Update Integers.java

[akganapat]

The modifications to the code were to bring constants to the top of the code.

These changes were useful as it made it easier to see the variables on top

By submitting this pull request I confirm I've read and complied with the below requirements.

• I have read the Contribution guidelines and I am confident that my PR reflects them.
• I have followed the coding guidelines for this project.
• My code follows the skeleton code structure.
• This pull request has a descriptive title. For example, Added {Algorithm/DS name} [{Language}], not Update README.md or Added new code.

[akganapat]

I made changes to lines just below the main class delcaration to make the code easier to understand.