Java Programming, Loose-Leaf Version
Java Programming, Loose-Leaf Version
9th Edition
ISBN: 9781337685900
Author: FARRELL, Joyce
Publisher: Cengage Learning
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Chapter 13, Problem 20RQ

<PROGRAM-DESCRIPTION-ANSWER>

A file channel “is seekable”.

Hence, the correct answer is option “C”.

</PROGRAM-DESCRIPTION-ANSWER>

Explanation of Solution

File Channel:

  • A file channel is a SeekableByteChannel that is connected to a file. It has a current position within its file that can be both queried and modified.
  • The file itself contains a variable-length sequence of bytes, which can be read and written and whose current size can be queried...

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Answer the given question with a proper explanation and step-by-step solution.  Write a function named file_sum that takes as a parameter the name of a text file that contains a list of numbers, one to a line, like this:```23.7711694-12.8014.999```The function should sum the values in the file and write the sum (just that number) to a text file named sum.txt.The file must be named: **file_sum.py**
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Chapter 13 Solutions

Java Programming, Loose-Leaf Version

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