►How to Design Classes Languages
▼1 Professor  J Beginner
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1 ProfessorJ Beginner🔗ℹ

  Program

 

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Import ... Def ...

  Import

 

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import Name ; 

import Name.* ; 

  Def

 

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class Id {Member Member ...}

class Id implements Id {Member Member ...}

interface Id {Signature ...}

  Signature

 

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Type Id (Type Id ,...) ; 

  Member

 

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Field

Method

Constructor

  Field

 

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Type Id = Expression ; 

Type Id ; 

  Method

 

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Type Id (Type Id ,...) {Statement}

  Constructor

 

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Id (Type Id ,...) {Init ...}

  Init

 

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this.Id = Id ; 

  Statement

 

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if (Expression) {Statement} else {Statement}

return Expression ; 

  Expression

 

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Expression Op Expression

- Expression

! Expression

this

Expression.Id (Expression ,...)

Expression.Id

new Id (Expression ,...)

check Expression expect Expression

check Expression expect Expression within Expression

(Expression)

Id

Number

Character

String

true

false

  Name

 

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Id. ... Id

  Op

 

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+

-

*

/

<

<=

==

>

>=

&&

||

  Type

 

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Id

boolean

int

char

double

float

long

byte

short

An Id is a sequence of alphanumeric characters, _, and $.

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