I have no idea ____ the journalist has gone.A. whetherB. whereC. whenD. that这道选择题的答案是选择B(where),个人感觉选择A(whether)、C(when)和D(that)也可以,烦请老师和网友帮助剖析一下解答此题的思路。非常感谢!
The tune ( ) method accepts an Instrument reference. However, in Wind.main() the tune() method is handed a Wind reference. Given that Java is particular about type checking, it seems strange that a method that accepts one type will readily accept another type, until you realize that a Wind object is...