Writing Classes in AP Computer Science A
What would be the first step when performing a selection sort on this list of integers {8, 4, 5, 1}?
Compare adjacent elements and swap them if they are in the wrong order.
Remove all duplicates from the array before starting any sorting operation.
Find the smallest element (1) and swap it with the first element (8).
Divide the array into two halves before sorting and merging them back together.
Which one of these statements correctly creates an object from the MyClass class in Java?
class MyClassObj = MyClass();
new MyClass();
MakeObject();
MyClass.createObject();
If you want to ensure that a segment of your class's method code runs at least once before checking its loop condition, which control structure should you use?
do-while loop
recursive method call
standard for loop
for-each loop
Which of the following isn't part of a class?
Variable declarations
Constructors
Methods
Interfaces
Which of the following is a potential social implication of computing systems?
Inability to communicate with people worldwide
Limited cultural mixing and globalization
Decreased reliance on technology in stock trading
Generation gap between younger and older generations
What is the term for a template in Java that defines a new data type and includes methods and attributes?
String
Variable
Array
Class
How does implementing a custom exception class enhance the error-handling mechanism provided by the default set of built-in types available in standard libraries found within the development environment, in the context of the learning objectives outlined in the course exam description and related materials?
This suggestion incorrectly presumes that the creation of personal variations somehow weakens the robustness and solidity inherent in the system and undermines its reliability and stability, instead of strengthening areas that might otherwise remain unaddressed or overlooked due to the generic nature of general-purpose offerings.
This simply adds unnecessary complexity, given the wide range of already catered-for common cases that are likely to be encountered, thereby negating the practical value of the addition.
This option indicates a misunderstanding of the purpose behind the ability to declare one's own exceptions, arguing that the practice is discouraged in favor of sticking to the status quo and relying solely on pre-defined solutions offered by the toolkit.
Creating tailored exceptions specifically for the needs of a particular piece of software enables finer granularity in controlling and reacting to various potential hiccups that may arise at runtime. This is especially relevant in contexts where rich user feedback is expected as part of UX/UI considerations, which factor into the overall quality of the end product delivered to consumers.

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When using insertion sort to organize data elements, what is typically done after selecting an element that is not in its correct position?
An auxiliary data structure temporarily holds all out-of-place elements until they can be inserted correctly.
The selected out-of-position element gets swapped with its adjacent neighbor until correctly placed.
The entire dataset gets re-ordered based on comparisons starting from that selected out-of-place element only.
The selected element is moved backwards to its correct place by comparing with previous elements one at a time.
What feature must be carefully implemented within classes involved in concurrent computing to prevent race conditions while maintaining high throughput?
declaring all methods as synchronized, even those not accessing shared resources
Marking every member variable as transient to avoid serialization issues
use of volatile keyword on every shared variable across threads
Synchronization blocks where shared resources are accessed or modified
What steps should take place when implementing deletion operation within singly-linked-list assuming access given node needs deletion only?
Temporarily store subsequent nodes before reconnecting them again once the node to be deleted is removed, which adds unnecessary complexity.
Replace the value of the targeted node with the last node in the list and delete the last node rather than affecting the middle of the chain, causing unwanted side-effects.
Update next pointer of the prior node to bypass the current node, thus effectively removing the chain.
Delete the node directly without altering other nodes' pointers, leading to potential memory leakage.