declares a mypanel object of type JPanel. The statement
mypanel = new JYanel() ;
creates the mypanel object using the JPanel () class constructor.
Scrollpane
Scrollpanes can be used to provide a scrollable view for any component whose size can change
dynamically. Candidate components are text areas and lists, for example. A scrollpane will
include horizontal and vertical scrollbars.
There are a number of constructors in the javax, swing.JScrollPane class. The simplest
is JScrollPane(component). This will show scroUbars only if the contents of the component ...
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