????????????
???????????? ???????[ 2015/3/31 11:50:54 ] ????????Java ??????? ???
??????java??????????????????????У???????????????6??????????????????????????????????????????????????????????????
????1.??????Dependence??????????????
?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????java?е????????????????A???????????B????????B???????A????????????????е??????????????????????á????????????У?People????????Book???Food??Book???Food??????????з?????????????????People???е??
??????????????
????public class People{
????//Book???read???????β?
????public void read(Book book){
????System.out.println(“????????”+book.getName());
????}
????}
????2.??????Association??
?????????????
????????????
?????????????????????????????????????????????????Щ??????????????????????????????????????????????????????????????????????????java?У?????????????????A???????????B????????B???????A?????????????????????????A???????????B????????????????B??????????A????????????
??????????????
????public class Son{
????//????????????????????????????????и??
????Father father=new Father();
????public void getGift(){
????System.out.println(“??”+father.getName()+”???????”);
????}
????}
????public class Father{
????Son son=new Son();
????public void giveGift(){
????System.out.println(“???”+son.getName()+“????”);
????}
????}
??????
???·???
??????????????????
2023/3/23 14:23:39???д?ò??????????
2023/3/22 16:17:39????????????????????Щ??
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2021/5/28 17:25:47??????APP??????????
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