• Syntax Short List

  
   <name> ==> any string of alphanumeric symbols that begins with a letter
   <statement> ==> <name> = <expression> ;
   <statement> ==> <name> = new <class>(<arguments>);
   <statement> ==> <name>.<method>(<arguments>) | <method>(<arguments>) ;
   <arguments> == possibly empty list of <expression>s separated by commas
   <expression> ==> <string-expression> | <int-expression> | <oth-expression>
   <string-expression> ==>  <string-expression> + <string-expression>
   <string-expression> ==>  <string>
   <string> ==> " any sequence of characters "
   <string> ==> <name>
  
  

• Prove that a statement is syntactically correct.

• To Use: substitute, multiple times as necessary:
  
  
  
  

• Statement Example
  Want: person = firstn + " " + lastn;

 EXAMPLE:
(2) <statement> -> <name> = <expression>;
(1) <statement> -> person = <expression>;
(6) <statement> -> person = <str expression>;
(7) <statement> -> person = <str expression> + <str expression>;
(8) <statement> -> person = <string> + <str expression>;
(10) <statement> -> person = <name> + <str expression>;
(1) <statement> -> person = firstn + <str expression>;
(7) <statement> -> person = firstn + <str expression> + <str expression>;
(8) <statement> -> person = firstn + <string> + <str expression>;
(9) <statement> -> person = firstn + " " + <str expression>;
(8) <statement> -> person = firstn + " " + <string>;
(10) <statement> -> person = firstn + " " + <name>;
(1) <statement> -> person = firstn + " " + lastn;

• Need More: Example involving compound statement:
  (assuming result5 is a string variable)

  {

  s = "Hello!";

  k = result5;

  }

• More Syntax

  11. <method> ==> setText | getText | getInt | setInt |
                         add | actionPerformed | init
  
  12. <compound-statement> ==> {
                                  list of <statement>s
                               }
  
  13. <statement> ==> if (<bool-expression>)
                         <compound-statement>
  
  14. <statement> ==> if (<bool-expression>)
                         <compound-statement>
                      else
                         <compound-statement>