Error whilst using StringTokenizer on text file with multiple lines

Question

I\'m trying to read a text file and split the words individually using string tokenizer utility in java.

The text file looks like this;

a 2000

4  
b         


        

Answer 1

This problem is due to the fact that you don't test if there is a next token before trying to get the next token. You should always test if hasMoreTokens() before returns true before calling nextToken().

But you have other bugs :

• The first line is read, but not tokenized
• You only add the first word of each line to your list of words
• bad practice : the token variable should be declared inside the loop, and not outside
• you don't close your reader in a finally block