15 Questions
What is a key property that sets constructors apart from normal methods in Java?
Constructors have the same name as the class
In Java, what does the toString() method do?
Returns a string representation of an object
How are constructors different from other methods in Java classes?
Constructors are used to initialize objects when they are created, while other methods are used to perform specific tasks
How does Java process arguments and variable assignments for primitive types?
By value
What is the significance of the keyword 'private' in the Java class provided?
It restricts access to the member only within the class it is declared
How can you avoid the ambiguity of variable shadowing in Java?
Prefixing global variables with 'this'
What happens when objects are destroyed in Java?
Memory consumed by the objects is freed up
What does a solid (filled) diamond shape attached to a whole class represent in UML?
Composition relationship
Which type of relationship exists between objects in a Composition?
Strong and permanent
How can you differentiate between Composition and Aggregation in UML diagrams?
Composition represents a strong relationship, while Aggregation represents a weak relationship
Why is it significant for objects in a Composition to have a strong relationship?
To ensure data encapsulation and information hiding
What defines a composition in object-oriented programming?
An association where one object owns another object, and the owned object cannot exist without the owner object
In the context of object-oriented programming, what characterizes an aggregation?
Both objects can exist independently
What is polymorphism in Java?
The ability of a Java object to take the shape of objects belonging to their parent classes
What is the instanceof operator in Java used for?
To check if an object belongs to a specific class
Recap of Object-Oriented programming concepts such as Objects, Properties, and Interfaces. Exploring real-world problems in terms of Objects and their features. Discussion on the re-usability of software components in Object-Oriented programming.
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