bluej Flashcards

1
Q

instance

A

object

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2
Q

object bench

A

the area at the bottom part of the screen where the objects are

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3
Q

name of classes

A

Capital letters

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4
Q

name of objects

A

lower case letters

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5
Q

invoke

A

a method.

objects usually do something.

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6
Q

operations

A

methods

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7
Q

parameters

A

methods can have parameters to provide additional information for a task.
–defines a TASK and a NAME

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8
Q

header

A

viktig markering av var klasskoden börjar och heter.

the header of a method is called it’s SIGNATURE. it provides information needed to invoke that method.

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9
Q

data type

A

parameters have types.

the type defines what type of value a parameter can take.

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10
Q

comment

A

above method signature

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11
Q

multiple instances

A

many different objects can be created from the same class.

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12
Q

state

A

objects have a state.

– represented by storing values in fields.

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13
Q

object inspector

A

shows the state of an object

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14
Q

java refers to objects attributes as

A

fields

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15
Q

fields

A

are defined within a class

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16
Q

class

A

fields, methods, data types

17
Q

source code

A

determines the strukture and the behaviour of each of the objects in that class.

18
Q

results

A

methods may return information about an object via a return value.

19
Q

void

A

indicates that this method does not return any results.

20
Q

mellan första och sista { }

A

outer wrapping

21
Q

camel casing

A

ex. iPhone eBay

22
Q

instansvariabel

A

fält

23
Q

variabel

A

något som kan ändras.

namngett objekt med okänt värde.

24
Q

identifierare (variabelnamn)

A

allows the program to refer to the item from other places in the program by giving it a set name.

25
Q

metodsignatur

A

method name + parameters list

26
Q

Accessors

A

getters

27
Q

Mutators

A

setters

28
Q

konstruktor

A
  • har samma namn som klassen
  • returnerar inte ETT värde
  • publik åtklomstmodifierare
29
Q

hur ser man vad som är ett reserverat ord?

A

de har färgad text

30
Q

vilken färg har the outer wrapping?

A

grön

31
Q

varför ska man deklarera en variabel?

A

skapar plats att lagra data