java coding standards for interfaces

1It is recommended highly to follow java coding standards.
2Classnames should start with uppercase letter. Classnames names should be nouns.
3If Class name is of multiple words then the first letter of inner word must be 
4capital letter.
5Ex : Employee, EmployeeDetails, ArrayList, TreeSet, HashSet

11) Interface should start with uppercase letters
22) Interfaces names should be adjectives
3Example : Runnable, Serializable, Marker, Cloneable