Web Reference: Jun 20, 2017 · I have a requirement to write records to a file where the data is written at a file location (i.e, seek position) depending on the value of a numeric key. For example, if the key is 100, I might write at position 400. In this section, we create and manipulate sequential-access files. As mentioned earlier, these are files in which records are stored in order by the record-key field. We first demonstrate sequential-access files using text files, allowing the reader to quickly create and edit human-readable files. When creating a file, nothing will appear in the console window. To see if your file was successfully created, you must view the text file itself. You can code a "finished" message to the console to let you know the file was created, but you will not actually "see" the file.
YouTube Excerpt: Java Sequential File Access
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