How to change cusor and calling..........

I want to ask, that,
1) when a cursor moves on a Button component it should change into a hand cursor, how can I do that. Please give me code as an example.
2) and I have put a button which is a special one i.e "is not equal to" now I want that when on pressing that button a sign like " is equal to
with a slash on it" appears in the text field how can I do this.

for eg:
first create a cursor like this
java.awt.Cursor c=new java.awt.Cursor(java.awt.Curser.HAND_CURSOR);
(u can find lot of cursers in Cursor class)
then use Component class's method.like this
urComponent.setCursor(c);
now u have a hand cursor
if u need some custom cursors,try this
java.awt.Toolkit tk = java.awt.Toolkit.getDefaultToolkit();
Image img=tk.getImage("path");
java.awt.Point hotPoint = new java.awt.Point( 0, 0 );
java.awt.Cursor c=tk.createCustomCursor( img, hotPoint, "astring" );
urComponent.setCursor(c);
create an image which'll become as a cursor.then create a Cursor with that image.then use setCursor method from appropriate mouseevent method.OK?
basha