package com.loulijun.chapter1; 
  
public interface Itutu { 
  //身高 
  void setShengao(double height); 
  double getShengao(); 
  //体重 
  void setTizhong(double weight); 
  double getTizhong(); 
  //吃饭 
  boolean chiFan(boolean hungry); 
  //上网 
  boolean shangWang(boolean silly); 
} 

package com.loulijun.chapter1; 
  
/** 
 * BO：Bussiness Object，业务对象 
 * 负责用户的属性 
 * @author Administrator 
 * 
 */ 
public interface ItutuBO { 
  //身高 
  void setShengao(double height); 
  double getShengao(); 
  //体重 
  void setTizhong(double weight); 
  double getTizhong(); 
} 

package com.loulijun.chapter1; 
/** 
 * BL:Business Logic,业务逻辑 
 * 负责用户的行为 
 * @author Administrator 
 * 
 */ 
public interface ItutuBL { 
  //吃饭 
  boolean chiFan(boolean hungry); 
  //上网 
  boolean shangWang(boolean silly); 
} 

package com.loulijun.chapter1; 
  
public class TutuBO implements ItutuBO { 
  private double height; 
  private double weight; 
  @Override 
  public double getShengao() {     
    return height; 
  } 
  
  @Override 
  public double getTizhong() { 
    return weight; 
  } 
  
  @Override 
  public void setShengao(double height) { 
    this.height = height; 
  } 
  
  @Override 
  public void setTizhong(double weight) { 
    this.weight = weight; 
  } 
  
} 

package com.loulijun.chapter1; 
  
public class TutuBL implements ItutuBL { 
  
  @Override 
  public boolean chiFan(boolean hungry) { 
    if(hungry) 
    { 
      System.out.println("去吃火锅..."); 
      return true; 
    } 
    return false; 
  } 
  
  @Override 
  public boolean shangWang(boolean silly) { 
    if(silly) 
    { 
      System.out.println("好无聊啊，上会网..."); 
      return true; 
    } 
    return false; 
  } 
  
}