Writing Classes in AP Computer Science A

private int num = 5;

There is no such modifier that allows this kind of access for variables.

int num = 5;

protected int num = 5;

Acceptance Testing

Unit Testing

Integration Testing

System Testing

Insertion sort

Linear search

Binary search

Merge sort

private final

public transient

volatile const

final static

Stack

PriorityQueue

Vector

ArrayList

One that is declared within a class but not within a method block

Local one that is declared within a method block

Global one that is declared outside of any class

Parameter one that is passed into a method

Private method m2() cannot be called by any other methods because it is private.

Method m1() needs an object reference to call method m2(), even though it's in the same class.

Method m1() must also be private if it wants to call any private methods like m2().

Method m1() has access to call method m2() because both are members of the same class.

The public field since its accessibility is supposed to be broadest of all

None of the fields remain accessible as the entire object is no longer in memory

The static field because it is pertained to the class and not to individual instances

The protected field as it may still be in use by other objects derived from this class

When implementing interfaces that require multiple inheritances.

When methods from the superclass need to be overridden extensively.

When wanting to use some aspects of another class without establishing a subtype relationship.

When there is a clear is-a relationship between the objects.

private final

public final

protected final

public static