package packA;

public class sam1 
{
 public static final double DIAMETER = 12756.32; // kilometers
 
 public static void hithere()
 {
	 System.out.println("Hi There");
 } 
}


package packB;
import packA.sam1;

public class sam2 
{
	public static void main(String args[])
	{
		sam2 objsam2 = new sam2();
		objsam2.halfway();		
	}
	
	public void halfway()
	{ 
		sam1.hithere();
		System.out.println(sam1.DIAMETER/2.0);
	}
}

-Two Packages – packA and packB – While importing static from packA to packB you should either use import packA.sam1; or import static packA.sam1.*;

Using import static packA.sam1; will not allow to access elements in package

If you use import packA.sam1;
className.StaticVariableName

If you use import static packA.sam1.*;
StaticVariableName