We want to describe Javastyle class declarations same as the following examples: class Car extends Vehicle public class JavalsCrazy implements Factory, Builder, Listener public final class President extends Person implements Official For this we have the following grammar: (1) C P F class identifier X Y (2) P- public (4) Ffinal (6) (7) (8) (9) (10) X extends identifier X Y implements ! Y-E I-identifier J (12) ]. We want to describe Javastyle class declarations same as the following examples: class Car extends Vehicle public class JavalsCrazy implements Factory, Builder, Listener public final class President extends Person implements Official For this we have the following grammar: (1) C P F class identifier X Y (2) P- public (4) Ffinal (6) (7) (8) (9) (10) X extends identifier X Y implements ! Y-E I-identifier J (12) ]