Add competitive coding problems and solutions in JAVA

[srsandy]

Add a PR with any competitive coding problem
In

• /Practice Problems/ add competitive coding problems and solutions in the respective topic folder

Check other folders in Arrays how it is done in rest of file

E.g

• Add a folder in Arrays folder with the Name of Problem Title.
• Inside that folder add the solution ProblemTitle.java and a README.md
• Make sure the class name is ProblemTitle that is the name of the file.
• README.md must contain a detail description of the problem with the test cases.

[Ishita-Mehta]

Hi! I'll trying for this issue. First for patterns programming problems. Have a good day!

[Ishita-Mehta]

Hi Sir! I've made 3 pull requests to your repository. I am participating in the Hacktoberfest 2020. There is a new update from digital ocean for maintainers. You can view the update here https://hacktoberfest.digitalocean.com/hacktoberfest-update It states :
We will honor all valid pull requests prior to this change, and as of October 3, 2020 at 12:00:00 UTC – and October 3 in all time zones – pull requests will only count toward earning a T-shirt or planting a tree if they are submitted in a repository classified with the ‘hacktoberfest’ topic. The pull requests will also need to be merged, approved by a maintainer, or labeled as ‘hacktoberfest-accepted’ in order to qualify. The deadline for completions, merging, labeling, and approving is November 1.
PRs count if:
Submitted in a repo with the hacktoberfest topic AND
during the month of October AND (
The PR is merged OR
The PR is labelled as hacktoberfest-accepted by a maintainer OR
The PR has been approved
)
Sir please help for the same. Thank you so much!