单项选择题
A.s=14
B.s=16
C.s=10
D.Compilation fails.
E.An exception is thrown at runtime.
多项选择题 What two must the programmer do to correct the compilation errors？（）
单项选择题 Ateamofprogrammersisinvolvedinreviewingaproposeddesignforanewutilityclass，Aftersomediscussion，theyrealizethatthecurrentdesignallowsotherclassestoaccessmethodsintheutilityclassthatshouldbeaccessibleonlytomethodswithintheutilityclassitself.Whatdesignissuehastheteamdiscovered？（）
多项选择题 What are four valid examples of polymorphic method calls？（）
