Which of the following Java method headers is the correct one for an accessor method for an attribute called name?

Question

BlackTom AI · Accepted Answer

When designing a Java accessor (getter) for an attribute named name, we need a method that returns the type of the attribute and takes no parameters.
Option 1 proposes public void setName(String theName). This resembles a mutator (setter) because it returns void and accepts a parameter to assign a new value; however, it uses the name getName and has a parameter, which is inconsistent with the conventional getter pattern.
Option 2 shows public String getName(String theName). Here, the method returns a String, but it incorrectly accepts a parameter. Accessor methods typically do not require arguments since they just return the current value of the attribute, so taking theName as a parameter is inappropriate.
Option 3 is written as public void setName(). Note the use of a setter-like signature with no parameter and a void return type; while this resembles a mutator, it neither returns a value nor accepts a new value to set, making it unsuitable as a standard accessor for a name attribute.
Option 4 presents public String getName(). This aligns with the expected pattern: a getter for a String-typed attribute named name, returning the value without any arguments. The naming getName and the return type String correctly reflect an accessor.
In summary, the key criteria for a proper accessor are: the method name starts with get, it returns the attribute’s type (String in this case), and it accepts no parameters. Deviations from this pattern in the other options introduce incorrect behavior or signatures for an accessor.

Which of the following Java method headers is the correct one for an accessor method for an attribute called name? 单项选择题

类似问题

What is a Java accessor method?

Consider the following class: class Pet: def init(self, name): self._name = name def getName(self): ____________________ What line of code should be placed in the blank to complete the getName accessor method that is supposed to return the pet's name?

Which of the following Java method headers is the correct one for an accessor method for an attribute called name?

In Java, what return type does an accessor method never have?

What is a Java accessor method?

Consider the following class: Suppose we want to write a comparator for Boxer that uses every attribute. Keeping in mind camelCase naming conventions, fill in the missing code to implement the remaining accessor method: public [Fill in the blank], () { return [Fill in the blank], }

In Java, what return type does an accessor method never have?

What is another name for a Java accessor method?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单