﻿{"id":871,"date":"2014-02-03T18:18:36","date_gmt":"2014-02-03T10:18:36","guid":{"rendered":"http:\/\/notes.zerobox.org\/?p=871"},"modified":"2014-02-03T18:18:36","modified_gmt":"2014-02-03T10:18:36","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3java-helloworld","status":"publish","type":"post","link":"http:\/\/zerobox.org\/notes\/871.html","title":{"rendered":"\u6df1\u5165\u7406\u89e3Java HelloWorld"},"content":{"rendered":"<p>\u672c\u6587\u7531 ImportNew &#8211; \u9ec4\u98de\u98de \u7ffb\u8bd1\u81ea programcreek\u3002\u5982\u9700\u8f6c\u8f7d\u672c\u6587\uff0c\u8bf7\u5148\u53c2\u89c1\u6587\u7ae0\u672b\u5c3e\u5904\u7684\u8f6c\u8f7d\u8981\u6c42\u3002<br \/>\nImportnew\u6ce8\uff1a\u5982\u679c\u4f60\u4e5f\u5bf9Java\u6280\u672f\u7ffb\u8bd1\u5206\u4eab\u611f\u5174\u8da3\uff0c\u6b22\u8fce\u52a0\u5165\u6211\u4eec\u7684Java\u5f00\u53d1\u5c0f\u7ec4\u3002\u53c2\u4e0e\u65b9\u5f0f\u8bf7\u67e5\u770b\u5c0f\u7ec4\u7b80\u4ecb\u3002<\/p>\n<p>HelloWorld\u662f\u6bcf\u4e2aJava\u7a0b\u5e8f\u5458\u90fd\u77e5\u9053\u7684\u7a0b\u5e8f\u3002\u5b83\u5f88\u7b80\u5355\uff0c\u4f46\u662f\u7b80\u5355\u7684\u5f00\u59cb\u53ef\u4ee5\u5f15\u5bfc\u4f60\u53bb\u6df1\u5165\u4e86\u89e3\u66f4\u590d\u6742\u7684\u4e1c\u897f\u3002\u8fd9\u7bc7\u6587\u7ae0\u5c06\u63a2\u7a76\u4ece\u8fd9\u4e2aHelloWorld\u8fd9\u4e2a\u7b80\u5355\u7a0b\u5e8f\u4e2d\u53ef\u4ee5\u5b66\u5230\u7684\u4e1c\u897f\u3002\u5982\u679c\u4f60\u5bf9HelloWorld\u6709\u72ec\u5230\u7684\u7406\u89e3\uff0c\u6b22\u8fce\u7559\u4e0b\u4f60\u7684\u8bc4\u8bba\u3002<\/p>\n<p>HelloWorld.java<\/p>\n<p>1<br \/>\n2<br \/>\n3<br \/>\n4<br \/>\n5<br \/>\n6<br \/>\n7<br \/>\n8<br \/>\n9<br \/>\n10<br \/>\n11<br \/>\n12<br \/>\n13<br \/>\npublic class HelloWorld {<\/p>\n<p>    \/**<br \/>\n     *<br \/>\n     * @param args<br \/>\n     *\/<\/p>\n<p>    public static void main(String[] args) {<br \/>\n        \/\/ TODO Auto-generated method stub<br \/>\n        System.out.println(&#8220;Hello World&#8221;);<br \/>\n    }<\/p>\n<p>}<br \/>\n1\u3001\u4e3a\u4ec0\u4e48\u4e00\u5207\u90fd\u662f\u4ece\u7c7b\u5f00\u59cb\uff1f<\/p>\n<p>Java\u7a0b\u5e8f\u662f\u4ece\u7c7b\u5f00\u59cb\u6784\u5efa\u7684, \u6bcf\u4e2a\u65b9\u6cd5\u548c\u5b57\u6bb5\u90fd\u5fc5\u987b\u5728\u7c7b\u91cc\u9762\u3002\u8fd9\u662f\u7531\u4e8eJava\u9762\u5411\u5bf9\u8c61\u7684\u7279\u6027: \u4e00\u5207\u90fd\u662f\u5bf9\u8c61\uff0c\u5b83\u662f\u7c7b\u7684\u4e00\u4e2a\u5b9e\u4f8b\u3002\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u8bed\u8a00\u76f8\u6bd4\u51fd\u6570\u5f0f\u7f16\u7a0b\u8bed\u8a00\u6709\u8bb8\u591a\u7684\u4f18\u52bf\uff0c\u6bd4\u5982\u66f4\u597d\u7684\u6a21\u5757\u5316\u3001\u53ef\u6269\u5c55\u6027\u7b49\u7b49\u3002<\/p>\n<p>2\u3001\u4e3a\u4ec0\u4e48\u603b\u6709\u4e00\u4e2a\u201cmain\u65b9\u6cd5\u201d\uff1f<\/p>\n<p>main\u65b9\u6cd5\u662f\u7a0b\u5e8f\u7684\u5165\u53e3\uff0c\u5e76\u4e14\u662f\u9759\u6001\u65b9\u6cd5\u3002static\u5173\u952e\u5b57\u610f\u5473\u7740\u8fd9\u4e2a\u65b9\u6cd5\u662f\u7c7b\u7684\u4e00\u90e8\u5206\uff0c\u800c\u4e0d\u662f\u5b9e\u4f8b\u5bf9\u8c61\u7684\u4e00\u90e8\u5206\u3002\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\u5462? \u4e3a\u4ec0\u4e48\u6211\u4eec\u4e0d\u7528\u4e00\u4e2a\u975e\u9759\u6001\u7684\u65b9\u6cd5\u4f5c\u4e3a\u7a0b\u5e8f\u7684\u5165\u53e3\u5462\uff1f<\/p>\n<p>\u5982\u679c\u4e00\u4e2a\u65b9\u6cd5\u4e0d\u662f\u9759\u6001\u7684\uff0c\u90a3\u4e48\u5bf9\u8c61\u9700\u8981\u5148\u88ab\u521b\u5efa\u597d\u4ee5\u540e\u624d\u80fd\u4f7f\u7528\u8fd9\u4e2a\u65b9\u6cd5\u3002\u56e0\u4e3a\u8fd9\u4e2a\u65b9\u6cd5\u5fc5\u987b\u8981\u5728\u4e00\u4e2a\u5bf9\u8c61\u4e0a\u8c03\u7528\u3002\u5bf9\u4e8e\u4e00\u4e2a\u5165\u53e3\u6765\u8bf4\uff0c\u8fd9\u662f\u4e0d\u73b0\u5b9e\u7684\u3002\u56e0\u6b64\uff0c\u7a0b\u5e8f\u7684\u5165\u53e3\u65b9\u6cd5\u662f\u9759\u6001\u7684\u3002<\/p>\n<p>\u53c2\u6570 \u201cString[] args\u201d\u8868\u660e\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u6570\u7ec4\u4f20\u9012\u7ed9\u7a0b\u5e8f\u6765\u5e2e\u52a9\u7a0b\u5e8f\u521d\u59cb\u5316\u3002<\/p>\n<p>3\u3001HelloWorld\u7a0b\u5e8f\u7684\u5b57\u8282\u7801<\/p>\n<p>\u4e3a\u4e86\u6267\u884c\u8fd9\u4e2a\u7a0b\u5e8f\uff0cJava\u6587\u4ef6\u9996\u5148\u88ab\u7f16\u8bd1\u6210Java\u5b57\u8282\u7801\u5b58\u50a8\u5230.class\u6587\u4ef6\u4e2d\u3002\u90a3\u4e48\u5b57\u8282\u7801\u770b\u8d77\u6765\u662f\u4ec0\u4e48\u6837\u7684\u5462\uff1f\u5b57\u8282\u7801\u672c\u8eab\u662f\u4e0d\u53ef\u8bfb\u7684\uff0c\u5982\u679c\u6211\u4eec\u4f7f\u7528\u4e00\u4e2a\u4e8c\u8fdb\u5236\u7f16\u8f91\u5668\u6253\u5f00\uff0c\u5b83\u770b\u8d77\u6765\u5c31\u50cf\u4e0b\u9762\u90a3\u6837\uff1a<\/p>\n<p>\u5728\u4e0a\u9762\u7684\u5b57\u8282\u7801\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5f88\u591a\u7684\u64cd\u4f5c\u7801\uff08\u6bd4\u5982CA\u30014C\u7b49\u7b49\uff09\uff0c\u5b83\u4eec\u4e2d\u7684\u6bcf\u4e00\u4e2a\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684\u52a9\u8bb0\u7801\uff08\u6bd4\u5982\u4e0b\u9762\u4f8b\u5b50\u4e2d\u7684aload_0\uff09\u3002\u64cd\u4f5c\u7801\u662f\u4e0d\u53ef\u8bfb\u7684\uff0c\u4f46\u662f\u53ef\u4ee5\u4f7f\u7528javap\u6765\u67e5\u770b.class\u6587\u4ef6\u7684\u52a9\u8bb0\u5f62\u5f0f\u3002<\/p>\n<p>\u5bf9\u4e8e\u7c7b\u4e2d\u7684\u6bcf\u4e2a\u65b9\u6cd5\u6267\u884c\u201cjavap -c\u201d\u53ef\u4ee5\u8f93\u51fa\u53cd\u6c47\u7f16\u4ee3\u7801\u3002\u53cd\u6c47\u7f16\u4ee3\u7801\u5373\u7ec4\u6210Java\u5b57\u8282\u7801\u7684\u6307\u4ee4\u3002<\/p>\n<p>1<br \/>\njavap -classpath .  -c HelloWorld<br \/>\n1<br \/>\n2<br \/>\n3<br \/>\n4<br \/>\n5<br \/>\n6<br \/>\n7<br \/>\n8<br \/>\n9<br \/>\n10<br \/>\n11<br \/>\n12<br \/>\n13<br \/>\n14<br \/>\n15<br \/>\nCompiled from &#8220;HelloWorld.java&#8221;<br \/>\npublic class HelloWorld extends java.lang.Object{<br \/>\npublic HelloWorld();<br \/>\n  Code:<br \/>\n   0:   aload_0<br \/>\n   1:   invokespecial   #1; \/\/Method java\/lang\/Object.&#8221;<init>&#8220;:()V<br \/>\n   4:   return<\/p>\n<p>public static void main(java.lang.String[]);<br \/>\n  Code:<br \/>\n   0:   getstatic   #2; \/\/Field java\/lang\/System.out:Ljava\/io\/PrintStream;<br \/>\n   3:   ldc #3; \/\/String Hello World<br \/>\n   5:   invokevirtual   #4; \/\/Method java\/io\/PrintStream.println:(Ljava\/lang\/String;)V<br \/>\n   8:   return<br \/>\n}<br \/>\n\u4e0a\u9762\u7684\u4ee3\u7801\u5305\u542b\u4e24\u4e2a\u65b9\u6cd5: \u4e00\u4e2a\u662f\u7f16\u8bd1\u5668\u63a8\u65ad\u51fa\u6765\u7684\u9ed8\u8ba4\u7684\u6784\u9020\u5668\uff1b\u53e6\u5916\u4e00\u4e2a\u662fmain\u65b9\u6cd5\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u6bcf\u4e2a\u65b9\u6cd5\u90fd\u6709\u4e00\u7cfb\u5217\u7684\u6307\u4ee4\u3002\u6bd4\u5982aload_0\u3001invokespecial #1\u7b49\u7b49\u3002\u53ef\u4ee5\u5728Java\u5b57\u8282\u7801\u6307\u4ee4\u96c6\u4e2d\u67e5\u5230\u6bcf\u4e2a\u6307\u4ee4\u7684\u529f\u80fd\uff0c\u4f8b\u5982aload_0\u7528\u6765\u4ece\u5c40\u90e8\u53d8\u91cf0\u4e2d\u52a0\u8f7d\u4e00\u4e2a\u5f15\u7528\u5230\u5806\u6808\uff0cgetstatic\u7528\u6765\u83b7\u53d6\u7c7b\u7684\u4e00\u4e2a\u9759\u6001\u5b57\u6bb5\u503c\u3002\u53ef\u4ee5\u6ce8\u610f\u5230\uff0cgetstatic\u6307\u4ee4\u4e4b\u540e\u7684\u201c#2\u2033\u6307\u5411\u7684\u662f\u8fd0\u884c\u671f\u5e38\u91cf\u6c60\u3002\u5e38\u91cf\u6c60\u662fJVM\u8fd0\u884c\u65f6\u6570\u636e\u533a\u4e4b\u4e00\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u201cjavap -verbose\u201d\u547d\u4ee4\u6765\u67e5\u770b\u5e38\u91cf\u6c60\u3002<\/p>\n<p>\u53e6\u5916, \u6bcf\u4e2a\u6307\u4ee4\u4ece\u4e00\u4e2a\u6570\u5b57\u5f00\u59cb\uff0c\u6bd4\u59820\u30011\u30014\u7b49\u7b49\u3002\u5728.class\u6587\u4ef6\u4e2d\uff0c\u6bcf\u4e2a\u65b9\u6cd5\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684\u5b57\u8282\u7801\u6570\u7ec4\u3002\u8fd9\u4e9b\u6570\u5b57\u5bf9\u5e94\u4e8e\u5b58\u50a8\u6bcf\u4e2a\u64cd\u4f5c\u7801\u53ca\u5176\u53c2\u6570\u7684\u6570\u7ec4\u7684\u4e0b\u6807\u3002\u6bcf\u4e2a\u64cd\u4f5c\u7801\u90fd\u662f1\u4e2a\u5b57\u8282\u957f\u5ea6\uff0c\u5e76\u4e14\u6307\u4ee4\u53ef\u4ee5\u67090\u4e2a\u6216\u591a\u4e2a\u53c2\u6570\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u8fd9\u4e9b\u6570\u5b57\u4e0d\u662f\u8fde\u7eed\u7684\u539f\u56e0\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u4f7f\u7528\u201cjavap -verbose\u201d\u8fd9\u4e2a\u547d\u4ee4\u6765\u8fdb\u4e00\u6b65\u89c2\u5bdf\u8fd9\u4e2a\u7c7b\u3002<\/p>\n<p>1<br \/>\njavap -classpath . -verbose HelloWorld<br \/>\n1<br \/>\n2<br \/>\n3<br \/>\n4<br \/>\n5<br \/>\n6<br \/>\n7<br \/>\n8<br \/>\n9<br \/>\n10<br \/>\n11<br \/>\n12<br \/>\n13<br \/>\n14<br \/>\n15<br \/>\n16<br \/>\n17<br \/>\n18<br \/>\n19<br \/>\n20<br \/>\n21<br \/>\n22<br \/>\n23<br \/>\n24<br \/>\n25<br \/>\n26<br \/>\n27<br \/>\n28<br \/>\n29<br \/>\n30<br \/>\n31<br \/>\n32<br \/>\n33<br \/>\n34<br \/>\n35<br \/>\n36<br \/>\n37<br \/>\n38<br \/>\n39<br \/>\n40<br \/>\n41<br \/>\n42<br \/>\n43<br \/>\n44<br \/>\n45<br \/>\n46<br \/>\n47<br \/>\n48<br \/>\n49<br \/>\n50<br \/>\n51<br \/>\n52<br \/>\n53<br \/>\n54<br \/>\n55<br \/>\n56<br \/>\n57<br \/>\nCompiled from &#8220;HelloWorld.java&#8221;<br \/>\npublic class HelloWorld extends java.lang.Object<br \/>\n  SourceFile: &#8220;HelloWorld.java&#8221;<br \/>\n  minor version: 0<br \/>\n  major version: 50<br \/>\n  Constant pool:<br \/>\nconst #1 = Method   #6.#15; \/\/  java\/lang\/Object.&#8221;<init>&#8220;:()V<br \/>\nconst #2 = Field    #16.#17;    \/\/  java\/lang\/System.out:Ljava\/io\/PrintStream;<br \/>\nconst #3 = String   #18;    \/\/  Hello World<br \/>\nconst #4 = Method   #19.#20;    \/\/  java\/io\/PrintStream.println:(Ljava\/lang\/String;)V<br \/>\nconst #5 = class    #21;    \/\/  HelloWorld<br \/>\nconst #6 = class    #22;    \/\/  java\/lang\/Object<br \/>\nconst #7 = Asciz    <init>;<br \/>\nconst #8 = Asciz    ()V;<br \/>\nconst #9 = Asciz    Code;<br \/>\nconst #10 = Asciz   LineNumberTable;<br \/>\nconst #11 = Asciz   main;<br \/>\nconst #12 = Asciz   ([Ljava\/lang\/String;)V;<br \/>\nconst #13 = Asciz   SourceFile;<br \/>\nconst #14 = Asciz   HelloWorld.java;<br \/>\nconst #15 = NameAndType #7:#8;\/\/  &#8220;<init>&#8220;:()V<br \/>\nconst #16 = class   #23;    \/\/  java\/lang\/System<br \/>\nconst #17 = NameAndType #24:#25;\/\/  out:Ljava\/io\/PrintStream;<br \/>\nconst #18 = Asciz   Hello World;<br \/>\nconst #19 = class   #26;    \/\/  java\/io\/PrintStream<br \/>\nconst #20 = NameAndType #27:#28;\/\/  println:(Ljava\/lang\/String;)V<br \/>\nconst #21 = Asciz   HelloWorld;<br \/>\nconst #22 = Asciz   java\/lang\/Object;<br \/>\nconst #23 = Asciz   java\/lang\/System;<br \/>\nconst #24 = Asciz   out;<br \/>\nconst #25 = Asciz   Ljava\/io\/PrintStream;;<br \/>\nconst #26 = Asciz   java\/io\/PrintStream;<br \/>\nconst #27 = Asciz   println;<br \/>\nconst #28 = Asciz   (Ljava\/lang\/String;)V;<\/p>\n<p>{<br \/>\npublic HelloWorld();<br \/>\n  Code:<br \/>\n   Stack=1, Locals=1, Args_size=1<br \/>\n   0:   aload_0<br \/>\n   1:   invokespecial   #1; \/\/Method java\/lang\/Object.&#8221;<init>&#8220;:()V<br \/>\n   4:   return<br \/>\n  LineNumberTable:<br \/>\n   line 2: 0<\/p>\n<p>public static void main(java.lang.String[]);<br \/>\n  Code:<br \/>\n   Stack=2, Locals=1, Args_size=1<br \/>\n   0:   getstatic   #2; \/\/Field java\/lang\/System.out:Ljava\/io\/PrintStream;<br \/>\n   3:   ldc #3; \/\/String Hello World<br \/>\n   5:   invokevirtual   #4; \/\/Method java\/io\/PrintStream.println:(Ljava\/lang\/String;)V<br \/>\n   8:   return<br \/>\n  LineNumberTable:<br \/>\n   line 9: 0<br \/>\n   line 10: 8<br \/>\n}<br \/>\n\u5f15\u7528JVM\u89c4\u8303\u4e2d\u7684\u63cf\u8ff0\uff1a\u8fd0\u884c\u671f\u5e38\u91cf\u6c60\u63d0\u4f9b\u7684\u529f\u80fd\u7c7b\u4f3c\u4f20\u7edf\u7f16\u7a0b\u8bed\u8a00\u7684\u7b26\u53f7\u8868\u6240\u8d77\u4f5c\u7528, \u5c3d\u7ba1\u5b83\u6bd4\u4f20\u7edf\u7684\u7b26\u53f7\u8868\u5305\u542b\u7684\u5185\u5bb9\u66f4\u5e7f\u8303\u3002<\/p>\n<p>\u201cinvokespecial #1\u2033\u6307\u4ee4\u4e2d\u7684\u201c#1\u2033\u6307\u5411\u5e38\u91cf\u6c60\u4e2d\u7684#1\u5e38\u91cf\u3002\u8fd9\u4e2a\u5e38\u91cf\u662f \u201cMethod #6.#15;\u201d\u3002\u901a\u8fc7\u8fd9\u4e2a\u6570\u5b57\uff0c\u6211\u4eec\u53ef\u4ee5\u9012\u5f52\u5730\u5f97\u5230\u6700\u7ec8\u7684\u5e38\u91cf\u3002<\/p>\n<p>LineNumberTable\u4e3a\u8c03\u8bd5\u5668\u63d0\u4f9b\u4e86\u7528\u6765\u6307\u793aJava\u6e90\u4ee3\u7801\u4e0e\u5b57\u8282\u7801\u6307\u4ee4\u4e4b\u95f4\u7684\u5bf9\u5e94\u4fe1\u606f\u3002\u4f8b\u5982\uff0cJava\u6e90\u4ee3\u7801\u4e2d\u7684\u7b2c9\u884c\u5bf9\u5e94\u4e8emain\u65b9\u6cd5\u4e2d\u7684\u5b57\u8282\u78010\uff0c\u5e76\u4e14\u7b2c10\u884c\u5bf9\u5e94\u4e8e\u5b57\u8282\u78018\u3002<\/p>\n<p>\u5982\u679c\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u5b57\u8282\u7801\u7684\u5185\u5bb9\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u66f4\u52a0\u590d\u6742\u7684\u7c7b\u8fdb\u884c\u7f16\u8bd1\u548c\u67e5\u770b\uff0cHelloWorld\u771f\u7684\u53ea\u662f\u4e00\u4e2a\u5f00\u59cb\u3002<\/p>\n<p>4\u3001HelloWorld\u5728JVM\u4e2d\u662f\u5982\u4f55\u6267\u884c\u7684\uff1f<\/p>\n<p>\u73b0\u5728\u7684\u95ee\u9898\u662fJVM\u662f\u600e\u6837\u52a0\u8f7d\u8fd9\u4e2a\u7c7b\u5e76\u8c03\u7528main\u65b9\u6cd5\uff1f<\/p>\n<p>\u5728main\u65b9\u6cd5\u6267\u884c\u4e4b\u524d, JVM\u9700\u8981\u52a0\u8f7d\u3001\u94fe\u63a5\u4ee5\u53ca\u521d\u59cb\u5316\u8fd9\u4e2a\u7c7b\u3002<br \/>\n1. \u52a0\u8f7d\u5c06\u7c7b\/\u63a5\u53e3\u7684\u4e8c\u8fdb\u5236\u5f62\u5f0f\u88c5\u5165JVM\u4e2d\u3002<br \/>\n2. \u94fe\u63a5\u5c06\u4e8c\u8fdb\u5236\u7c7b\u578b\u7684\u6570\u636e\u878d\u5165\u5230JVM\u7684\u8fd0\u884c\u65f6\u3002\u94fe\u63a5\u75313\u4e2a\u6b65\u9aa4\u7ec4\u6210\uff1a\u9a8c\u8bc1\u3001\u51c6\u5907\u3001\u4ee5\u53ca\u89e3\u6790\uff08\u53ef\u9009\uff09\u3002\u9a8c\u8bc1\u786e\u4fdd\u7c7b\u3001\u63a5\u53e3\u5728\u7ed3\u6784\u4e0a\u662f\u6b63\u786e\u7684\uff1b\u51c6\u5907\u6d89\u53ca\u5230\u4e3a\u7c7b\u3001\u63a5\u53e3\u5206\u914d\u6240\u9700\u8981\u7684\u5185\u5b58\uff1b\u89e3\u6790\u662f\u89e3\u6790\u7b26\u53f7\u5f15\u7528\u3002<br \/>\n3. \u6700\u540e\uff0c\u521d\u59cb\u5316\u4e3a\u7c7b\u53d8\u91cf\u5206\u914d\u6b63\u786e\u7684\u521d\u59cb\u503c\u3002<\/p>\n<p>\u52a0\u8f7d\u5de5\u4f5c\u662f\u7531Java\u7c7b\u52a0\u8f7d\u5668\u6765\u5b8c\u6210\u7684\u3002\u5f53JVM\u542f\u52a8\u65f6\uff0c\u4f1a\u4f7f\u7528\u4e0b\u9762\u4e09\u4e2a\u7c7b\u52a0\u8f7d\u5668\uff1a<\/p>\n<p>Bootstrap\u7c7b\u52a0\u8f7d\u5668\uff1a\u52a0\u8f7d\u4f4d\u4e8e\/jre\/lib\u76ee\u5f55\u4e0b\u7684\u6838\u5fc3Java\u7c7b\u5e93\u3002\u5b83\u662fJVM\u6838\u5fc3\u7684\u4e00\u90e8\u5206\uff0c\u5e76\u4e14\u4f7f\u7528\u672c\u5730\u4ee3\u7801\u7f16\u5199\u3002<br \/>\n\u6269\u5c55\u7c7b\u52a0\u8f7d\u5668\uff1a\u52a0\u8f7d\u6269\u5c55\u76ee\u5f55\u4e2d\u7684\u4ee3\u7801\uff08\u6bd4\u5982\/jar\/lib\/ext\uff09\u3002<br \/>\n\u7cfb\u7edf\u7c7b\u52a0\u8f7d\u5668\uff1a\u52a0\u8f7d\u5728CLASSPATH\u4e0a\u7684\u4ee3\u7801\u3002<br \/>\n\u6240\u4ee5\uff0cHelloWorld\u7c7b\u662f\u7531\u7cfb\u7edf\u52a0\u8f7d\u5668\u52a0\u8f7d\u7684\u3002\u5f53main\u65b9\u6cd5\u6267\u884c\u65f6\uff0c\u5b83\u4f1a\u89e6\u53d1\u52a0\u8f7d\u5176\u5b83\u4f9d\u8d56\u7684\u7c7b\uff0c\u8fdb\u884c\u94fe\u63a5\u548c\u521d\u59cb\u5316\u3002\u524d\u63d0\u662f\u5b83\u4eec\u5df2\u7ecf\u5b58\u5728\u3002<\/p>\n<p>\u6700\u540e\uff0cmain()\u5e27\u88ab\u538b\u5165JVM\u5806\u6808\uff0c\u5e76\u4e14\u7a0b\u5e8f\u8ba1\u6570\u5668\uff08PC\uff09\u4e5f\u8fdb\u884c\u4e86\u76f8\u5e94\u7684\u8bbe\u7f6e\u3002\u7136\u540e\uff0cPC\u6307\u793a\u5c06println()\u5e27\u538b\u5165JVM\u5806\u6808\u6808\u9876\u3002\u5f53main()\u65b9\u6cd5\u6267\u884c\u5b8c\u6bd5\u4f1a\u88ab\u5f39\u51fa\u5806\u6808\uff0c\u81f3\u6b64\u6267\u884c\u8fc7\u7a0b\u5c31\u7ed3\u675f\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u7531 ImportNew &#8211; \u9ec4\u98de\u98de \u7ffb\u8bd1\u81ea programcre &hellip;<\/p>\n<p class=\"read-more\"><a href=\"http:\/\/zerobox.org\/notes\/871.html\">\u7ee7\u7eed\u9605\u8bfb &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[96],"class_list":["post-871","post","type-post","status-publish","format-standard","hentry","tag-java"],"views":583,"_links":{"self":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts\/871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/comments?post=871"}],"version-history":[{"count":0,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts\/871\/revisions"}],"wp:attachment":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/media?parent=871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/categories?post=871"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/tags?post=871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}