/*  
    As is, program compiles okay.  When line (1) commented out, compile error
    (as I would expect):
    
        ImportAnomaly.java:41: cannot resolve symbol
        symbol  : class URL
        location: class ImportAnomaly
                URL url = ia.getClass().getResource("Face0.gif");      // (3)
                ^                        
    
    When lines (1), (3), and (4) are commented out, the compile error goes away.
    
    HOWEVER, with these lines commented out, line (2) is STILL creating an
    (intermediate) object of class URL, and feeding it to the ImageIcon class'
    constructor as an argument.  Why doesn't line (2) REQUIRE line (1)?  How
    does the ImageIcon constructor know that the argument is of class
    java.net.URL when, with line (1) commented out, that class is "alien" to 
    the program?
*/
 
import javax.swing.Icon;
import javax.swing.ImageIcon;
import java.net.URL;                                                   // (1)
 
public class ImportAnomaly {
    public static void main(String[] args) {
        ImportAnomaly ia = new ImportAnomaly();
        Icon icon1 = 
                new ImageIcon(ia.getClass().getResource("Face0.gif")); // (2)
        URL url = ia.getClass().getResource("Face0.gif");              // (3)
        Icon icon2 = new ImageIcon(url);                               // (4)
    }
}