//a class without extends
class TestSystematic {
 
       //test member definition
       Int member;
 
       //Test function without parameter
       Null functionNoPar() {
       }
 
       //Test functions with one parameter
       Null functionOne(Int x) {
       }
 
       //Test functions with two parameters
       Null functionTwo(Int x, Int y) {
       }
 
       //Test statements
       Null testStat() {
               while (a == b) {
                       a;
                       b;
                       c;
               }
 
               type name = init;
               name = init;
               a == b;
               printInt(1);
               printChar(1);
       }
 
       Null testIf() {
               if (a) b;
               if (a) b else d;
       }
 
       //Test the factors
       Null testFactors() {
               ident;
               123;
               "hello";
               true;
               false;
               this;
               null;
               readInt;
               readChar;
               (a);
               {
                       a;
               };
               {
                       a;
                       return b
               };
               new Test();
               new Test(a, b, c);
               factor.ident;
               factor.ident();
               factor.ident(a, b, c);
       }
 
       //test syntactic sugar
       Null syntaxSugar() {
               true;
               false;
               a || b;
               if (a) b;
               {};
               "abcd";
       }
 
       //test operator precedence
       Null operatorPrec() {
               a + b * c;
               a + b * -c;
               (a+b) * c;
               -(a+b) * c;
               a == b + c * d && e;
       }
 
 
 
 
}
 
//a class with extends
class Systematic2 extends Systematic {
 
}
 
foobar.main()