Quick study sessions to strengthen memory and retain key concepts.
How can weak field selection impact class design?
It can lead to inflexible and confusing class design. Choosing inappropriate fields for a class can result in…
View Card →Why do fields represent an object's state?
Fields hold the data that defines an object's state. Fields in a class are variables that hold the…
View Card →Why could a 'Customer' class have private fields but public methods?
To protect data while allowing controlled interaction. Private fields ensure that the internal state is not directly altered…
View Card →What are the design consequences of using mutable fields?
Mutable fields can lead to unpredictable state changes, complicating debugging. When fields are mutable, their values can change…
View Card →Why is encapsulation important in Java classes?
Encapsulation protects object integrity by controlling access to its data. Encapsulation involves hiding an object's fields and requiring…
View Card →How can final fields affect class design?
Final fields make a class's state immutable, enhancing consistency. Declaring fields as final ensures they can only be…
View Card →How would you explain a common mistake when setting fields in a Java class in an interview?
Making fields public can expose internal state, leading to data integrity issues. Public fields allow unrestricted access, potentially…
View Card →How does object state influence method execution?
Object state determines how methods perform and interact with data. The state of an object affects its behavior…
View Card →Why should fields generally be private in Java?
Private fields encapsulate data, preventing unauthorized access and modification. Encapsulation hides an object's internal state and requires external…
View Card →Why can weak field modeling lead to design issues?
Weak field modeling can obscure the object’s true purpose and lead to bugs. Poor field choices can result…
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