FAQ: Serialization: Lesson - Serializing Objects to a File

discourse-admin · April 9, 2022, 5:15am

This community-built FAQ covers the “Serializing Objects to a File” exercise from the lesson “Serialization: Lesson”.

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FAQs on the exercise Serializing Objects to a File

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cc_sjacobs · September 28, 2022, 10:05pm

This course is a little rough. (The beginner Java course is much more polished. I didn’t have any problem with anything not working as described.) The article on using the command line where we built the Transportation set of files does not compile as written.

This particular exercise says a cars.txt file will appear but it did not for me. I’m pretty sure I’ve done it correctly.

nad.chel · December 30, 2022, 12:35pm

What I didn’t get is this, will Java create a .txt file with the specified name if no such file exists? Suppose there’s no file named cars.txt. Would this line cause problems during compiling?

FileOutputStream fileOutputStream = new FileOutputStream("cars.txt");

And if FileInputStream/FileOutputStream doesn’t create files, then how do I do it with Java code?