The format of the call statement is:
It is a statement that ends with a method call followed by a semicolon.
A return value of the method is ignored.
It is an expression that ends with a method call.
If the call expression has a dot operator, the call statement calls the method of the instance returned by the expression to the left of the last dot.
If the call expression does not have a dot operator, the call statement calls the method in the current class definition.
The end of a call statement is represented by a semicolon.
open method void someMethod(int arg)
var1 = arg;
open method void someMethod2(int arg)