Using Objects in AP Computer Science A
If a student-designed software application systematically analyzes social media trends and hashtags to identify key public interest topics, which void method would be most critical for continual update without returning any data?
public String getCurrentTrends()
private void logTrendData()
public boolean checkForNewHashtags()
public void updateTrendAnalysis()
What advantage does calling a void method have when writing code that performs repetitive tasks within different parts of a program?
It allows values to be returned so they can be used multiple times throughout the program.
It enables complex calculations that require intermediate results storage before proceeding further.
It promotes code reuse, reducing duplication and making maintenance easier.
It directly passes data between classes without needing object instantiation for access.
What benefit does encapsulating calculations within their own non-void returning methods provide when building complex systems?
Modularization enables direct manipulation of data fields across classes
Optimization reduces memory overhead associated with local variable storage
Minimization decreases the overall number of classes implemented within a system
Abstraction facilitates understanding system components independently
If a class Game
has a void method initialize()
that sets up the game environment, which of the following correctly demonstrates calling this method from within a constructor in a subclass BoardGame
?
initialize()
Game.initialize()
BoardGame.initialize()
super.initialize()
In a Java program, what is the consequence of calling a void method within a System.out.println statement?
The output will be an empty string as the method returns no information to print.
It prints the memory address of where the method is stored in the program.
The output will be "null" since void methods do not return any value.
The code will not compile because void methods do not return a value.
Which of the following statements correctly calls the setSpecies method for a Flower object named myFlower?
myFlower.setSpecies("Rose");
Flower.setSpecies("Rose");
setSpecies(myFlower, "Rose");
myFlower.species = "Rose";
What statement can be added at the beginning of a method to ensure it is only called internally by other methods within the same class?
public
protected
private
final

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When dealing with large datasets that frequently undergoes numerous search operations which data structure should ideally be used to ensure performance efficiency?
LinkedList
HashSet
TreeMap
ArrayList
What kind of sophisticated void method could intelligently allocate computational tasks among multiple processors within an educational parallel computing simulator?
Invalid Twos
public Map<Processor,Integer> getTaskDistributionMap()
public void distributeTasksAmongProcessors()
Invalid Threes
Which of the following statements correctly calls the setLength method for a Rectangle object named myRectangle?
myRectangle.setLength(10);
myRectangle.length = 10;
setLength(myRectangle, 10);
Rectangle.setLength(10);