CODEWITHSUNDEEP
javaclasspreprocessor
padawan
padawan

Reputation: 1315

Is it possible to #define a class in Java?

I am using ProGAL package. There are two different classes, ProGAL.geom2d.Point and ProGAL.geom3d.Point. Both are referred as Point. When I import one, I only can use the other by typing the full path. For instance:

import ProGAL.geom3d.Point;
//...
Point pointIn3D = new Point(1,2,3);
ProGAL.geom2d.Point pointIn2D = new ProGAL.geom2d.Point(4,5);

I want to use something like

#define ProGAL.geom3d.Point point3d 
#define ProGAL.geom2d.Point point2d

Just like in C++. Is it possible with Java?

Usage would be like:

point3d pointIn3D = new point3d(1,2,3);
point2d pointIn2D = new point2d(1,2,3);

Upvotes: 1

Views: 82

Answers (3)

secretformula
secretformula

Reputation: 6432

No its not possible as there are no #typedef or #define in Java (no preparser). You could try writing another class to encapsulate the one you want to rename or just have lots of code commments.

I do want to note that I don't think that you should try to change the name of the class. It has its name for a reason. If you are going to use it within another class it is really useful for a person to know the actual class that they are working with. This I think is good read/usability. I don't think its good to put smoke screens where ones don't need to exist. The name is descriptive enough.

Upvotes: 1

padawan
padawan

Reputation: 1315

The answer is no. As stated in this link, typedef and #define keywords are accepted as complications and removed in Java because they reduce readibility of the code.

Upvotes: 1

lpratlong
lpratlong

Reputation: 1461

No it's not possible since Java does not allow precompilation instruction.

Upvotes: 1

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