null pointer Exception getcodebase()

[karunakaran Perumal]

hai ,excuseme i new one to this forum.so i don't know abt previous posts.
I urgently need solution for my problem.

this is my program


public static void main(String args[])
{
CheckApplet c =new CheckApplet();

String str=c.getCodeBase().getHost();
System.out.println(str);
}

at java.applet.Applet.getCodeBase(Applet.java:136)
at CheckApplet.main(CheckApplet.java:17)

plz give me solution for this problem

[Ernest Friedman-Hill]

Hi,

Welcome to JavaRanch!

getCodeBase() is implemented by calling out to another class in the applet package, "AppletStub". The browser provides an AppletStub object by calling the Applet's setStub() method when the Applet is created. If you want to use an applet outside of a regular container, and that applet needs to use any of the methods whose implementations depend on there being an AppletStub, then you have to implement an AppletStub subclass yourself and call Applet.setStub() to register it.