Lect 10

What is the main purpose of the Flyweight pattern?

• Reduce processing time

• Increase encapsulation

• Minimize memory usage by sharing state

• Improve security

In the Flyweight pattern, what is shared between objects?

• Unique object identity

• Internal state

• External state

• Behavior logic

Which of the following would most likely use a Flyweight pattern?

• Compiler

• Banking application

• Text editor rendering characters

• Network server

What role does the Flyweight Factory play?

• Manages state transitions

• Stores the originator

• Creates and reuses flyweight instances

• Saves object history

What is an example of external state in Flyweight pattern?

• Font size shared by characters

• Color shared by multiple buttons

• Cursor position for characters

• ASCII value of character

Which of the following best describes a "flyweight"?

• A heavyweight object used for decoration

• An object that cannot be reused

• An object designed for immutability

• A shared object with intrinsic state

What is the primary use of the Iterator pattern?

• Modify elements of a collection

• Traverse a collection without exposing its structure

• Add new elements to a list

• Serialize a collection

Which method is typically found in an iterator?

• addElement()

• hasPrevious()

• hasNext()

• setElement()

The pattern is useful when:

• You want to filter data while iterating

• You want to hard-code traversal logic

• You don't need a collection

• The collection is immutable

In the example, what is being filtered using the iterator?

• Characters

• Users

• News articles

• Channels by language