You may want to create three different xml layouts for the three buttons...and did you see the startActivity() method ..... it will help...it would be like..
Edit :
Alex Vandusen wrote:... one class?
My mistake...i didnt see that one class..thing...i think you can use ... setContentView(YOUR XML LAYOUT ID) method....You can specify the XML LAYOUT ID according to button click....every xml layout should have the button layout on top of it...(Ofcourse button layout is another xml layout)