In C# .net there is a provision to have two different class files and make them a single class using the keyword partial keyword.this helps it to keep [for ex]UI and logic seperate. of course we can have two classes to achieve this one for UI and other for logic. Can this be achieved in java some how?
Asked
Active
Viewed 1.2k times
14
-
I found a way to separate an inner class into an external file, maybe it helps ? http://stackoverflow.com/q/27284667/1190665 – John Dec 04 '14 at 01:34
1 Answers
21
On source file splitting
No. Java source codes can not be split across multiple files.
From the Wikipedia article Comparison of Java and C Sharp
The Sun Microsystems Java compiler requires that a source file name must match the only public class inside it, while C# allows multiple public classes in the same file, and puts no restrictions on the file name. C# 2.0 and later allows a class definition to be split into several files, by using the partial keyword in the source code. In Java, a public class will always be in its own source file. In C#, source code files and logical units separation are not tightly related.
On separating logic and UI into their own classes
The two classes approach is a much better solution than the one-class-two-source approach in this case, because the separation is enforced in the design, not just physical separation in the source codes.
See also
Community
- 1
- 1
polygenelubricants
- 376,812
- 128
- 561
- 623
-
@polygenelubricants thanks for the info.I just wanted the clarification by any chance there was a tweak to get this done.Well having two different classes is more like a design pattern.Anyway thanks for the info – Ravisha May 05 '10 at 05:30
-
@Ravisha: you can always hack `javac` to allow partial class definition, includes, etc. In fact, it's possible that such hack already exists. But no, standard Java doesn't allow this. – polygenelubricants May 05 '10 at 05:46
-