User imput string int and float[DOUBT]

[Jean Cesar via Digitalmars-d-learn]

On Thursday, 16 February 2017 at 02:17:49 UTC, Ali Çehreli wrote:
> On 02/15/2017 05:49 PM, Jean Cesar wrote:
>
> > So I'm a beginner in this language and have very little time
> I started
> > I'm interested in apprehending concepts of object orientation
> > polymorphism inheritance, multiple inheritance as in c ++
>
> D is similar to C++ but also very different.
>
> > but I did not
> > understand how to use constructor in it
> > Because I simply did.
> >
> > Class person
> > {
> >    person(){}
> >    ~ Person () {}
> > }
> >
> > And error ...
>
> In D, constructor is always called this():
>
> class Person
> {
>    this(){}
>    ~this() {}
> }
>
> void main() {
>     auto p = new Person();
> }
>
> Ali



So I used get methods and sets only as initial pattern to 
netender the functioning of the language in relation to some 
concepts of the same I intend to learn it not because it is a new 
language, but I want to understand how to leave a very small code 
with the largest number of Possible functionality type I still do 
not know very well or use constructors in C ++ but I have very 
high potential in a code with multiple inheritance, I think of 
compilers in the case of the code that favors me in reading so I 
would do something like:

void main ()
{
    minhaclasse c = new minhaclasse(string text);
    minhaclasse d = new minhaclasse(int number);

  write("Enter your name: ")
  c.set();

  write("Enter your age: ")
  d.set();
   /*
     the set method would already fetch user i
     imput by mistake for the information automatically
   */

   Writeln
    (
     "\n\tString:", c.get (),
     "\n\tInt:", d.get ()
    );
}

Or something like:



void main ()
{
   string txt;
    Int num;
  write("Enter your name: ")
  minhaclasse(text).set();

  write("Enter your age: ")
  minhaclasse(num).set();

   writeln
    (
     "\n\tString:", minhaclasse(text).print() ;,
     "\n\tInt:", minhaclasse(num).print();
    );
}

I think of object orientation this way to avoid getting rewritten 
many things so I would only define what the set or get would 
return by initializing the constructor only but I have no idea 
how to do that ..

My goal in learning to use languages like Java, C ++, D is with 
the intention of learning the best way to reuse code and 
orienation to objects and also development cross-platform codes 
that will run in standard ansi for, Unix, Linux, Windows, android 
etc. ..