Apps Question about import

[Bee Torika]

I have to import those three classes.


import android.graphics.Color;

import android.graphics.Paint;

import android.graphics.Canvas;


And I will simply import all of that by

import android.graphics;



So, I have a question.


Why a developers import each of them one by one ?

Why not just import like import android.graphics; ?


This way will take much more time and memory ?


Oh, I know this is basic question, but I want to know a reason..


Thanks.

 

[Deleted User]

It's a good question, and apparently opinion is split. All IDEs I've used import individual classes, and you practically never have to manually type those import statements, because that stuff is automatically inserted by the IDE, as you type class names in the code. Here's a bit of discussion on the subject

http://stackoverflow.com/questions/147454/why-is-using-a-wild-card-with-a-java-import-statement-bad

 

[Bee Torika]

I see, so prevent duplicate method name (name space issue) , right ?

 

[Deleted User]

Well I think it's good to import specific classes, to avoid possibly the same class name in different packages.

 

[HeavensSentSword]

Doesn't it keep the whole project smaller to? If you are using only one method from a lib then why import the whole thing if you just want one method from a .somthingorother

 

[Deleted User]

It's probably more efficient to import specific classes, but in terms of class loading, then the JVM only imports what it needs at runtime. I don't think it actually makes a whole lot of difference tbh.