Applet 类从 Container 类继承了许多事件处理方法。Container 类定义了几个方法，例如：processKeyEvent() 和processMouseEvent()，用来处理特别类型的事件，还有一个捕获所有事件的方法叫做 processEvent。
为了响应一个事件，Applet 必须重写合适的事件处理方法。
ExampleEventHandling.java 文件代码：
import
java
.
awt
.
event
.
MouseListener
;
import
java
.
awt
.
event
.
MouseEvent
;
import
java
.
applet
.
Applet
;
import
java
.
awt
.
Graphics
;
public
class
ExampleEventHandling
extends
Applet
implements
MouseListener
{
StringBuffer
strBuffer
;
public
void
init
(
)
{
addMouseListener
(
this
)
;
strBuffer
=
new
StringBuffer
(
)
;
addItem
(
"
initializing the apple
"
)
;
}
public
void
start
(
)
{
addItem
(
"
starting the applet
"
)
;
}
public
void
stop
(
)
{
addItem
(
"
stopping the applet
"
)
;
}
public
void
destroy
(
)
{
addItem
(
"
unloading the applet
"
)
;
}
void
addItem
(
String
word
)
{
System
.
out
.
println
(
word
)
;
strBuffer
.
append
(
word
)
;
repaint
(
)
;
}
public
void
paint
(
Graphics
g
)
{
//
Draw a Rectangle around the applet's display area.
g
.
drawRect
(
0
,
0
,
getWidth
(
)
-
1
,
getHeight
(
)
-
1
)
;
//
display the string inside the rectangle.
g
.
drawString
(
strBuffer
.
toString
(
)
,
10
,
20
)
;
}
public
void
mouseEntered
(
MouseEvent
event
)
{
}
public
void
mouseExited
(
MouseEvent
event
)
{
}
public
void
mousePressed
(
MouseEvent
event
)
{
}
public
void
mouseReleased
(
MouseEvent
event
)
{
}
public
void
mouseClicked
(
MouseEvent
event
)
{
addItem
(
"
mouse clicked!
"
)
;
}
}