A class design requires that a member variable cannot be accessible directly outside the class. Which modifier should be used to obtain the access control？（） A、 publicB、 no modifierC、 protectedD、 private
A class design requires that a member variable cannot be accessible directly outside the class. Which modifier should be used to obtain the access control？（）
- A、 public
- B、 no modifier
- C、 protected
- D、 private
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A class design requires that a member variable should be accessible only by same package, which modifer word should be used? A.protectedB.publicC.no modiferD.private
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多选题public class Team extends java.util.LinkedList { public void addPlayer（Player p） { add（p）； } public void compete（Team opponent） { /* more code here */ } } class Player { /* more code here */ } Which two are true？（）AThis code will compile.BThis code demonstrates proper design of an is-a relationship.CThis code demonstrates proper design of a has-a relationship.DA Java programmer using the Team class could remove Player objects from a Team object.
单选题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？（）ATight couplingBLow cohesionCHigh cohesionDLoose couplingEWeak encapsulation
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单选题You are creating a Windows Forms Application by using the .NET Framework 3.5.You plan to design a control for the application.You need to ensure that the control meets the following requirements： （1）Contains the DataGridView， BindingSource， and BindingNavigator controls. （2）Exposes the properties of the BindingSource control. （3）Protects the properties of the DataGridView and BindingNavigator controls. What sholud you do？（）AExtend the Control class.BExtend the ContainerControl class.CCreate protected accesses for each control property.DCreate public accesses for the properties of the BindingSource control.
单选题A team of programmers is reviewing a proposed API for a new utility class. After some discussion,they realize that they can reduce the number of methods in the API without losing any functionality.If they implement the new design, which two OO principles will they be promoting?（）ALooser couplingBTighter couplingCLower cohesionDHigher cohesionEWeaker encapsulationFStronger encapsulation
单选题A company that makes Computer Assisted Design (CAD) software has, within its application, some utility classes that are used to perform 3D rendering tasks. The company's chief scientist has just improved the performance of one of the utility classes' key rendering algorithms, and has assigned a programmer to replace the old algorithm with the new algorithm. When the programmer begins researching the utility classes, she is happy to discover that the algorithm to be replaced exists in only one class. The programmer reviews that class's API, and replaces the old algorithm with the new algorithm, being careful that her changes adhere strictly to the class's API. Once testing has begun, the programmer discovers that other classes that use the class she changed are no longer working properly. What design flaw is most likely the cause of these new bugs?（）AInheritanceBTight couplingCLow cohesionDHigh cohesionELoose couplingFObject immutability