casting int as String

[B J H]

I want to do the following

int [] list;
String list;
i int;
.....
for (i=0; i<int.length, i++_
{
list.concat(lis t[i]);
list.concat(" ");
}

But list.concat expects a string, and I'm putting a int into it - how can I
make this work? How can I put an int into string.concat?

Thanks

[kevinc]

Re: casting int as String

Substitute

String list

with

StringBuffer list = new StringBuffer();

list.append(lis t[i]);

When you want the resultant string

do list.toString() ;




B J H wrote:[color=blue]
> I want to do the following
>
> int [] list;
> String list;
> i int;
> ....
> for (i=0; i<int.length, i++_
> {
> list.concat(lis t[i]);
> list.concat(" ");
> }
>
> But list.concat expects a string, and I'm putting a int into it - how can I
> make this work? How can I put an int into string.concat?
>
> Thanks
>
>
>[/color]

[Brad BARCLAY]

Re: casting int as String

B J H wrote:
[color=blue]
> list.concat(lis t[i]);[/color]

What are you trying to concatenate here? A string representing the
numerical digits in the int (ie, if list[i]=12345, you want to append
"12345" to your String), _or_ do you want to append the character with
the matching Unicode (or current codepage) value to your String (ie: if
list[i]=65, you want to append "A" to your String)?

If you can explain what it is you're trying to achieve, someone should
be able to help you better.

Brad BARCLAY

--
=-=-=-=-=-=-=-=-=
From the OS/2 WARP v4.5 Desktop of Brad BARCLAY.
The jSyncManager Project: http://www.jsyncmanager.org

[B J H]

Re: casting int as String

Sorry,

I have an array of integers. I want to create a string of these integers
with a space in between each one.

E.g.

int [] intarray;
String integerlist;

If the array contains say
10
12
15
45
51

then i want the string to look like this
"10 12 15 45 51"

Any suggestions ?

"Brad BARCLAY" <bbarclay@jsync manager.org> wrote in message
news:KiOwb.4376 $zJq.3743@news0 1.bloor.is.net. cable.rogers.co m...[color=blue]
> B J H wrote:
>[color=green]
> > list.concat(lis t[i]);[/color]
>
> What are you trying to concatenate here? A string representing the
> numerical digits in the int (ie, if list[i]=12345, you want to append
> "12345" to your String), _or_ do you want to append the character with
> the matching Unicode (or current codepage) value to your String (ie: if
> list[i]=65, you want to append "A" to your String)?
>
> If you can explain what it is you're trying to achieve, someone should
> be able to help you better.
>
> Brad BARCLAY
>
> --
> =-=-=-=-=-=-=-=-=
> From the OS/2 WARP v4.5 Desktop of Brad BARCLAY.
> The jSyncManager Project: http://www.jsyncmanager.org[/color]

[Anthony Borla]

Re: casting int as String


"B J H" <no@one.com> wrote in message
news:QQQwb.2391 09$pf5.1692449@ news.easynews.c om...[color=blue]
> Sorry,
>
> I have an array of integers. I want to create a string of
> these integers with a space in between each one.
>
> E.g.
>
> int [] intarray;
> String integerlist;
>
> If the array contains say
> 10
> 12
> 15
> 45
> 51
>
> then i want the string to look like this
> "10 12 15 45 51"
>
> Any suggestions ?
>[/color]

int[] intarray = {10, 12, 15, 45, 51 };

StringBuffer spaceSepInteger s =
new StringBuffer(in tarray.length * 2);

for (int i = 0; i < intarray.length ; ++i)
spaceSepInteger s.append(Intege r.toString(inta rray[i])).append(" ");

String integerlist = spaceSepInteger s.toString().tr im();

Crude but simple !

I hope this helps.

Anthony Borla

[B J H]

Re: casting int as String

Thank you. I finally implemented it like this...

public String displayMarks()
{
StringBuffer list = new StringBuffer();
for (i=0; i < nummark; i++)
{
list.append(mar ks[i]);
list.append(" ");
}
return list.toString() ;
}

This seems to work fine me at the moment. The length of the array is
unknown, I hope that I don't run into problems if the array turns out to be
hundreds of integers long! :)

Thanks.



"Anthony Borla" <ajborla@bigpon d.com> wrote in message
news:1yRwb.2717 0$aT.6456@news-server.bigpond. net.au...[color=blue]
>
> "B J H" <no@one.com> wrote in message
> news:QQQwb.2391 09$pf5.1692449@ news.easynews.c om...[color=green]
> > Sorry,
> >
> > I have an array of integers. I want to create a string of
> > these integers with a space in between each one.
> >
> > E.g.
> >
> > int [] intarray;
> > String integerlist;
> >
> > If the array contains say
> > 10
> > 12
> > 15
> > 45
> > 51
> >
> > then i want the string to look like this
> > "10 12 15 45 51"
> >
> > Any suggestions ?
> >[/color]
>
> int[] intarray = {10, 12, 15, 45, 51 };
>
> StringBuffer spaceSepInteger s =
> new StringBuffer(in tarray.length * 2);
>
> for (int i = 0; i < intarray.length ; ++i)
> spaceSepInteger s.append(Intege r.toString(inta rray[i])).append(" ");
>
> String integerlist = spaceSepInteger s.toString().tr im();
>
> Crude but simple !
>
> I hope this helps.
>
> Anthony Borla
>
>[/color]

[Brad BARCLAY]

Re: casting int as String

B J H wrote:
[color=blue]
> If the array contains say
> 10
> 12
> 15
> 45
> 51
>
> then i want the string to look like this
> "10 12 15 45 51"
>
> Any suggestions ?[/color]

First off, you have to convert from int to String. There are a few
ways of doing this. Assuming 'i' is an integer:

0) Use Integer.toStrin g(i)
1) Use (""+i), or
2) Use something akin to the following:

StringBuffer sb=new StringBuffer();
sb.append(i);

If you're going to be appending a bunch of ints together, use the last
option (#2) above -- it's quite a bit more efficient than the other two.

Brad BARCLAY

--
=-=-=-=-=-=-=-=-=
From the OS/2 WARP v4.5 Desktop of Brad BARCLAY.
The jSyncManager Project: http://www.jsyncmanager.org