What will happen with the program if there is less data in the file than the program needs?

A good answer might be:

Try it and see. The system will not let you mistakenly think that everything has worked correctly.

End of the Chapter

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Input redirection.
Problems with blank lines.
Redirecting both input and output.
Numeric input.
The trim() method.
Number format exceptions.

The next chapter will give further examples of file input and output.

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