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File contents: rat tar tart a a tot tot tot level code is CodeGym si level Console output: rat tar a a tot tot level level is si What I did wrong?

In the main method, read the name of a file that contains words separated by spaces from the console.
In the text of the file, find all pairs of words that are mirror images of each other. Add them to result.
Use StringBuilder.
The file encoding is UTF-8.

Example of file contents

rat tar tart a
a tot tot tot

Output:

rat tar
a a
tot tot

Requirements:

The main method must read the filename from the keyboard.
The main method must use StringBuilder.
The Solution class must contain a nested Pair class with equals, hashCode, and toString methods. Don't delete or change these methods.
The Pair class must declare a constructor without parameters, i.e. a default constructor.
The result list must be filled with correct pairs according to the task conditions.

rat tar tart a a tot tot tot level code is CodeGym si level

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Thomas

Level 41 , Bayreuth , Germany

6 August 2023, 14:18

when I look at your code then I think this might be a problem tar rat tar The output I expect it to give is rat tar rat tar but it should be just rat tar

Amantai

Level 47 , Shymkent , Kazakhstan

7 August 2023, 07:24

Have you tested my code? I changed the contents of the file to: tar rat tar As a result, I got: rat tar rat tar I just noticed that the toString method outputs data in alphabetical order, but I haven't changed anything in my code.

Amantai

Level 47 , Shymkent , Kazakhstan

7 August 2023, 07:30

And yet, I thought that the output should not have the same elements.

Thomas

Level 41 , Bayreuth , Germany

7 August 2023, 08:19

useful

Yes, I've tested your code. The problem is with that sample that you should have one result pair and not two. 'tar' and 'rat' gives one pair and then one 'tar' is left. That is not enough to build another pair. The output order does not matter at all (as far as I remember)

Amantai

Level 47 , Shymkent , Kazakhstan

8 August 2023, 05:59

solution

Based on your statement "...That is not enough to build another pair." I slightly changed the code that passed the verification. Thank you.