改善代码质量之内联函数

一个函数的本体与名称应该清楚易懂

int getRating(){
      return (moreThenFiveLateDeliveries()) ? 2 :1;    
}

boolean moreThenFiveLateDeliveries(){
      return _numberOfLateDeliveries > 5;     
}

转换为

int getRating(){
      return (_numberOfLatedeliveries > 5) ? 2 :1;    
}