Posted on 2006-12-05 11:34
Yemoo'S Java Blog 閱讀(2045)
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JAVA個人敝作
/**
?*Description:convert?Oct?to?Dec
?*Author:yemoo?2006.12.05
?
*/
?
public
?
class
?P38{
?????
int
?convertOct2Dec(String?Oct){
?????????
int
?result
=
0
;
?????????
int
?power
=
1
;
?????????
for
(
int
?i
=
Oct.length()
-
1
;i
>=
0
;i
--
,power
*=
8
){
?????????????
char
?temp
=
Oct.charAt(i);
?????????????
int
?intTemp
=
Character.getNumericValue(temp);
?????????????
if
(intTemp
>=
0
&&
intTemp
<
8
){
?????????????????result
+=
intTemp
*
power;
?????????????}
else
{
?????????????????
if
(temp
==
'
-
'
&&
i
==
0
){
?????????????????????result
=-
result;
?????????????????}
else
{
?????????????????????
return
?result;
?????????????????}
?????????????}
?????????}
?????????
return
?result;
?????}
?????String?readInput(){
?????????KeyboardInput?in
=
new
?KeyboardInput();
?????????System.out.print(
"
Please?input?a?october?number:
"
);
?????????
return
?in.readString();
?????}
?????
public
?
static
?
void
?main(String?args[]){
?????????P38?obj
=
new
?P38();
?????????String?oct
=
obj.readInput();
?????????
int
?value
=
obj.convertOct2Dec(oct);
?????????System.out.println(
"
Oct:
"
+
oct
+
"
==Dec:
"
+
value);
?????}
?}