锘??xml version="1.0" encoding="utf-8" standalone="yes"?> SQL2005鐨勭敤錛?/span>Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); Connection ct=DriverManager.getConnection("jdbc:sqlserver://127.0.0.1:1433;d atabaseName=stdb","sa","sa"); SQL2000鐨勭敤錛?/span>Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
SQL2005闇瑕佷竴涓猨ar鍖咃細http://dl.dbank.com/c02tkdkmmy
鍔犺澆椹卞姩涓庡緱鍒拌繛鎺ョ殑鍖哄埆錛?br />
絎簩姝ワ紝鐪嬩綘鐨剆ql 2005鏄惁寮鍚簡榪滅▼璁塊棶鏉冮檺錛屽叿浣撹緗涓嬶細
榪涘叆“Microsoft SQL Server 2005 ”——“閰嶇疆宸ュ叿”——“SQL Server 澶栧洿搴旂敤閰嶇疆鍣?#8221;
鍦ㄨ繘鍏?#8220;MSSQLSERVER"——“DATABASE" Engine”——“榪滅▼榪炴帴”
閫夋嫨“鏈湴榪炴帴鍜岃繙紼嬭繛鎺?R)"——”鍚屾椂浣跨敤tcp/ip鍜宯amed pipes(B)"
鏈鍚庨噸鍚痵ql server 2005
]]>
# Java鐨?/span>鏂規(guī)硶閲嶈澆鏄寚涓涓被涓湁澶氫釜鏂規(guī)硶鍏鋒湁鐩稿悓鐨勫悕瀛楋紝浣嗗弬鏁頒笉鍚屻?/span>
璋冪敤鏂規(guī)硶鏃墮氳繃浼犻掔粰瀹冧滑鐨勪笉鍚屼釜鏁板拰綾誨瀷鐨勫弬鏁版潵鍖哄垎鍏蜂綋浣跨敤鍝釜鏂規(guī)硶, 榪?/span>
灝辨槸澶氭佹с?/span>
1. 鏂規(guī)硶鍚嶇浉鍚?/span>
2. 鏂規(guī)硶鐨勫弬鏁扮被鍨嬶紝涓暟錛岄『搴忚嚦灝戞湁涓欏逛笉鍚?/span>
3. 鏂規(guī)硶榪斿洖綾誨瀷鍙互涓嶅悓
4. 鏂規(guī)硶鐨勪慨楗扮鍙互涓嶅悓
鏂規(guī)硶瑕嗙洊錛堥噸鍐欙級
#鍦?/span>Java涓紝瀛愮被鍙戶鎵跨埗綾諱腑鐨勬柟娉曪紝鑰屼笉闇瑕侀噸鏂扮紪鍐欑浉鍚岀殑鏂規(guī)硶銆備絾鏈夋椂瀛愮被騫朵笉鎯沖師灝佷笉鍔ㄥ湴緇ф壙鐖剁被鐨勬柟娉曪紝鑰屾槸鎯充綔涓瀹氱殑淇敼錛岃繖灝遍渶瑕侀噰鐢ㄦ柟娉曠殑閲嶅啓銆?/span>
1. 鏂規(guī)硶瑕嗙洊灝辨槸瀛愮被鏈変竴涓柟娉曞拰鐖剁被鐨勬煇涓柟娉曠殑鍚嶇О銆?span style="color:red">榪斿洖綾誨瀷銆?span style="color:red">鍙傛暟涓鏍鳳紝閭d箞鎴戜滑灝辮瀛愮被鐨勮繖涓柟娉曡鐩栦簡鐖剁被鐨勯偅涓柟娉曘?/span>
2. 瀛愮被鐨勬柟娉曠殑榪斿洖綾誨瀷錛屽弬鏁幫紝鏂規(guī)硶鍚嶇О瑕佸拰鐖剁被鐨勫畬鍏ㄤ竴鑷達紝鍚﹀垯緙栬瘧鍑洪敊銆?/span>
3. 瀛愮被鏂規(guī)硶涓嶈兘緙╁皬鐖剁被鏂規(guī)硶鐨勮闂潈闄愶紙瀛愮被鏂規(guī)硶鐨勪慨楗扮瀹氫箟寰楄姣旂埗綾繪柟娉曠殑淇グ絎︾殑璁塊棶鑼冨洿澶э級
1.綾諱綋灞炴ч儴鍒嗗畾涔夌殑鍙橀噺縐頒負鎴愬憳鍙橀噺錛涙柟娉曚綋鍐呭畾涔夌殑鍙橀噺縐頒負灞閮ㄥ彉閲忋?/span>
2.鎴愬憳鍙橀噺鍦ㄦ暣涓被鍐呴兘鏈夋晥錛涘眬閮ㄥ彉閲忓彧鍦ㄥ畾涔夊畠鐨勬柟娉曚綋鍐呮湁鏁堛?/span>
3.濡傛灉鎴愬憳鍙橀噺鍜屽眬閮ㄥ彉閲忕殑鍚嶅瓧鐩稿悓錛屽垯鍦ㄦ柟娉曚綋閲屾垚鍛樺彉閲忓皢琚殣钘忋?/span>
Public class Person{
int age; //鎴愬憳鍙橀噺
String name; //鎴愬憳鍙橀噺
public Person(int age,String name)
{
this.age=age; //this.age涓殑age涓烘垚鍛樺彉閲忥紝age涓哄眬閮ㄥ彉閲?/span>
this.name=name;
}
瀹炰緥鍙橀噺鍜岀被鍙橀噺錛堥潤鎬佸彉閲忥級浠ュ強綾繪柟娉?/span>
1. 瀹炰緥鍙橀噺+綾誨彉閲?/span>=鎴愬憳鍙橀噺銆?/span>
2. 綾誨彉閲忓0鏄庢椂瑕佸甫鏈?#8220;static”鍏抽敭瀛椼?/span>
3. 瀹炰緥鍙橀噺浣跨敤鏃舵槸琚璞¤皟鐢ㄧ殑錛屽嵆“瀵硅薄鍚?/span>.瀹炰緥鍙橀噺鍚?#8221;錛?/span>
綾誨彉閲忎嬌鐢ㄦ椂琚被璋冪敤錛堜篃鍙互鏄璞★級錛屽嵆“綾誨悕.綾誨彉閲?#8221;錛?/span> 瀵硅薄鍚?/span>. 綾誨彉閲忥級銆?/span>
4. 鏌愪釜瀵硅薄鏇存敼鍏跺疄渚嬪彉閲忥紝鍏朵粬瀵硅薄涓嶅彈褰卞搷錛涚被鍙橀噺鏀瑰彉鏃訛紝鎵鏈夊璞$殑榪欎釜綾誨彉閲忛兘琚敼鍙樸?/span>
5. 瀹炰緥鏂規(guī)硶鏃㈣兘瀵圭被鍙橀噺鎿嶄綔錛岀敤鑳藉瀹炰緥鍙橀噺鎿嶄綔錛岃岀被鏂規(guī)硶鍙兘瀵圭被鍙橀噺榪涜鎿嶄綔銆?/span>
Public class Child{
int age;
String name;
static int total=0;
public void joinGame(){
System.out.println("鏈変竴涓皬瀛╁姞榪涙潵鍟?/span>");
total++;
}
}
public static void main(String []args)
{
Child ch1=new Child();
ch1.age=10;
ch1.name=”灝忓皬”;
System.out.println("鍏辨湁"+ch1.total); }
闈欐佷唬鐮佸潡static{...}
棣栧厛闈欐佷唬鐮佸潡static{...}鏄湪綾昏瑁呰澆鐨勬椂鍊欐墽琛岋紝涓斿彧鎵ц涓嬈★紱闈欐佷唬鐮佸潡鏄湪鍐呭瓨涓紑杈熺殑涓鍧楀叕鍏卞尯鍩燂紝綾葷殑澶氫釜瀹炰緥鍏變韓鐨勫尯鍩燂紝浠諱綍璇ョ被鐨勫疄渚嬪璇ュ尯鍩熺殑鎿嶄綔閮藉鎵鏈夋墍鏈夎綾葷殑瀹炰緥瀵硅鍖哄煙鐨勬搷浣滈兘鏄敓鏁堢殑銆?/span>
static浠g爜鍧椾富瑕佺敤鍦ㄦ兂鍦ㄧ被鍔犺澆鐨勬椂鍊欏氨鍒濆鍖栦竴浜涘唴瀹癸紝濡傦細鍒濆鍖栨暟鎹簱閾炬帴classforName("XXX"),
姣忓垱寤轟竴涓被鐨勫疄渚嬮兘鍘誨垵濮嬪寲瀹冪殑鎵鏈夊彉閲忔槸涔忓懗鐨勩傚鏋滀竴涓璞″湪琚垱寤烘椂灝卞畬鎴愪簡鎵鏈夌殑鍒濆宸ヤ綔錛屽皢鏄畝鍗曠殑鍜岀畝媧佺殑銆傚洜姝わ紝Java鍦ㄧ被閲屾彁渚涗簡涓涓壒孌婄殑鎴愬憳鍑芥暟錛屽彨鍋氭瀯閫犲嚱鏁幫紙Constructor錛夈?/span>
銆銆涓涓瀯閫犲嚱鏁版槸瀵硅薄琚垱寤烘椂鍒濆瀵硅薄鐨勬垚鍛樺嚱鏁般傚畠鍏鋒湁鍜屽畠鎵鍦ㄧ殑綾誨畬鍏ㄤ竴鏍風殑鍚嶅瓧銆備竴鏃﹀畾涔夊ソ涓涓瀯閫犲嚱鏁幫紝涓?/span>new榪愮畻絎︿竴璧蜂嬌鐢紝鍒涘緩瀵硅薄鏃跺氨浼氳嚜鍔ㄨ皟鐢ㄥ畠銆傛瀯閫犲嚱鏁版病鏈夎繑鍥炵被鍨嬶紝鍗充嬌鏄?/span>void綾誨瀷涔熸病鏈夈傝繖鏄洜涓轟竴涓被鐨勬瀯閫犲嚱鏁扮殑榪斿洖鍊肩殑綾誨瀷灝辨槸榪欎釜綾繪湰韜傛瀯閫犲嚱鏁扮殑浠誨姟鏄垵濮嬪寲涓涓璞$殑鍐呴儴鐘舵侊紝鎵浠ョ敤new鎿嶄綔絎﹀垱寤轟竴涓疄渚嬪悗錛岀珛鍒誨氨浼氬緱鍒頒竴涓竻妤氥佸彲鐢ㄧ殑瀵硅薄銆?/span>
鏋勯犳柟娉曟槸涓縐嶇壒孌婄殑鏂規(guī)硶錛屽叿鏈変互涓嬬壒鐐廣?/span>
錛?/span>1錛夋瀯閫犳柟娉曠殑鏂規(guī)硶鍚嶅繀欏諱笌綾誨悕鐩稿悓銆?/span>
錛?/span>2錛夋瀯閫犳柟娉曟病鏈夎繑鍥炵被鍨嬶紝涔熶笉鑳藉畾涔変負void錛屽湪鏂規(guī)硶鍚嶅墠闈笉澹版槑鏂規(guī)硶綾誨瀷銆?/span>
錛?/span>3錛夋瀯閫犳柟娉曠殑涓昏浣滅敤鏄畬鎴愬璞$殑鍒濆鍖栧伐浣滐紝瀹冭兘澶熸妸瀹氫箟瀵硅薄鏃剁殑鍙傛暟浼犵粰瀵硅薄鐨勫煙銆?/span>
錛?/span>4錛夋瀯閫犳柟娉曚笉鑳界敱緙栫▼浜哄憳璋冪敤錛岃岃緋葷粺璋冪敤銆?/span>
錛?/span>5錛?/span>鏋勯犲嚱鏁頒笉鑳借鐩存帴璋冪敤,蹇呴』閫氳繃new榪愮畻絎﹀湪鍒涘緩瀵硅薄鏃舵墠浼氳嚜鍔ㄨ皟鐢紙鍗沖湪new鐨勬椂鍊欏氨寮濮嬫墽琛屾瀯閫犲嚱鏁伴噷闈㈢殑璇彞錛夛紱鑰屼竴鑸殑鏂規(guī)硶鏄湪紼嬪簭鎵ц鍒板畠鐨勬椂鍊欒璋冪敤鐨?/span>.
錛?/span>6錛変竴涓被鍙互瀹氫箟澶氫釜鏋勯犳柟娉曪紝濡傛灉鍦ㄥ畾涔夌被鏃舵病鏈夊畾涔夋瀯閫犳柟娉曪紝鍒欑紪璇戠郴緇熶細鑷姩鎻掑叆涓涓棤鍙傛暟鐨勯粯璁ゆ瀯閫犲櫒錛岃繖涓瀯閫犲櫒涓嶆墽琛屼換浣曚唬鐮併?/span>
錛?/span>7錛夋瀯閫犳柟娉曞彲浠ラ噸杞斤紝浠ュ弬鏁扮殑涓暟錛岀被鍨嬶紝鎴栨帓鍒楅『搴忓尯鍒嗐?/span>
錛?/span>8錛?/span>褰撳畾涔変竴涓被鐨勬椂鍊欙紝濡傛灉紼嬪簭鍛樹笉鍒涘緩鏋勯犲嚱鏁幫紝鍒?/span>Java緙栬瘧鍣ㄥ氨浼氭彁渚涗竴涓粯璁ょ殑涓嶅甫鍙傛暟鐨勬瀯閫犲嚱鏁般傚垱寤哄璞℃椂緋葷粺灝變細鑷姩璋冪敤榪欎釜榛樿鐨勬瀯閫犲嚱鏁版潵鍒涘緩綾葷殑瀵硅薄銆傚
Public Class Person{
Int age;
String name;
//榛樿鐨勬瀯閫犲嚱鏁頒負(java緙栬緫鍣ㄤ細鑷姩鐢熸垚鐨?/span>)
Public Person(){
}
Person p=new Person();
p.age=10;
p.name=”寮犱笁”;
}
java 鏋勯犲嚱鏁扮殑鎵ц榪囩▼
綾誨垵濮嬪寲鏃舵瀯閫犲嚱鏁拌皟鐢ㄩ『搴忥細 public class Demo_1 { /** * @param args */ public static void main(String[] args){ new Money(); new Dollar(); new Rmb(); } } class Money{ public Money(){ System.out.println("Money is construct"); } } class Dollar{ public Dollar(){ System.out.println("Dollar is construct!"); } } class Rmb{ public Rmb(){ System.out.println("RMB is construct"); } } 杈撳嚭緇撴灉: Dollar is construct! RMB is construct
錛?/span>1錛夊垵濮嬪寲瀵硅薄鐨勫瓨鍌ㄧ┖闂翠負闆舵垨null鍊鹼紱
錛?/span>2錛夎皟鐢ㄧ埗綾繪瀯閫犲嚱鏁幫紱
錛?/span>3錛夋寜欏哄簭鍒嗗埆璋冪敤綾繪垚鍛樺彉閲忓拰瀹炰緥鎴愬憳鍙橀噺鐨勫垵濮嬪寲琛ㄨ揪寮忥紱
Money is construct