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dz̸ΪʲôһjAvAԴļֻһpuBliC

DZ,ûpublic.һjavaԴļֻһpublic,һpublicʱ,Դļ֮һ,޷,Դļûһpublic,ļûһҪ.

publicļһ,Ϊ ֻһļ,Ȼֻһpublic

javaǴһpublicmainʼִе,(ʵmain߳),CǴmain()ʼִһ. ֻһpublicΪ˸װṩ. һpublic ֻܶΪļļ. ÿ뵥Ԫ(ļ)ֻһpublic .Ϊÿ뵥Ԫֻһӿ,public.ýӿڿ԰Ҫڶְ֧Ȩ޵.һϵpublic ,ͻᱨ. publicƱļͬ(ϸִСд). Ȼһ뵥ԪҲûpublic. һԴļ.JAVAļпкܶ,ֻһPUBLIC

test3.javaԴļ: class test1{int i = 1;} class test2{ int i = 2; public static void main(string[] args) { system.out.println(main method); }}c:/javatest>javac test3.javac:/javatest>java test2main methodע:벻,עеtest2 Ϊû

:javaǴһpublicmainʼִе,(ʵmain߳),cǴmain()ʼִһ. ֻһpublicΪ˸װṩ. һpublic ֻܶΪļļ. ÿ

javaĹ,һjavaԴļֻһpublic,ļͬ,Ȼһһ.classļ

javaǴһpublicmainʼִе,(ʵmain߳),CǴmain()ʼִһ. ֻһpublicΪ˸װṩ. һpublic ֻܶΪļļ. ÿ뵥Ԫ(

javaǴһpublicmainʼִе,(ʵmain߳),CǴmain()ʼִһ. ֻһpublicΪ˸װṩ. һpublic ֻܶΪļļ. ÿ뵥Ԫ(ļ)ֻ

ֻдһpublicô˼,ÿ뵥ԪֻһĽӿ,ӿھpublic ʾ.һϵpublic class,Դıͻᱨ.ڱ׼javaдʱ,۴,һԴļֻһӿ(ӿҲҪдһԴļ),ΪJAVA,ÿ඼dzĽ,ÿ඼ҪдһԴļ.뵥Ԫûpublic ,ָûйĽӿ,ǿͬһڷʵ;public˼ڰڰɷ.Ȼ,ȴǿԵ.ϣܰﵽ

1ÿ뵥Ԫ(ļ)ֻһpublic .ô˼,ÿ뵥ԪֻһĽӿ,ӿھpublic ʾ.ԸҪ,ļṩܵpackage Ȩ޵.뵥Ԫϵpublic Ļ,ͻᱨ.2. public ֱ뵥Ԫļȫͬ,Сд.ԶWidget ,ļWidget.java,widget.java WIDGET.java.㲻,Ҫ.

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