Fundamentals - SCJP Sun Certified Programmer for Java Platform SE6 - page 15

The source fi le ColorChanger.java is saved in c:\myproject\src\com\sybex\events
and the class is compiled using the following command executed from c:\myproject\src :
javac -d c:\myproject\build .\com\sybex\events\ColorChanger.java
This command line creates ColorChanger.class in the c:\myproject\build\com\sybex\
events directory. The following program contains main and tests the ColorChanger class:
1. package com.sybex.demos;
2.
3. import com.sybex.events.ColorChanger;
4. import java.awt.Button;
5. import java.awt.Color;
6. import java.awt.event.ActionEvent;
7.
8. public class TestColors {
9.
10. public static void main(String [] args) {
11. Button b = new Button(“Testing...”);
12. b.setBackground(Color.GREEN);
13. System.out.println(“Color is “ + b.getBackground());
14.
15. ColorChanger cc = new ColorChanger(b);
16. ActionEvent action = new ActionEvent(b,
17. ActionEvent.ACTION_PERFORMED,
18. “blue”);
19. cc.actionPerformed(action);
20. System.out.println(“Now the color is “
21. + b.getBackground());
22. }
23. }
TestColors.java is saved in the c:\myproject\src\com\sybex\demos directory.
Because TestColors is not in the same package as ColorChanger , it imports the
ColorChanger class. TestColors is compiled using the following command executed from
the c:\myproject\src directory:
javac -d c:\myproject\build .\com\sybex\demos\TestColors.java
This command line creates TestColors.class in the directory c:\myproject\build\com\
sybex\demos . Figure 1.3 shows the directory structure after compiling the source fi les with -d .