Posted on 2006-11-05 17:57
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java基礎學習系列
import?
java.util.Enumeration;
class?
collection?
implements?
Enumeration?
{
??
private?
int?
count?=?
0
;
??
private?
boolean?
more?=?
true
;
??
public?
boolean?
hasMoreElements
()?{
????
return?
more;
??
}
??
public?
Object?nextElement
()?{
????
count++;
????
if?
(
count?>?
4
)
??????
more?=?
false
;
????
return?new?
Integer
(
count
)
;
??
}
}
public?class?
MainClass?
{
??
public?static?
void?
main
(
String?args
[])?{
????
Enumeration?e?=?
new?
collection
()
;
????
while?
(
e.hasMoreElements
())?{
??????
System.out.println
(
e.nextElement
())
;
????
}
??
}
}