How to know they is space or carrier return when java read a text file.

Hi,
Please help.
How to know they is space or carrier return when java read a text file.
The reason is that. I want to use java for loop to read each part of value. for example: first part is the items name. After the space (I need to tell java when this is a space here and its need to skip) , following by the items prices in double value and space again (need to skip also) and etc.
item name1
item name2
item name3
item name4
item name5
<--- here is the space to skip and another loop to read following items prices
item price1
item price2
item price3
item price4
item price5
<--- here is another spcae again. and so on
thank in advance!

You can check to see if the sting you read in is just nothing, depending on how you're reading it in:
if((str = inStream.readLine().trim().equals("")))
// skip and get ready for the next section
else
// handle the next item
The trim() method gets rid of all leading and trailing spaces and I'm assuming you're using a stream that can use the readLine() method that returns a String.
I hope this is clear. Let me know if it isn't, I'll try and word it different, or post how you're reading the values in if you need more help.

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How to know theis a space or carrier return when java read read a text file

Hi,
Please help.
How to know theis a space or carrier return when java read read a text file.
for example a text like this:
5
<---how to let tell java they is a space here
item1
item1
item1
item1
item1
<---how to let tell java they is a space here
item2
item2
item2
item2
item2

hi!
The reason is that. I want to use java for loop to read each part of value. for example: first part is the items name. After the space (I need to tell java when this is a space here and its need to skip) , following by the items prices in double value and space again (need to skip also) and etc.
item name1
item name2
item name3
item name4
item name5
<--- here is the space to skip and another loop to read following items prices
item price1
item price2
item price3
item price4
item price5
<--- here is another spcae again. and so on
Thank in advance for your help.
jet

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Hello,
I have a text file A look like this:
0 0
0 A B C
1 B C D
2 D G G
10
1 A R T
2 T Y U
3 G H J
4 T H K
20
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I want to always get rid of last letter and select only the first and last line and save it to another text file B. The output should like this
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If the text file A look like that
0 0
0 3479563,41166 6756595,64723 78,31 1,#QNAN
1 3479515,89803 6756588,20824 77,81 1,#QNAN
2 3479502,91618 6756582,6984 77,94 1,#QNAN
3 3479516,16334 6756507,11687 84,94 1,#QNAN
4 3479519,14188 6756498,54413 85,67 1,#QNAN
5 3479525,61721 6756493,89255 86,02 1,#QNAN
6 3479649,5546 6756453,21824 89,57 1,#QNAN
1 0
0 3478762,36013 6755006,54907 54,8 1,#QNAN
1 3478756,19538 6755078,16787 53,63 1,#QNAN
2 0
3 0
N 0
I want to read the line that before and after 1 0, 2 0, ...N 0 line to arraylist. I have programed the following code
public ArrayList<String>save2;
public BufferedWriter bufwriter;
File writefile;
String filepath, filecontent, read;
String readStr = "" ;
String[]temp = null;
public String readfile(String path) {
int i = 0;
ArrayList<String> save = new ArrayList <String>();
try {
filepath = "D:\\thesis\\Material\\data\\CriticalNetwork\\test3.txt";
File file = new File(filepath);
FileReader fileread = new FileReader(file);
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this.read = null;
// read text file and save each line content to arraylist
while ((read = bufread.readLine()) != null ) {
save.add(read);
// split each arraylist[i] element by space and save it to String[]
for(i=0; i< save.size();i++){
this.temp = save.get(i).split(" ") ;
// if String[] contain N 0 such as 0 0, 1 0, 2 0 then save its previous and next line from save arraylist to save2 arraylist
if (temp.equals(i+"0")){
this.save2.add(save.get(i));
System.out.println(save2.get(i));
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return readStr;
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Read a text file before knowing the encoding

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Powershell script - how to read a registry hive and store the value in text file and then again read the text file to write the values back in registry

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Lange Jerome
FRANCE
"Nina" a ecrit dans le message news:
[email protected]..
> I would like to read a text file in which the decimal numbers are
> using dots instead of commas. Is there a way of converting this in
> labVIEW, or how can I get the program to enterpret the figures in the
> correct way?
>
> The program doest enterpret my figures from the text file in the
> correct way since the numbers contain dots instea
d of commas. Is there
> a way to fix this in labVIEW, or do I have to change the files before
> reading them in the program? Thanks beforehend!

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Read and write one text file is not a problem, but what confusies me is how to read several text files at one time, in the meanwhile,
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Message Edited by devchander on 05-30-2006 05:11 AM
Attachments:
MULTIPLE READ.vi ‏44 KB

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How to i read multiple text files one bye one

hi all
I need to select the text files multiple times and read files one by one
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please help me
Solved!
Go to Solution.

gowthamggk wrote:
i sucessfully reading one text file through this VI
but as like this .. i need for multiple files
Why are you not using For loop???
gowthamggk wrote:
also shld read the text line by line
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How to know they is space or carrier return when java read a text file.

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