Section 1
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object in array + subscript
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Last updated
7 years ago
Date created
Mar 14, 2020
Cards (65)
Section 1
(50 cards)
object in array + subscript
array element + aka index integer
sealed class
cannot be extended
destructor
actions required when class instance is destroyed
overrides
takes precedence over another method, hiding original version
class client
program/class instantiates obj of another prewritten class
check digit
cal'd from formula, appended to #, check accuracy of other digits in the number
method declaration
method header, definition
method type
return type
base class
used as basis for inheritance
calling method
calls another method
public class mod
access to class not limited
recursive method
a method that calls itself
subclass
derived class/ child class
nested loop
contains outer loop & inner loop, use "each" to refer to inner loop task
value param
in header indicate param type& name, method recvs copy of value passed to it
class header
describes class, class 'legal ident'
overloading
one term, many meanings; multi methods w/ same name but different param list
accumulated (in loop)
processed individual records added into final sum
instantiate class
created obj
output param
need not contain original value, method recvs params addr
hash code
# uniquely indent an obj
protected class mood
access limited and to any class derived from the class
nonstatic methods
requires obj reference
invoking obj
obj referenced by 'this'
inheritance
app of general category applied to more specific obj
is-a relationship
obj class relationship
method signature
name & param list
abstract class
cannot create concrete objs but can inherit from
step value
A number you use to increase a loop control variable on each pass through a loop, especially in for loop.
actual params
arguments within a method call
reference param
param must have assigned value before use in method call, method recvs params addr
abstract method
A method that has no implementation, must provide a body (implementation) for it
while loop
usually followed by Boolean & execute code in body continuously as long as condition is True; should include statement eventually evaluateing as False, avoiding infinite loop; could be definite or indefinite; checks value at top of loop
class access mod
describes access to a class, public or protected
param array
local array within method header
Multiple inheritance
inherit from more than one class
fields
instance vars w/in class
ambiguous method
over loaded method, compiler doesn't know which one to use
sentinal value
supplied by user to stop the loop
for loop
used for definite loops, within parentheses three sections separated by exactly two semicolons for(x=1; x<= LIMIT; ++x), (starting value; test condition; expression alters loop cntrl var)
data passed by reference
method recvs mem addr of arg passed to it
instance var
data compos, exist separately for each instantiation
do loop
checks value at bottom of loop after 1st iteration
static method
called w/o referring to obj
method
statements carry out task
black box
module you can use without knowing internal workings
obj state
set of contents of its fields
derived class/ extended class
inherited from base class
implementation hiding
keeping method ops details hidden
superclass
base class/ parent class
Section 2
(15 cards)