Graphical programs not running--need help

Question

Using win98 platform, textpad, and jdk1.5.0...
DOS programs run fine, however, graphical applications do not run--it goes to the DOS window and brings up strings of stuff instead.
When I compile, the error message that generally shows:
Note: C:\jdk1.5.0\demo\...java uses or overrides a depreciated API
Note: Recompile with -Xlint: depreciation for details.
And for applets, this line also existed on a demo:
Note: C:\jdk1.5.0\demo\applets\Animator\Animator.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint: unchecked for details.
Anybody know what to do here? I'm just learning java from books, but I need to be able to run java applications in order to get a feel for the code. Help would be appreciated.

Answer 1

If anyone deems it a necessity, here is an example of simple code that will throw this problem:
(sorry-under win98 2nd ed.)
import java.event.*;
import javax.swing.*;
class CloseableFrame extends JFrame
{  public CloseableFrame()
{  setTitle("Closeable Frame");
setSize(300,200);
addWindowListener(new WindowAdaptor()
{  public void windowClosing(WindowEvent e)
{  System.exit(0);
public class CloseableTest
{  public static void main(String[] args)
{  JFrame frame = new CloseableFrame();
frame.show();
}