Flashcards

Quick study sessions to strengthen memory and retain key concepts.

Flashcard Study

Java: Fields and State

Front

What distinguishes fields from local variables in Java?

Fields are part of an object's state, local variables are temporary. Fields are declared within a class and…

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Java: Fields and State

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What are the consequences of poor field design in Java?

Leads to inflexible and error-prone code. Frame the concept in practical terms so you can explain it during…

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Flashcard Study

Java: Fields and State

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How does state affect object behavior in Java?

State influences how methods operate. Frame the concept in practical terms so you can explain it during interview…

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Flashcard Study

Java: Fields and State

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Why should fields in a Java class typically be private?

Private fields enhance encapsulation. Frame the concept in practical terms so you can explain it during interview discussion.…

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Flashcard Study

Java: Fields and State

Front

How do you decide where a field belongs?

Put the data on the object where that fact naturally lives in the domain. A product's stock belongs…

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Java: Encapsulation

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How does encapsulation contribute to a robust e-commerce application?

Encapsulation ensures that the business logic and data integrity are maintained within the application. Encapsulation hides the internal…

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Flashcard Study

Java: Encapsulation

Front

Why should fields in a Java class be private?

Fields should be private to control access and protect the object's state. Making fields private ensures that they…

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Flashcard Study

Java: Encapsulation

Front

How would you explain a common beginner misconception about hiding fields in an interview?

Beginners often think private fields alone ensure safe object states. While private fields are a step towards encapsulation,…

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Flashcard Study

Java: Encapsulation

Front

Why should fields often be private in Java classes?

Private fields ensure data integrity by preventing unauthorized access. By declaring fields as private, Java classes limit direct…

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Flashcard Study

Java: Encapsulation

Front

What are the consequences of breaking encapsulation?

Breaking encapsulation can lead to unreliable or insecure applications. When encapsulation is broken, an object's internal state can…

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