Create
an applet with a text field and three buttons. When you press each button, make
some different text appear in the text field.
Add
a check box to the applet created in Exercise 1, capture the event, and insert
different text into the text field.
Create
an applet and add all the components that cause
action( )
to be called, then capture their events and display an appropriate message for
each inside a text field.
Add
to Exercise 3 the components that can be used only with events detected by
handleEvent( ).
Override
handleEvent( )
and display appropriate messages for each inside a text field.
Create
an applet with a
Button
and a
TextField.
Write a
handleEvent( )
so that if the button has the focus, characters typed into it will appear in the
TextField.
Create
an application and add to the main frame all the components described in this
chapter, including menus and a dialog box.
Modify
TextNew.java
so that the characters in
t2
retain the original case that they were typed in, instead of automatically
being forced to upper case.
Modify
CardLayout1.java
so that it uses the Java 1.1 event model.
Add
Frog.class
to the manifest file shown in this chapter and run
jar
to create a JAR file containing both
Frog
and
BangBean.
Now either download and install the BDK from Sun or use your own Beans-enabled
program builder tool and add the JAR file to your environment so you can test
the two Beans.
Create
your own Java Bean called
Valve
that
contains two properties: a Boolean called “on” and an integer
called “level.” Create a manifest file, use
jar
to package your Bean, then load it into the beanbox or into your own
Beans-enabled program builder tool so that you can test it.
(Somewhat
challenging) Change
Menus.java
so that it handles cascading menus.