grammar.txt

<Program> : <class>

<class>:
    <modAccessClass> class <id> {
        <initList>
        <mainMethod>
    }

<modAccessClass>:
    public |
    private |
    protected

<mainMethod> : public static void main(String[] args) {
  <statementList>
}

<statementList> : <statement>

<expression>:
    <arithmetic> <exprFork> |

<exprFork>:
    <logicOperator> <expression> |
    <condition> <expression> |
    ; |
    E

<arithmetic>:
    <secondPrior>

<secondPrior>:
    <firstPrior><secondPrior_>
<secondPrior_>:
    <secondPriorOper><firstPrior><secondPrior_> |
    E

<firstPrior>:
    <group><firstPrior_>
<firstPrior_>:
    <firstPriorOper><group><firstPrior_> |
    E

<group>:
     (<expression>) <operator> <expression> |
     <valueExpr>

<firstPriorOper>: * | /

<secondPriorOper>: + | - | =

<operator>: + | - | * | / | =

<return>:
    return <expression> | ;

<loop>:
    while (<expression>) {
      <statementList>
    }

<statement> :
      { <statement> } |
      <loop> |
      <conditional> |
      <expression> |
      <System.out.println> |
      <return> |
      ;

<conditional> : if (<expression>) {
                  <statementList>
                } <elseFork>

<elseFork> : else <elseFork1> | E

<elseFork1> : <conditional> | {<statementList>}

<System.out.println>: System.out.println(<expression>);