Quick study sessions to strengthen memory and retain key concepts.
Why does reference vs copied data matter?
Reference vs copied data determines if objects share the same data or have independent copies. Understanding the difference…
View Card →How do constructors help with object creation?
Constructors initialize new objects with default or specified values. Constructors are special methods used to initialize objects. They…
View Card →How would you explain an object reference in a Java interview?
An object reference in Java is a variable that holds the memory address of an object. In Java,…
View Card →What does an object reference give you?
A link from one object to another object in the model. A `CartItem` can point to a `Product`…
View Card →How can awkward interaction patterns be identified?
Look for direct field access and duplicated logic. Awkward interaction patterns can often be spotted by looking for…
View Card →What is method overloading?
Providing multiple methods with the same name but different parameters. Method overloading allows a class to have multiple…
View Card →Why encapsulate fields in a class?
Encapsulation protects the internal state. Encapsulation ensures that fields within a class are accessible only through methods, protecting…
View Card →Why avoid `CartItem` duplicating `Product` fields?
It leads to redundancy and maintenance problems. Duplicating fields like `name` and `price` in `CartItem` creates redundancy, making…
View Card →How does a constructor aid in object creation?
Constructors initialize objects with specific states. A constructor sets up a new object with initial values, ensuring it's…
View Card →Why does a method in object interaction matter in this design?
Methods enable controlled data exchange and actions. Methods act as the interface through which objects interact, allowing them…
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