I am trying to do something like this:
public class Arquivo {
private File diretorio = null ;
public Arquivo(File dir){
this.diretorio = dir;
}
public Arquivo(String dir){
this( new File(dir) );
}
public Arquivo(String fileName){
this( new File("./src/Data/"+fileName) );
}
}
You can't with constructor, that is one of the limitation of constructors
time to start using static factory pattern
See Also
new Arquivo("foo") would do? Which constructor would it call?
You can't create two constructors that receive a single String parameter, there can only exist one such constructor. There must be a difference between the signatures, for example, add a second parameter to one of the constructors.
Alternatively, you could create a single constructor and indicate in a second parameter whether it's a file or a directory:
// isFile == true means it's a file. isFile == false means it's a directory
public Arquivo(String fileName, boolean isFile) {
this(new File((isFile ? "./src/Data" : "") + fileName));
}
A constructor can not do that
a lazy solution would be
public Arquivo(String s) {}
public Arquivo(String s, boolean b) {}
and just don't use the boolean
without documentation, which is not right in its own. then i again i said a lazy solution, i agree with you however.