单项选择题
Given： What is the result？（）
A.Compilation fails. B.Cannot add Toppings C.The code runs with no output. D.A NullPointerException is thrown in Line 4.
A team of programmers is involved in reviewing a propos...
A team of programmers is involved in reviewing a proposed design for a new utility class. After some discussion， they realize that the current design allows other classes to access methods in the utility class that should be accessible only to methods within the utility class itself. What design issue has the team discovered？（）
A.Tight coupling B.Low cohesion C.High cohesion D.Loose coupling E.Weak encapsulation F.Strong encapsulation
Given： Which two code fragments， inserted independentl...
多项选择题
Given： Which two code fragments， inserted independently at line 13， will compile？（）
A.super（name， baseSalary）； B.this.commission = commission； C.super（）； this.commission = commission； D.this.commission = commission； super（）； E.super（name， baseSalary）； this.commission = commission；
Given： What are four valid examples of polymorphic met...
Given： What are four valid examples of polymorphic method calls？（）
A.x.a2（）； B.z.a2（）； C.z.c1（）； D.z.a1（）； E.y.c1（）； F.x.a1（）；
