单项选择题
A.p.setWeight（420）；
B.p.changePayload（420）；
C.p = new Payload（420）；
D.Payload.setWeight（420）；
E.p = Payload.setWeight（420）；
单项选择题 Which statement is true about the objects referenced by snoog， snooch， and booch immediately after line 23 executes？（）
多项选择题 Which three code fragments， added individually at line 29， produce the output 100？（）
单项选择题 Given classes defined in two different files： What is required at line 5 in class SomeApp to use the process method of BitUtils？（）
