鈥滆彍鍗曟枃瀛椻濋噷鐨勫唴瀹逛慨鏀逛負(fù)鈥淛AVAC鈥濓紱
鈥滃懡浠も濋夋嫨瀹夎JDK鍚庣殑BIN鐩綍涓殑緙栬瘧紼嬪簭JAVAC.EXE錛屽鏋淛DK 瀹夎璺緞涓衡渃:\jdk鈥濓紝閭ｄ箞姝よ礬寰勪負(fù)鈥渃:\jdk\bin\javac.exe鈥濓紱
鈥滃弬鏁扳濋夋嫨鈥滄枃浠跺悕縐扳濓紝鍗蟲樉紺轟負(fù)鈥?(FileName)鈥濓紱
鈥滃垵濮嬬洰褰曗濋夋嫨鈥滄枃浠剁洰褰曗濓紝鏄劇ず涓衡?(FileDir)鈥濓紱閫夋嫨鈥滄崟鑾瘋緭鍑衡濆閫夋銆?br />1.2 娣誨姞鎵ц鍔熻兘
鈥滆彍鍗曟枃瀛椻濋噷鐨勫唴瀹逛慨鏀逛負(fù)鈥淛AVA鈥濓紱
鈥滃懡浠も濋夋嫨瀹夎JDK鍚庣殑BIN鐩綍涓殑緙栬瘧紼嬪簭JAVA.EXE錛岃礬寰勪負(fù)鈥渃:\jdk\bin\java.exe鈥濓紱
鈥滃弬鏁扳濋夋嫨鈥滄枃浠跺悕錛堜笉鍚墿灞曞悕錛夆濓紝鍗蟲樉紺轟負(fù)鈥?(FileNameNoExt)鈥濓紱
鈥滃垵濮嬬洰褰曗濋夋嫨鈥滄枃浠剁洰褰曗濓紝鏄劇ず涓衡?(FileDir)鈥濓紱閫夋嫨鈥滄崟鑾瘋緭鍑衡濆閫夋銆?br />榪欐牱灝卞畬鎴愪簡鍩烘湰鐨勯厤緗伐浣滐紝涓嬮潰鏉ヨ瘯鐫緙栧啓涓涓狫AVA紼嬪簭鏉ユ祴璇曚竴涓嬶紙濡傚浘錛夛紝緙栬瘧鐨勬墍鏈変俊鎭兘浼?xì)鏄窘C哄湪杈撳嚭紿楀彛涓紝鍙屽嚮鏌愪竴琛岄敊璇俊鎭紝EditPlus浼?xì)鑷姩瀹氫綅鍒板嚭閿欒?
杞嚜錛?a >http://www.neeao.com/blog/article.asp?id=2400錛?br />
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聽*榛樿寰楀厠闅嗘柟娉曚負(fù)嫻呭厠闅嗗彧鍏嬮殕瀵硅薄寰楅潪寮曠敤綾誨瀷(鎴栬呴潪瀵硅薄鍨嬶級鎴愬憳
聽*瑕佸仛娣卞厠闅嗘湁涓ょ鏂規(guī)硶錛?br />聽*a.瑕嗗啓鍏嬮殕鏂規(guī)硶錛堝紩鐢ㄥ瀷鎴愬憳鐨勫厠闅嗘柟娉曪級騫朵笖鍏嬮殕鏃舵帀涓嬈″紩鐢ㄥ瀷鎴愬憳鐨勫厠闅嗘柟娉曪紒
聽*b.搴忓垪鍖栧璞℃椂榛樿涓烘繁鍏嬮殕
聽*
聽*/
聽
聽class Friend implements Cloneable {
聽聽 int age;
聽聽 String name;
聽聽
聽聽public Friend(int age, String name) {
聽聽聽this.age = age;
聽聽聽this.name = name;聽
聽聽}
聽聽
聽聽public Object clone () throws CloneNotSupportedException {
聽聽聽return super.clone();聽
聽聽}
聽聽聽
聽}
聽
聽class Person implements Cloneable聽 {
聽聽 int age;
聽聽/* *
聽聽 *String 綾誨瀷鐗規(guī)畩錛屽洜涓轟粬涓哄紩鐢ㄥ瀷錛岃屼笖浠栨寚鍚戠殑鍊間負(fù)甯擱噺錛屽厠闅嗗嚭鏉ョ殑瀵硅薄鏀瑰彉浠栫殑
聽聽 *鍊煎疄闄呬笂鏄敼鍙樹簡鍏嬮殕鍑烘潵瀵硅薄String綾誨瀷鎴愬憳鐨勬寚鍚戜笉浼?xì)濯勫搷琚厠闅嗗璞＄殑鍊煎強(qiáng)鍏舵寚鍚?
聽聽 *鍥犱負(fù)寮曠敤琚厠闅嗕簡錛屾垜鏀瑰彉鐨勬槸寮曠敤鐨勬寚鍚戯紒
聽聽*/
聽聽 String name;
聽聽
聽聽 Friend f;
聽聽
聽聽public Person(int age, String name, Friend f) {
聽聽聽this.age = age;
聽聽聽this.name = name;
聽聽聽this.f = f;
聽聽}
聽聽
聽聽public Object clone () throws CloneNotSupportedException {
聽聽聽Person p = (Person)super.clone();
聽聽聽p.f = (Friend)p.f.clone();
聽聽聽return p;聽
聽聽}
聽聽
聽聽public String toString(){
聽聽StringBuffer sb = new StringBuffer();
聽聽return super.toString()+sb.append("age=").append(age).
聽聽聽append(",name=").append(name).
聽聽聽append("friend=").append("f.name=").
聽聽聽append(f.name).append("f.age=").append(f.age).toString();
聽}
聽}
聽
聽
聽public class Clonetest {
聽聽public static void main(String [] args)聽 throws CloneNotSupportedException {
聽聽聽Person p = new Person(4,"haha",new Friend(5,"hehe"));
聽聽聽Person p1 = (Person)p.clone();
聽聽聽p1.name = "oop";
聽聽聽p1.age = 10;
聽聽聽p1.f.name = "ooad";
聽聽聽p1.f.age = 56;
聽聽聽System.out.println (p);
聽聽System.out.println (p1);
聽聽}聽
聽}
]]>
2.鏋勯犲嚱鏁頒笌緇ф壙鐨勫叧緋?br />瀛愮被鐨勬瀯閫犲嚱鏁板唴浼?xì)鍖呭惈涓涓埗綾繪瀯閫犲嚱鏁幫紝鍥犱負(fù)鍦ㄥ瓙綾繪瀯閫犲嚱鏁扮涓琛屼細(xì)榛樿璋冪敤鐖剁被鏋勯犲嚱鏁幫紝濡傛灉瑕嗗啓璇ヨ鍒欏彲浠ヨ嚜琛屾帶鍒剁埗綾繪瀯閫犲嚱鏁扮増鏈紱鍙寰楃埗綾繪瀯閫犲嚱鏁板拰瀛愮被鏋勯犲嚱鏁板緱鍏崇郴鏄滅戶鎵庫濅笉鏄滆鍐欌濓紝錛堟瘡涓級瀛愮被鏋勯犲嚱鏁扮戶鎵匡紙鍖呭惈錛夌埗綾繪瀯閫犲嚱鏁扮殑涓涓増鏈紝騫跺彲浠ユ湁鑷繁鐨勯儴鍒嗭紝綾諱技緇ф壙錛屽瓙綾諱笉瀹屽叏緇ф壙鐖剁被鏂規(guī)硶騫跺彲鐢辮嚜宸辯殑鏂規(guī)硶錛岀埗綾葷鏈変笉鑳界戶鎵褲?/p>
3.鎺ュ彛娌℃湁鏋勯犲嚱鏁扮殑鍘熷洜
1.鎺ュ彛閲岀殑鏂規(guī)硶瀹屽叏鎶借薄鏋勯犲嚱鏁版病鏈夊疄鐜頒綋錛屾棤鎰忎箟
2.鎺ュ彛涓轟簡瀹炵幇澶氱戶鎵匡紝瀛愮被鏋勯犲嚱鏁板繀欏昏皟鐢ㄧ埗綾繪瀯閫犲嚱鏁幫紝濡傛灉鎺ュ彛鏈夋瀯閫犲嚱鏁板瓙綾諱笉鐭ラ亾璋冪敤鍝釜鐖剁被鏋勯犲嚱鏁?/p>4.String涓嶴tringBuffer
String綾葷敤鏉ヨ〃紺洪偅浜涘垱寤哄悗灝變笉浼?xì)鍐嶆敼鍙樼殑瀛椊W︿覆錛屽畠鏄痠mmutable鐨勩?br />鑰孲tringBuffer綾葷敤鏉ヨ〃紺哄唴瀹瑰彲鍙樼殑瀛楃涓詫紝騫舵彁渚涗簡淇敼搴曞眰瀛楃涓茬殑鏂規(guī)硶銆?/p>
錛嶏紞褰撴垜浠繘琛屽瓧絎︽嫾鎺ユ椂錛岃浣跨敤StringBuffer綾昏岄潪String綾伙紝鍥犱負(fù)鍓嶈呭皢姣斿悗鑰呭揩涓婄櫨鍊嶃?/p>
鐨勭‘錛屽湪紼嬪簭鐨勫お澶氬満鍚堟垜浠兘浼?xì)杩涜瀛椊W︿覆鎷兼帴宸ヤ綔錛岀畝鍗曠殑浠ｇ爜紺轟緥濡備笅錛?/p>
String str="You are nice.";
str+="I love you so much.";
濡傛灉鐢⊿tringBuffer綾葷殑璇濓紝浠ｇ爜濡備笅錛?/p>
StringBuffer str= new StringBuffer("You are nice.");
str.append("I love you so much.");
聽聽聽聽聽聽聽 浠庤〃闈㈢湅鏉tring綾誨彧鐢ㄤ竴涓姞鍙鳳紙+錛変究瀹屾垚浜嗗瓧絎︿覆鐨勬嫾鎺ワ紝
鑰孲tringBuffer綾誨嵈瑕佽皟鐢ㄤ竴涓猘ppend()鏂規(guī)硶錛屾槸鍚﹀疄鐜拌搗鏉ユ洿綆媧侊紝鏇村崟綰憿錛熷叾瀹炰笉鐒訛紝
璁╂垜浠簡瑙ｄ竴涓嬬▼搴忚繍琛屽唴閮ㄥ彂鐢熶簡鍝簺浜嬫儏錛?/p>
聽聽聽聽聽聽聽 緇忕紪璇戝悗紼嬪簭鐨刡ytecode錛堝瓧鑺傜爜錛夊睍紺哄嚭浜嗗疄璐細(xì)聽 鍦ㄧ敤String綾誨璞＄洿鎺ユ嫾鎺ユ椂錛?br />JVM浼?xì)鍒涘晦Z竴涓復(fù)鏃剁殑StringBuffer綾誨璞★紝騫惰皟鐢ㄥ叾append()鏂規(guī)硶瀹屾垚瀛楃涓茬殑鎷兼帴錛?br />榪欐槸鍥犱負(fù)String綾繪槸涓嶅彲鍙樼殑錛屾嫾鎺ユ搷浣滀笉寰椾笉浣跨敤StringBuffer綾伙紙騫朵笖錛嶏紞JVM浼?xì)灏?You are nice."鍜?I love you so much."
鍒涘緩涓轟袱涓柊鐨凷tring瀵硅薄錛夈?br />涔嬪悗錛屽啀灝嗚繖涓復(fù)鏃禨tringBuffer瀵硅薄杞瀷涓轟竴涓猄tring錛屼唬浠蜂笉鑿詫紒鍙錛屽湪榪欎竴涓畝鍗曠殑涓嬈℃嫾鎺ヨ繃紼嬩腑錛?br />鎴戜滑璁╃▼搴忓垱寤轟簡鍥涗釜瀵硅薄錛氫袱涓緟鎷兼帴鐨凷tring錛屼竴涓復(fù)鏃禨tringBuffer錛?br />鍜屾渶鍚庡皢StringBuffer杞瀷鎴愪負(fù)鐨凷tring錛嶏紞瀹冨綋鐒朵笉鏄渶鍒濈殑str浜嗭紝榪欎釜寮曠敤鐨勫悕縐版病鍙橈紝浣嗗畠鎸囧悜浜嗘柊鐨凷tring瀵硅薄銆?/p>
聽聽聽聽聽聽聽 鑰屽鏋滅洿鎺ヤ嬌鐢⊿tringBuffer綾伙紝紼嬪簭灝嗗彧浜х敓涓や釜瀵硅薄錛?br />鏈鍒濈殑StringBuffer鍜屾嫾鎺ユ椂鐨凷tring錛?I love you so much."錛夛紝
涔熶笉鍐嶉渶瑕佸垱寤轟復(fù)鏃剁殑StringBuffer綾誨璞¤屽悗榪樺緱灝嗗叾杞崲鍥濻tring瀵硅薄銆?/p>
聽聽聽聽聽聽聽 鍙互鎯寵薄錛屽綋鎴戜滑鐨勫瓧絎︿覆瑕佽寰幆鎷兼帴鑻ュ共孌墊椂錛?br />鐢⊿tring綾葷洿鎺ユ搷浣滀細(xì)甯︽潵澶氬皯棰濆鐨勭郴緇熷紑閿錛岀敓鎴愬灝戞棤鐢ㄧ殑涓存椂StringBuffer瀵硅薄錛?br />騫跺鐞嗗灝戞鏃犺皳鐨勫己鍒剁被鍨嬭漿鎹㈠摢銆?br />
5. equals() 鍜?==聽
聽聽聽equals() 姣斿璞″鹼紝鍗沖睘鎬ф槸鍚︾浉絳壜?br />聽聽 ==姣斿紩鐢紝鍦板潃
聽聽 鍦ㄧ紪璇戞椂鏈熺‘瀹氱殑涓や釜瀛楃涓插璞″紩鐢ㄧ浉絳夛紙錛濓紳錛?br />聽聽 涓嶅湪緙栬瘧鏈熺‘瀹氱殑涓や釜瀛楃涓插瓧絎︿覆寮曠敤涓嶇浉絳?/p>