Java璇█鐨勫涔犺祫婧愪赴瀵屽褰╋紝娑电洊浜嗕粠鍩虹鐭ヨ瘑鍒伴珮绾у簲鐢ㄧ殑鍚勪釜鏂归潰銆傛湰鎸囧崡鏃ㄥ湪涓篔ava瀛︿範鑰呮彁渚涘叏闈㈢殑瀛︿範璺緞鍜屾繁鍏ョ殑鐞嗚В銆?/p>

姒傝堪锛?/p>

Java鏄竴绉嶅箍娉涗娇鐢ㄧ殑闈㈠悜瀵硅薄缂栫▼璇█锛岀敱James Gosling绛変汉鍦ㄤ笂涓栫邯90骞翠唬鍒濆湪Sun Microsystems锛堢幇宸茶Oracle鏀惰喘锛夊紑鍙戙€侸ava浠ュ叾璺ㄥ钩鍙板吋瀹规€с€佸畨鍏ㄦ€с€佺ǔ瀹氭€с€佸绾跨▼鏀寔绛夌壒鎬ц€屽鍙楁帹宕囥€備互涓嬫槸閫夋嫨Java浣滀负缂栫▼璇█鐨勫嚑涓叧閿偣锛?/p>

骞冲彴鏃犲叧鎬э細Java搴旂敤绋嬪簭鍙互鍦ㄥ悇绉嶆搷浣滅郴缁熷拰纭欢骞冲彴涓婅繍琛屻€傚彧闇€缂栧啓涓€娆′唬鐮侊紝鍗冲彲杞绘澗鍦ㄥ涓钩鍙颁笂閮ㄧ讲鍜岃繍琛屻€傝繖绉嶈法骞冲彴鐗规€ф瀬澶у湴鎻愰珮浜嗗紑鍙戞晥鐜囧拰浠ｇ爜鐨勫彲绉绘鎬с€?/p>

瀹夊叏鎬э細Java鍏峰涓ユ牸鐨勭被鍨嬫鏌ュ拰鍐呭瓨绠＄悊鏈哄埗锛屾湁鏁堝噺灏戜簡杩愯鏃堕敊璇拰瀹夊叏婕忔礊鐨勯闄┿€傝繖浣垮緱Java搴旂敤绋嬪簭鏇村姞鍙潬鍜屽畨鍏ㄣ€?/p>

鍋ュ．鎬э細Java鎻愪緵浜嗚嚜鍔ㄥ唴瀛樼鐞嗐€佸紓甯稿鐞嗗拰绫诲姞杞芥満鍒剁瓑鐗规€э紝甯姪寮€鍙戣€呯紪鍐欏嚭鏇寸ǔ瀹氱殑搴旂敤绋嬪簭銆傝繖浜涚壒鎬ф湁鍔╀簬鍑忓皯閿欒鍜屽紓甯革紝鎻愰珮浠ｇ爜璐ㄩ噺銆?/p>

鍙Щ妞嶆€э細Java婧愪唬鐮佺粡杩囩紪璇戝悗鐢熸垚鐨勫瓧鑺傜爜鍙互鍦ㄤ换浣曟敮鎸丣ava杩愯鐜鐨勭郴缁熶笂杩愯銆傝繖鎰忓懗鐫€寮€鍙戣€呭彲浠ヨ交鏉惧湴灏嗗叾浠ｇ爜浠庝竴涓钩鍙拌縼绉诲埌鍙︿竴涓钩鍙帮紝鑰屼笉蹇呮媴蹇冨吋瀹规€ч棶棰樸€?/p>

楂樻€ц兘锛氶€氳繃JIT锛堝嵆鏃剁紪璇戯級鎶€鏈紝Java绋嬪簭鍦ㄨ繍琛屾椂鍙互鎻愰珮鎵ц鏁堢巼銆傝繖鎰忓懗鐫€Java搴旂敤绋嬪簭鍙互鍏呭垎鍒╃敤绯荤粺璧勬簮锛屾彁渚涘嚭鑹茬殑鎬ц兘琛ㄧ幇銆?/p>

澶氱嚎绋嬫敮鎸侊細Java鍘熺敓鏀寔澶氱嚎绋嬬紪绋嬶紝浣垮紑鍙戣€呰兘澶熻交鏉剧紪鍐欏苟鍙戝簲鐢ㄧ▼搴忋€傚绾跨▼缂栫▼鏈夊姪浜庢彁楂樼▼搴忕殑鍝嶅簲鎬у拰鎬ц兘锛岀壒鍒槸鍦ㄥ鐞嗗ぇ閲忔暟鎹拰澶嶆潅浠诲姟鏃躲€?/p>

瀹夎涓庨厤缃細

瑕佸紑濮婮ava涔嬫梾锛岄鍏堥渶瑕佸畨瑁匤DK锛圝ava Development Kit锛夈€備互涓嬫槸瀹夎JDK鐨勬楠わ細

涓嬭浇JDK瀹夎鍖咃細浠嶰racle瀹樻柟缃戠珯涓嬭浇鏈€鏂扮増鏈殑JDK瀹夎鍖呫€?/p>

瑙ｅ帇瀹夎鍖咃細浣跨敤閫傚綋鐨勫懡浠ゅ皢JDK瀹夎鍖呰В鍘嬪埌鎸囧畾鐩綍銆備緥濡傦紝鍦↙inux绯荤粺涓婂彲浠ヤ娇鐢╰ar鍛戒护杩涜瑙ｅ帇銆?/p>

璁剧疆鐜鍙橀噺锛氬湪绯荤粺涓婅缃甁DK鐨勭幆澧冨彉閲忥紝浠ヤ究閫氳繃鍛戒护琛岃闂甁ava鍛戒护銆傚彲浠ラ€氳繃缂栬緫鐩稿簲鐨勯厤缃枃浠讹紙濡倊/.bashrc鎴杶/.bash_profile锛夋潵閰嶇疆鐜鍙橀噺銆傜‘淇濈幆澧冨彉閲忕敓鏁堝悗锛屼綘鍙互杩愯鍛戒护鏉ラ獙璇丣ava鏄惁鎴愬姛瀹夎銆?/p>

缂栧啓绗竴涓狫ava绋嬪簭锛?/p>

鍒涘缓涓€涓狫ava婧愪唬鐮佹枃浠讹紝渚嬪HelloWorld.java銆傚湪鏂囦欢涓緭鍏ヤ竴涓畝鍗曠殑Hello World绋嬪簭锛岀劧鍚庣紪璇戝苟杩愯瀹冦€傝繖鏄竴涓畝鍗曠殑绀轰緥锛屽睍绀轰簡Java缂栫▼鐨勫熀鏈祦绋嬨€傞€氳繃缂栧啓銆佺紪璇戝拰杩愯杩欎釜绠€鍗曠殑绋嬪簭锛屼綘鍙互浜嗚ВJava鐨勫熀鏈娉曞拰缁撴瀯銆?/p>

Java璇硶鍩虹锛?/p>

鍦↗ava涓紝鍙橀噺鐢ㄤ簬瀛樺偍鏁版嵁銆傛瘡涓彉閲忛兘闇€瑕佸０鏄庢暟鎹被鍨嬪拰鍙橀噺鍚嶃€傞櫎浜嗗熀鏈暟鎹被鍨嬶紙濡傛暣鏁板拰瀛楃涓诧級锛孞ava杩樻彁渚涗簡鍏朵粬鏁版嵁绫诲瀷鍜岀粨鏋勶紝濡傛暟缁勩€佸璞″拰闆嗗悎绛夈€備簡瑙ｈ繖浜涘熀纭€璇硶瀵逛簬缂栧啓澶嶆潅鐨凧ava绋嬪簭鑷冲叧閲嶈銆傝繕闇€瑕佺啛鎮夋帶鍒剁粨鏋勶紙濡傛潯浠惰鍙ュ拰寰幆璇彞锛変互鍙婇潰鍚戝璞＄紪绋嬬殑姒傚康锛堝绫诲拰瀵硅薄锛夈€傝繖浜涘熀纭€鐭ヨ瘑灏嗗府鍔╀綘鏋勫缓鍋ュ．鍜岄珮鏁堢殑Java搴旂敤绋嬪簭銆?/p>

閫氳繃閬靛惊鏈寚鍗楋紝浣犲皢鑳藉閫愭瀛︿範Java璇█骞舵垚涓轰竴鍚嶇啛缁冪殑Java寮€鍙戣€呫€傛棤璁轰綘鏄垵瀛﹁€呰繕鏄湁涓€瀹氱粡楠岀殑寮€鍙戣€咃紝杩欎釜鎸囧崡閮藉皢涓轰綘鎻愪緵鏈変环鍊肩殑淇℃伅鍜岃祫婧愶紝甯姪浣犳洿濂藉湴鐞嗚В鍜屽簲鐢↗ava缂栫▼銆侸ava锛氫粠鍩虹鍒拌繘闃剁殑缂栫▼鍏冪礌姒傝

鍦↗ava缂栫▼涓紝鎴戜滑棣栧厛瑕佸畾涔変竴浜涘熀纭€鍙橀噺鍜屾暟鎹被鍨嬨€備緥濡傦紝鎴戜滑鍙互瀹氫箟骞撮緞涓轰竴涓暣鍨嬪彉閲忥紝鍚嶅瓧涓轰竴涓瓧绗︿覆鍙橀噺銆傚涓嬶細

```java

int age = 30;

String name = "John Doe";

```

Java鏀寔澶氱杩愮畻绗︼紝鍖呮嫭绠楁湳杩愮畻绗︺€佹瘮杈冭繍绠楃銆侀€昏緫杩愮畻绗︺€佷綅杩愮畻绗﹀拰璧嬪€艰繍绠楃銆傝繖浜涜繍绠楃鍙互甯姪鎴戜滑杩涜鍚勭璁＄畻鍜屾搷浣溿€備緥濡傦細

```java

int a = 10;

int b = 5;

// 鍔犳硶

int sum = a + b;

// 涔樻硶

int product = a b;

// 鍑忔硶

int difference = a - b;

// 闄ゆ硶

int division = a / b;

// 鍙栨ā

int modulus = a % b;

```

鍦↗ava涓紝鎺у埗缁撴瀯鍏佽鎴戜滑鎺у埗绋嬪簭鐨勬祦绋嬨€傚父瑙佺殑鎺у埗缁撴瀯鍖呮嫭if銆乪lse銆乫or銆亀hile鍜宻witch璇彞銆備緥濡傦細

```java

int num = 10;

if (num > 5) {

System.out.println("Number is greater than 5.");

} else {

System.out.println("Number is 5 or less.");

}

```

寰幆缁撴瀯鏄紪绋嬩腑闈炲父閲嶈鐨勯儴鍒嗭紝瀹冨厑璁告垜浠噸澶嶆墽琛屼唬鐮佸潡銆備緥濡傦紝鎴戜滑鍙互浣跨敤for寰幆鍜寃hile寰幆鏉ラ噸澶嶆墦鍗颁竴浜涗俊鎭細

```java

for (int i = 0; i < 10; i++) {

System.out.println("Count: " + i);

}

int j = 0;

while (j < 10) {

System.out.println("Count: " + j);

j++;

}

```

鍦↗ava缂栫▼涓紝娉ㄩ噴鏄潪甯搁噸瑕佺殑涓€閮ㄥ垎锛屽畠鍙互甯姪鎴戜滑瑙ｉ噴鍜岀悊瑙ｄ唬鐮佺殑缁撴瀯鍜屽姛鑳姐€傛敞閲婁笉浼氳缂栬瘧鍣ㄦ墽琛岋紝鍥犳瀹冧滑涓昏鐢ㄤ簬鎻愰珮浠ｇ爜鐨勫彲璇绘€с€備緥濡傦細

```java

// 鍗曡娉ㄩ噴

/ 杩欐槸澶氳娉ㄩ噴 /

```

鎺ヤ笅鏉ワ紝璁╂垜浠繁鍏ユ帰璁ㄩ潰鍚戝璞＄紪绋嬬殑鍩虹銆傚湪闈㈠悜瀵硅薄缂栫▼涓紝绫诲拰瀵硅薄鏄熀鐭炽€傜被瀹氫箟浜嗗璞＄殑灞炴€у拰鏂规硶銆備緥濡傦紝鎴戜滑鍙互鍒涘缓涓€涓狿erson绫绘潵琛ㄧず涓€涓汉鐨勫睘鎬у拰琛屼负锛?/p>

```java

class Person {

String name;

int age;

void sayHello() {

System.out.println("Hello, my name is " + name);

}

}

```

灏佽鏄潰鍚戝璞＄紪绋嬬殑涓€涓噸瑕佺壒鎬э紝瀹冨皢鏁版嵁鍜屾柟娉曠粦瀹氬湪涓€璧凤紝骞堕€氳繃璁块棶鎺у埗鏉ヤ繚鎶ゆ暟鎹€備緥濡傦細

```java

class Person {

private String name;

private int age; // 鍏朵粬浠ｇ爜...

}

```

缁ф壙鏄潰鍚戝璞＄紪绋嬬殑鍙︿竴涓噸瑕佺壒鎬э紝瀹冨厑璁镐竴涓被缁ф壙鍙︿竴涓被鐨勫睘鎬у拰鏂规硶銆備緥濡傦細

```java

class Employee extends Person {

String department; // 鍏朵粬浠ｇ爜...

}

```

class Doggie鍜孧eowers鐧诲満锛佽繖鏄袱涓唬琛ㄥ疇鐗╃嫍鐙楀拰鐚挭鐨勭被銆傚綋瀹冧滑鍙戝０鏃讹紝浼氬垎鍒彂鍑虹嫭鐗圭殑鍙０銆傝鎴戜滑涓€璧风湅鐪嬭繖涓や釜绫荤殑绮惧僵琛ㄧ幇鍚э紒

class Doggie {

void bark() {

System.out.println("姹豹锛?);

}

}

class Meowers {

void meow() {

System.out.println("鍠靛柕锛?);

}

}

public class AnimalTestDrive {

public static void main(String[] args) {

Doggie dog = new Doggie();

Meowers cat = new Meowers();

letThemSpeak(dog);

letThemSpeak(cat);

}

public static void letAnimalSpeak(Animal animal) { //鍋囪Animal绫绘湁涓€涓猻peak鏂规硶

animal.speak(); //姝ゅ璋冪敤鐨勬槸鍚勪釜鍔ㄧ墿鐨剆peak鏂规硶锛屼緥濡侱oggie鐨刡ark鍜孧eowers鐨刴eow鏂规硶銆?/p>

}

}

鐜板湪璁╂垜浠帹鑽愪竴浜涗紭璐ㄨ祫婧愭潵甯姪浣犳繁鍖朖ava缂栫▼鐨勫涔狅細

鍦ㄧ嚎鏁欑▼涓庢枃妗ｆ帹鑽愶細

馃寪鎱曡缃戯紙

馃摌Oracle瀹樻柟鏂囨。锛坉ocs.oracle.com/en/java/锛夛細瀹樻柟鎻愪緵鐨勮灏絁ava璇█鍜屽钩鍙版枃妗ｏ紝鍔╀綘绯荤粺瀛︿範銆?/p>

馃惁鑿滈笩鏁欑▼锛?

馃悧GeeksforGeeks锛?

璁哄潧涓庣ぞ鍖轰氦娴侊細

馃攳Stack Overflow锛坰tackoverflow.com锛夛細鍏ㄧ悆棰嗗厛鐨勭紪绋嬮棶绛旂ぞ鍖猴紝瑙ｅ喅浣犲湪Java缂栫▼涓殑鐤戦毦鏉傜棁銆?/p>

馃寪GitHub锛坓ithub.com锛夛細涓嶄粎鏄唬鐮佹墭绠″钩鍙帮紝鏇存槸鍒嗕韩鍜屽涔燡ava椤圭洰鐨勭粷浣冲満鎵€銆?/p>

寮€鍙戝伐鍏峰埄鍣細

馃洜IntelliJ IDEA锛?

馃敡Visual Studio Code锛坈ode.visualstudio.com锛夛細杞婚噺绾т絾鍔熻兘榻愬叏鐨勪唬鐮佺紪杈戝櫒锛屾敮鎸丣ava鎵╁睍锛岃浣犵殑缂栫▼鏇村姞渚挎嵎銆?/p>

閫氳繃杩欎簺鎺ㄨ崘璧勬簮锛屼綘灏嗚兘澶熸繁鍏ュ涔燡ava缂栫▼锛屽苟灏嗙悊璁虹煡璇嗗簲鐢ㄥ埌瀹為檯椤圭洰涓紝閫愭鎴愪负Java寮€鍙戦鍩熺殑涓撳銆傚湪缂栫▼鐨勯亾璺笂涓嶆柇鍓嶈锛屾帰绱㈡洿澶氱簿褰╁惂锛?/p>