聽char聽c聽=聽s.charAt(i);聽5
聽聽聽if聽(c聽>=聽0聽&&聽c聽<=聽255)聽{聽6
聽聽聽聽sb.append(c);聽7
聽聽聽}聽else聽{聽8
聽聽聽聽byte[]聽b;聽9
聽聽聽聽try聽{10
聽聽聽聽聽b聽=聽Character.toString(c).getBytes("utf-8");11
聽聽聽聽}聽catch聽(Exception聽ex)聽{12
聽聽聽聽聽System.out.println(ex);13
聽聽聽聽聽b聽=聽new聽byte[0];14
聽聽聽聽}15
聽聽聽聽for聽(int聽j聽=聽0;聽j聽<聽b.length;聽j++)聽{16
聽聽聽聽聽int聽k聽=聽b[j];17
聽聽聽聽聽if聽(k聽<聽0)18
聽聽聽聽聽聽k聽+=聽256;19
聽聽聽聽聽sb.append("%"聽+聽Integer.toHexString(k).toUpperCase());20
聽聽聽聽}21
聽聽聽}22
聽聽}23
聽聽return聽sb.toString();24
聽}]]>
涓嶇煡閬撴槸鍚︽湁鏇村ソ鐨勫涔犺祫鏂欏憿錛?br />
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