An object is a bundle of data (attributes) together with operations that act (operate) on:

Question

BlackTom AI · Accepted Answer

Objects encapsulate data known as attributes (also called fields or properties) and the operations (methods) that act on that data.

1. Relevant knowledge points and concepts
- In object-oriented programming (OOP), an object is a concrete instance combining state and behavior. State is represented by attributes (data members), and behavior is represented by methods (functions) that manipulate or access that state.
- Encapsulation is the principle that binds attributes and methods together, so methods operate on the object's own attributes.

2. Step-by-step reasoning
- An object is defined by what data it holds and what it can do. For example, a "Car" object might have attributes like color, speed, and fuel level, and methods like accelerate() and refuel().
- When a method like accelerate() runs, it reads and updates the object's attributes (e.g., increases speed, decreases fuel).
- Therefore, the operations associated with an object act on its attributes — the internal data that defines the object's state.

3. Intermediate steps (conceptual)
- Identify the two parts of an object: attributes (data) and operations (methods).
- Observe the relationship: methods take the attributes as inputs (implicitly via the object's context) and modify or return attribute values.
- Conclude that operations act on attributes to implement the object's behavior.

4. Why the correct answer is correct
- The phrase "bundle of data (attributes) together with operations that act (operate) on:" expects the direct object of the operations. In OOP, the correct target is the object's attributes (its data/state). Methods are specifically designed to manipulate those attributes.

5. Why other options are incorrect
- "those objects": Methods of an object operate on that object's attributes, not on "objects" in general; an object’s operations do not inherently act on other objects.
- "those classes": Classes are templates; objects are instances. Operations of an object act on its attributes, not on classes themselves.
- "those processes": Processes refer to execution contexts or OS-level entities, unrelated to the OOP definition of an object.

6. Conclusion
The correct choice is "those attributes," which matches the provided answer.

An object is a bundle of data (attributes) together with operations that act (operate) on:单项选择题

类似问题

Referring to an objects TYPE is the same as referring to its:

Classes have:

The relationship between a building and a locker classes in UTS library system is :

Objects have:

Consider the following Java code: What is the output of running:

The main difference between a field and a class variable is that:

An advantage of composition is the fact that we can sometimes reuse classes that we have already written, instead of having to design and write new classes.

Which of the following statements is incorrect ?

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