Java类之间的关系图_动力节点Java学院整理

public class People{ 
  //Book作为read方法的形参 
   public void read(Book book){ 
    System.out.println(“读的书是”+book.getName()); 
  } 
} 

public class Son{ 
  //关联关系中作为成员变量的类一般会在类中赋值 
  Father father = new Father(); 
  public void getGift(){ 
    System.out.println(“从”+father.getName()+”获得礼物”); 
  } 
} 
 
public class Father{ 
  Son son = new Son(); 
  public void giveGift(){ 
    System.out.println(“送给”+son.getName()+“礼物”); 
  } 
} 

public class People{ 
  Car car; 
  House house;  
  //聚合关系中作为成员变量的类一般使用set方法赋值 
   public void setCar(Car car){ 
    This.car = car; 
  } 
  public void setHouse(House house){ 
    This.house = house; 
  } 
 
  public void driver(){ 
    System.out.println(“车的型号：”+car.getType()); 
  } 
  public void sleep(){ 
    System.out.println(“我在房子里睡觉：”+house.getAddress()); 
  } 
} 

Public class People{ 
  Soul soul; 
  Body body;  
  //组合关系中的成员变量一般会在构造方法中赋值 
   Public People(Soul soul, Body body){  
    This.soul = soul; 
    This.body = body; 
  } 
 
  Public void study(){ 
    System.out.println(“学习要用灵魂”+soul.getName()); 
  } 
  Public void eat(){ 
    System.out.println(“吃饭用身体：”+body.getName()); 
  } 
}