public class CreditCard { private String cardlD； private Integer limit； public String ownerName； public void setCardlnformation（String cardlD， String ownerName， 28. Integer limit） { this.cardlD = cardlD； this.ownerName = ownerName； this.limit = limit； } } Which is true？（） A、 The class is fully encapsulated.B、 The code demonstrates polymorphism.C、 The ownerName variable breaks encapsulation.D、 The cardlD and limit variables break polymorphism.E、 The setCardlnformation method breaks encapsulation.
public class CreditCard { private String cardlD； private Integer limit； public String ownerName； public void setCardlnformation（String cardlD， String ownerName， 28. Integer limit） { this.cardlD = cardlD； this.ownerName = ownerName； this.limit = limit； } } Which is true？（）
- A、 The class is fully encapsulated.
- B、 The code demonstrates polymorphism.
- C、 The ownerName variable breaks encapsulation.
- D、 The cardlD and limit variables break polymorphism.
- E、 The setCardlnformation method breaks encapsulation.
相关考题：
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interface Data { public void load（）； } abstract class Info { public abstract void load（）； } Which class correctly uses the Data interface and Info class？（） A、 public class Employee extends Info implements Data { public void load（） { /*do something*/ } }B、 public class Employee implements Info extends Data { public void load（） { /*do something*/ } }C、 public class Employee extends Info implements Data { public void load（） { /*do something */ } public void Info.load（） { /*do something*/ } }D、 public class Employee implements Info extends Data { public void Data.load（） { /*dsomething */ } public void load（） { /*do something */ } }E、 public class Employee implements Info extends Data { public void load（） { /*do something */ } public void Info.load（）{ /*do something*/ } }F、 public class Employee extends Info implements Data{ public void Data.load（） { /*do something*/ } public void Info.load（） { /*do something*/ } }
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单选题public class Plant { private String name； public Plant（String name） { this.name = name； } public String getName（） { return name； } } public class Tree extends Plant { public void growFruit（） { } public void dropLeaves（） { } } Which is true？（）A The code will compile without changes.B The code will compile if public Tree（） { Plant（）； } is added to the Tree class.C The code will compile if public Plant（） { Tree（）； } is added to the Plant class.D The code will compile if public Plant（） { this（”fern”）； } is added to the Plant class.E The code will compile if public Plant（） { Plant（”fern”）； } is added to the Plant class.
单选题What produces a compiler error？（）A class A { public A（int x） {} }B class A {} class B extends A { B（） {} }C class A { A（） {} } class B { public B（） {} }D class Z { public Z（int） {} } class A extends Z {}