Welcome to the Java Programming Forums
The professional, friendly Java community. 21,500 members and growing!
The Java Programming Forums are a community of Java programmers from all around the World. Our members have a wide range of skills and they all have one thing in common: A passion to learn and code Java. We invite beginner Java programmers right through to Java professionals to post here and share your knowledge. Become a part of the community, help others, expand your knowledge of Java and enjoy talking with like minded people. Registration is quick and best of all free. We look forward to meeting you.
>> REGISTER NOW TO START POSTING
Members have full access to the forums. Advertisements are removed for registered users.
LinkBack URL
About LinkBacks
getting the proper input from file
guys, suppose I have a text file with the following format
name lastname gpa major advisor
my problem here is with major which is sometimes compose of two words, but in my loop the second word of major becomes the first word of advisor... how could I get around that?
don't tell me
major = in.next(); major += in.next();
b/c some major have only one word..
Related threads:
Re: getting the proper input from file
You can use some character to separate each of the categories
Such as:
Smith#John#3.7#Computer Science#Mr. Jones
Then you can just get the whole line and split it up at each # character
Re: getting the proper input from file
my file is split with "tab"... can I just do the same using "tab" instead of some other character like #?Originally Posted by Parranoia
Re: getting the proper input from file
Yes, you can. You can use the String's split method with "tab" as a delimiter.
Re: getting the proper input from file
for some reason "tab" does not space every column equally in the same line
for example
String data1 = "john doe 2.5 computer science programming";
believe it or not every column is separated by a "tab" and as you can see they are not equally separated.. meaning not all columns have equal amount of blank spaces in between. Therefore when using data1.split(" ") with tab as a separator, it messes up the the input, and why is it that data1.split("\t") does not work?
Re: getting the proper input from file
The \ character has special meaning in regular expressions. To use a \ you have to escape it.why is it that data1.split("\t") does not work?
And that is tricky. Try this: "\\\t"
EDIT: I just tried your code and it worked.
String aStr = "csw\tdswws\tew322\tf"; System.out.println(Arrays.toString(aStr.split("\t"))); // [csw, dswws, ew322, f]
Last edited by Norm; June 17th, 2012 at 11:28 AM.
If you don't understand my answer, don't ignore it, ask a question.
Re: getting the proper input from file
well, your code is not equal than mine... you actually inserted asci \t into the string.... I'm using keyboard tab. I tried escaping it but didn't work either
Last edited by mia_tech; June 17th, 2012 at 04:33 PM.
Re: getting the proper input from file
What characters are in a line in your text file?
Print out the bytes in the String you read from the file using the following technique:
Replace aStr with the String variable that you read a line into from the file.byte[] bytes = aStr.getBytes(); System.out.println(Arrays.toString(bytes));
Post the output here.
If you are in an editor, the editor could replace the tab with spaces.I'm using keyboard tab
Last edited by Norm; June 17th, 2012 at 04:50 PM.
If you don't understand my answer, don't ignore it, ask a question.
Re: getting the proper input from file
yeah, that was the problem, I just used notepad, which is a more cleaner editor, and it all worked (first time used notepad++)
by the way this is the output you ask for. How do you convert this back to asci characters?
[74, 111, 104, 110, 9, 83, 109, 105, 116, 104, 9, 51, 46, 52, 9, 67, 111, 109, 112, 117, 116, 101, 114, 32, 83, 99, 105, 101, 110, 99, 101, 9, 112, 114, 111, 103, 114, 97, 109, 109, 105, 110, 103]
Re: getting the proper input from file
Is your code working now?
If you don't understand my answer, don't ignore it, ask a question.
Re: getting the proper input from file
yes, it is...
Re: getting the proper input from file
That output was so we could see what was in the file. Its source was the String of ASCII characters.How do you convert this back to asci characters?
If you don't understand my answer, don't ignore it, ask a question.
Reply With Quote