What happens if a program contains un-necessary imports?

Question

Hi,
If a program imports unnecessary classes/packages, will it effect the performance of the program?
for example:
import java.awt.*;                           // nothing to do with the classes of java.awt package
class Test14
     public static void main(String[] args)
                    System.out.println("default");
}Thank you for your consideration.

Answer 1

this example will help you to understand
this is the source code
import java.util.Vector;
import java.awt.image.BufferedImage; // this is unnecessary import
import java.io.InputStream; // this is unnecessary import 
public class Test {
    Vector vect = new Vector();
}and this is decompiled code
import java.util.Vector;
public class Test
  Vector vect = new Vector();
}do you see the difference?