Drupal Coding Standards Issues | phpcs

Problem/Motivation

Getting Following errors/warnings

$ phpcs --standard=Drupal belgian_postal_code

FILE: ...Admin\Desktop\task\belgian_postal_code\src\Commands\PostalCodeCommands.php
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FOUND 1 ERROR AFFECTING 1 LINE
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 1 | ERROR | [x] End of line character is invalid; expected "\n" but found
   |       |     "\r\n"
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PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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FILE: ...ers\Admin\Desktop\task\belgian_postal_code\src\Helper\PostalCodeHelper.php
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FOUND 2 ERRORS AFFECTING 2 LINES
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 1 | ERROR | [x] End of line character is invalid; expected "\n" but found
   |       |     "\r\n"
 8 | ERROR | [x] Non-namespaced classes/interfaces/traits should not be
   |       |     referenced with use statements
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PHPCBF CAN FIX THE 2 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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FILE: ...\Desktop\task\belgian_postal_code\src\Helper\PostalCodeHelperInterface.php
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FOUND 7 ERRORS AFFECTING 7 LINES
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  1 | ERROR | [x] End of line character is invalid; expected "\n" but found
    |       |     "\r\n"
 52 | ERROR | [ ] Missing short description in doc comment
 53 | ERROR | [ ] Missing parameter comment
 55 | ERROR | [ ] Description for the @return value is missing
 59 | ERROR | [ ] Missing short description in doc comment
 60 | ERROR | [ ] Missing parameter comment
 62 | ERROR | [ ] Description for the @return value is missing
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PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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Time: 440ms; Memory: 8MB

Proposed resolution

Fix the errors and warnings.