CODEWITHSUNDEEP
javaandroidtokenizestringtokenizer
Hein du Plessis
Hein du Plessis

Reputation: 3357

Android StringTokenizer - reading blank values

I have pipe delimited strings containing id, latitude, longitude, refname, userid, username:

1390|-32.5506782531738|18.9797592163086|Hardie - Vrede 4|21|Hardie van der Merwe
1391|-33.5143165588379|18.422327041626|test|3|sgroenewald
1392||||3|sgroenewald

When I use a StringTokenizer class to read each of these lines, they work, until I hit line 3, where there are blank values. I read the ID ok, then I check hasMoreTokens(), which returns true, but it skips over the blanks and goes to the second last field, which is read as 3 using nextToken, but into the wrong variable in my code.

Continuing on I read the next field using nextToken, expecting it to be longitude, but I get a string back (sgroenewald) and the wheels come off..

Is there a way to see if the next token is blank, before reading it?

Upvotes: 1

Views: 633

Answers (2)

HitOdessit
HitOdessit

Reputation: 7256

Try to use constructor of StringTokenizer with 3 params, specifying returnDelimiters as true. Of course you need to manually remove delimiters from values itself while cycling tokenizer.

Upvotes: 1

Lucifer
Lucifer

Reputation: 29632

One thing you can do is, replaces these blank spaces with no space ( " " with "" ) using replace() method of String Class.

String finalStr = "1390|-32.5506782531738|18.9797592163086|Hardie - Vrede 4|21|Hardie van der Merwe"; 

finalStr = finalStr.replaceAll( " ", "" );

Upvotes: 0

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