Added DequeUsingArray implementation in Java

[sonudodwariya]

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized it.
• All filenames are in PascalCase.
• All functions and variable names follow Java naming conventions.
• All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 81 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.09%. Comparing base (883a050) to head (6284d72).
⚠️ Report is 22 commits behind head on master.

Files with missing lines	Patch %	Lines
...orithms/datastructures/queues/DequeUsingArray.java	0.00%	81 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6781      +/-   ##
============================================
- Coverage     77.33%   77.09%   -0.24%     
- Complexity     6171     6240      +69     
============================================
  Files           721      724       +3     
  Lines         20589    20920     +331     
  Branches       3992     4073      +81     
============================================
+ Hits          15922    16129     +207     
- Misses         4055     4157     +102     
- Partials        612      634      +22     

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