All

• Indentation has to be 2. Example

Java

• Alignment
  • Fields Example
    • public -> protected -> package-private -> private
    • immutable(final) -> mutable(non-final)
    • static -> non-static
    • ordered by name
  • Methods Example
    • public -> protected -> package-private -> private
    • immutable(final) -> mutable(non-final)
    • static -> non-static
    • ordered by name
• Style
  • Local values have to have var keyword that comes with Java 11. Example
  • Fields and methods have to annotatated with @NotNull and @Nullable. Nullable NotNull
  • The classes that are not supposed to extensible have to have final keyword. Example
  • The methods where is in an abstract class should have final keyword. Example
  • The fields which suppose to be immutable have to have final keyword. Example
  • The constructors mustn't have real code in it. Wrong Correct
  • Using this keyword for fields and methods is a must. Example
  • The Javadoc for each constructor, method, class, and the field is a must. Example
  • The Javadocs start with lowercase letter is a must. Example
  • The end line is a must. Example
  • No blank line before the latest brace is a must. Example
  • No blank line in any method is a must. Example
  • Blank lines between fields and methods only 1 is a must. Example
  • 1 blank line after the class header is a must. Example
  • package-info.java for each package is a must. Example

XML

• Alignment
  • .
• Style
  • .

Properties

• Style
  • .properties files can have blank lines. Example