Posted by 박형배 on August 19, 1997 at 09:45:55:
안녕하세요?
안동에 박형배입니다.
ShowDocument를 사용해 볼려고 하는데
계속해서 Null pointer Exception Error가 남니다.
누가 소스 좀 보시고 잘 못된 점 좀 지적해 주세요.
그럼
------------------- 소 스 --------------------------
// {$R noname01.JFM}
import java.awt.*;
import java.applet.Applet;
import java.applet.AppletContext;
import java.net.*;
// Class noname01
public class linktest extends Applet
{
//Class
// AppletContext appletContext;
final int MenuBarHeight = 0;
// Component Declaration
public TextField TextField1;
public Button Button1;
public String urlString = "http://www.andong.ac.kr/";
public URL url = null;
// End of Component Declaration
// init()
public void init()
{
// Frame Initialization
setForeground(Color.black);
setBackground(Color.lightGray);
setFont(new Font("Dialog",Font.BOLD,12));
setLayout(null);
// End of Frame Initialization
// Component Initialization
TextField1 = new TextField("http://");
TextField1.setForeground(Color.black);
TextField1.setBackground(Color.white);
TextField1.setFont(new Font("Dialog",Font.BOLD,12));
Button1 = new Button("Button1");
Button1.setFont(new Font("Dialog",Font.BOLD,12));
// End of Component Initialization
// Add()s
add(Button1);
add(TextField1);
// End of Add()s
InitialPositionSet();
} // End of init()
// start()
public void start()
{
} // End of start()
// stop()
public void stop()
{
} // End of stop()
// destroy()
public void destroy()
{
} // End of destroy()
public void paint(Graphics g)
{
// paint()
// End of paint()
}
public void InitialPositionSet()
{
// InitialPositionSet()
resize(392,122);
TextField1.reshape(22,18+MenuBarHeight,353,24);
Button1.reshape(20,71+MenuBarHeight,357,25);
// End of InitialPositionSet()
}
public boolean handleEvent(Event evt)
{
if (evt.target == Button1) {
try {
url = new URL(urlString);
System.out.println("URL: " + urlString);
} catch (MalformedURLException e) {
System.out.println("Malformed URL: " + urlString);
getAppletContext().showStatus(urlString);
getAppletContext().showDocument(url, "_blank");
}
if (url != null) {
getAppletContext().showDocument(url);
getAppletContext(). showStatus("Melong");
}
}
return super.handleEvent(evt);
}
} // End of Class noname01