Created age finer in java

[niish03]

Remembering exactly how old are you is difficult. This program helps you to know your exact age EG:-XYZ(Your name) is 19 years 2 months and 2 days old.

Pull Request checklist -

• [ ] This pull request fixes #issue_reference (Create an issue if not already present.)
• [ ] The directory structure is of the form (directory_name) (If directory doesn't exist, create a new.)
• [ ] Don't duplicate stuff.

Make sure all the above conditions are met before a PR is created.