Java Swing

Question 1

What kind of structure is Swing written in?

Answer 1

Container

Question 2

What is Swing?

Answer 2

A GUI Widget Toolkit

Question 3

What is AWT?

Answer 3

Abstract Window toolkit

Question 4

Weight of AWT vs Swing?

Answer 4

Heavy vs Light-weight

Question 5

Look and feel of AWT vs Swing?

Answer 5

Native vs Pluggable

Question 6

MVC support for AWT vs Swing?

Answer 6

no support vs support

Question 7

Component platform dependence AWT vs Swing

Answer 7

platform dependent vs. platform independence

Question 8

Packages AWT vs. Swing

Answer 8

java.awt package vs javax.swing

Question 9

Speed AWT vs Swing

Answer 9

Slower vs Faster

Question 10

Event-Driven Programs

Answer 10

Some objects generate events and other objects respond to them

Question 11

What kind of pattern is a Menu?

Answer 11

Composite, Menu made up of menu items

Question 12

Absolute Layout

Answer 12

Graph Paper approach have to put everything on with coordinates

Question 13

Example of Absolute Layout

Answer 13

Null Layout

Question 14

Relative Layout

Answer 14

Components positioned relative to each other rather than absolute. Also field expands buttons and fields adjust location

Question 15

Pros and Con of Relative Layout

Answer 15

pro- better than absolute

con - fairly inflexible

Question 16

Example of Relative Layout

Answer 16

Flow Layout

Question 17

Template Layout

Answer 17

Divide the container into sections and place one component in each section

Question 18

Pros and Cons of Template Layout

Answer 18

Pro - easy to use

Con - the right template may not exist

Question 19

Examples of Template Layout (3)

Answer 19

Grid Layout
Box Layout
Border Layout

Question 20

Box Layout

Answer 20

One row or column only

Question 21

Struct

Answer 21

One dimensional filler that is fixed

Question 22

Rigid Areas

Answer 22

2 dimensional filler fixed

Question 23

Glue

Answer 23

1 dimensional filler, variable in size

Question 24

Border Layout

Answer 24

North south east west center

Question 25

Example of event generators

Answer 25

Mouse clicks, timing signals, key presses

Question 26

Event Generators

Answer 26

classes that can generate events of different kids

Question 27

Event Receivers

Answer 27

Classes that respond to events of different kinds

Question 28

Discribe the event design

Answer 28

An event is generated by an EventGenerator, then the event is posted to the EventQueue, finally, the EventReceiver will respond to the event once the EventQuenue fires it to the reciever

Question 29

Event Queue responsibility

Answer 29

It is a central repository of events that ensures that everything happens in the right order

Question 30

Event Dispatch Thread

Answer 30

Events dispatched here, can call invokeAnWait, or invoke Later

Question 31

JButton

Answer 31

implemenets ActionListener | actionPreformed()

Question 32

JCheckBox

Answer 32

Can select multiple items | ItemListener

Question 33

JRadioButton

Answer 33

ButtonGroup deselects box when new one is selected | ItemListener

Question 34

TextComponenets

Answer 34

DocumentEvent responds to changes in model | actionEvent when enter is pressed

Question 35

Examples of TextComponenets

Answer 35

JTextField | JTextArea

Question 36

JList

Answer 36

No support of scrolling Lists things you can click on ListSelectionListener

Question 37

JComboBox

Answer 37

Combo of JTextField and JList Item or ActionLIstener can select but from a drop down, and can also type in new responses

Question 38

JSlider

Answer 38

ChangeEvent ChangeListener stateChanged

Question 39

Hierarchical Template Layout

Answer 39

subdivide sections in a template layout using a Composite pattern

Question 40

Pros and cons of Hierarchial Template Layout

Answer 40

Pro - platform independent and flexible | Con - difficult to get used to

Question 41

Scrollable Componenets

Answer 41

Controls how much can see from the viewport

Question 42

Docking Toolbars

Answer 42

Container that can be responsitioned, JToolBar

Question 43

Borders

Answer 43

Visually group components, created using BorderFactory

Question 44

Constrained Template Layout

Answer 44

Add constraints to any template | GridBagLayout

Question 45

Layered Layout

Answer 45

Different layouts on top of each other