????????????

??????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()+“????”);
????}
????}