CM Unit 3

Question 1

GUI

Answer 1

Graphical User Interface

Question 2

Layout

Answer 2

Specifies how components will be added to the panel.

Examples: Flow Layout, Border Layout, Grid Layout.

Question 3

Listener

Answer 3

Handles interface events through the action performed method.

Question 4

Swing GUI Components

Answer 4

JButton
JLabel
JTextField

Question 5

Double.parseDouble

Answer 5

Convert text to a double

Question 6

Integer.parseInt

Answer 6

Convert text to an integer

Question 7

Switch

Answer 7

Switch(x)
{
Case1: …break;
default;
}

Question 8

JButton syntax and method and constructor

Answer 8

JButton Button = new JButton(“text”)
add ActionListener(new Listener());

Question 9

JLabel syntax and method and constructor

Answer 9

JLabel label = new JLabel(“text”)
label.settext();

Question 10

JTextFeild syntax and method and constructor

Answer 10

JTextField box = new JTextField(“Text”, width);
box.getText();

Question 11

The Action Listener Interface and how to create listeners

Answer 11

Private Class Listener implements Action Listener
{
public void action performed(Action Event e)
{
…
}
}

Question 12

Random number formula and other

Answer 12

Double D = Math.random() * Range of Values + Lowest

[0,6) is 6 numbers
[0,6] is 7 numbers.

Inclusive is hard bracket. Exclusive is soft bracket.