java静态非静态不同包之间调用_java – 非静态方法不能从静态上下文中引用

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Non-static variable cannot be referenced from a static context                                    13个

下面的代码出现在我正在尝试创建的包的主类中.它从名为Journey的帮助程序类引用对象和方法.在星号标记的行中调用journeyCost方法时,我得到“非静态方法无法从静态上下文引用”错误.这使我感到困惑,因为我认为在第二行创建的Journey对象“thisJourney”构成了类的实例,因此意味着上下文不是静态的.谢谢,Seany.

public boolean journey(int date, int time, int busNumber, int journeyType){

Journey thisJourney = new Journey(date, time, busNumber, journeyType);

if (thisJourney.isInSequence(date, time) == false)

{

return false;

}

else

{

Journey.updateCurrentCharges(date);

thisJourney.costOfJourney = Journey.journeyCost(thisJourney);*****

Journey.dayCharge = Journey.dayCharge + thisJourney.costOfJourney;

Journey.weekCharge = Journey.weekCharge + thisJourney.costOfJourney;

Journey.monthCharge = Journey.monthCharge + thisJourney.costOfJourney;

Balance = Balance - thisJourney.costOfJourney;

jArray.add(thisJourney);

}

}