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Question about scanner.hasNext(".")

Barry Burd
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Ranch Hand

Joined: Jun 18, 2003
Posts: 118
    
    5

The way I figure it, the following code should output



because the "data" file contains five characters, none of which have yet been read. Instead, the code outputs



Why?



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David Newton
Author
Rancher

Joined: Sep 29, 2008
Posts: 12617

What does the input file look like? IIRC Scanner breaks up the input based on whitespace by default, so a "." would match only a single character.

(This is from memory--don't trust me.)
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19670
    
  18

You're right David:
Returns true if the next token matches the pattern constructed from the specified string.

Since a token is constructed using whitespace as delimiter hasNext(".") would indeed return true only if the token was a single character.


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