JComponets.java

/*The controls we use in GUI applications will be Swing components. 
These components are defined in the javax.swing package and all have names
beginning with J*/

JFrame;
JComboBox;
JPanel;
JTextArea;
JButton;
JLabel;
JTextField;
JCheckBox;
JRadioButton;

//JList
//A list control is like a combo box with the list portion always visible. Multiple
//selections can be made with a list control.

JScroll;


An object called a layout manager determines how controls are arranged in a
frame. Some of the layout managers and their characteristics are:
FlowLayout Places controls in successive rows, fitting as
many as possible in a given row.
BorderLayout Places controls against any of the four frame
borders.
CardLayout Places controls on top of each other like a deck of
cards.
GridLayout Places controls within a specified rectangular
grid.
GridBagLayout Places controls with a specified very flexible
rectangular grid.
BoxLayout Arranges controls either in a row or column.
SpringLayout Arranges controls with positions defined by
sprints and struts.