Using Objects in AP Computer Science A

An actual instance of an object.

A blueprint for a house.

A template that defines what an object is like and what the object can do.

A reference type that combines primitive and reference data types.

Allowing direct access modification of class fields from outside methods.

Using getter methods to retrieve field values.

Implementing setter methods that validate data before modifying fields.

Wrapping related variables and methods together into single units as classes.

Problems where maintaining sorted data elements is not essential

Small-scale applications where execution time differences are negligible

Problems involving large datasets where performance significantly degrades with quadratic complexity

Situations requiring precise control over low-level memory management

Recursion provides a way to solve complex problems by breaking them down into simpler subproblems.

Recursion simplifies debugging by reducing the number of lines in code.

Recursion eliminates the need for data storage in a program.

Recursion speeds up every type of algorithm regardless of context.

do-while loop

while loop

if-else statement

for loop

LinkedList

Stack

ArrayList

Array

instanceof checks while casting an object to a subclass to ensure compatibility.

It provides a mechanism for executing static methods based on their fully-qualified name.

It allows for the conversion of a string representation back to its respective type.

It checks the equality of two distinct objects based on their shared characteristics.

When thrown, exceptions run through all remaining lines of code in sequence until they reach end-of-method then propagate upwards if uncaught.

Execution of the method stops immediately, and control transfers to its nearest enclosing try-catch block with a matching catch clause if one exists.

Throwing an exception causes only conditional branching within the same method unless specifically rethrown outside of it.

Exception throwing has no impact on method execution unless explicitly caught within three lines following its declaration or instantiation point.

The method signature boolean equal(Object obj)

The method signature boolean equals(Object obj)

The method signature void equals(Object obj)

The method signature int equals(Object obj)

Compilation time

Number of variables

Big O notation

Lines of code