Update all description warnings & errors when making javadoc

warning : update @return, @param & @throws descriptions error : - use of "

" to separate paragraphs instead of using "

" - replace "->" symbol by "to" - don't use "&" symbol to write description for javadoc

changed title from Update parameter and return value description warnings (1er part) to Update parameter and return value description warnings (1st part)

changed the description

added 2 commits

• 127e003e - Update @apram @return description warning (1er part)
• c01711fe - Update @param, @return and @throws description warnings (2nd part)

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changed title from Update parameter and return value description warnings (1st part) to Update all description warnings

changed the description

added 1 commit

• 80ea6b04 - Fixed all errors when making javadoc

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changed title from Update all description warnings to Update all description warnings & errors when making javadoc

changed the description

added 1 commit

• 030edf17 - Update @param description warnings

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merged

mentioned in commit 76685da4