HOW TO USE BUTTON AND TEXT FIELD IN GUI IN ANDORID

IN ANDROID EVERY THING BASED ON XML AND JAVA .
AT THE SIDE EVERY IN IS THERE LIKE NET BEANS
ACCORDING TO OUR USE WE DRAG AND DROP
EVERY THING
EX
1.BUTTON->PERFORM ACTIONS
2.TEXTFIELD->TO GET INPTU
3.TEXT VIEW->TO DISPLAY SIMPLE TEXT
4.RADIO BUTTON ->TRUE OR FALSE
5.TOGGLE
&ETC

EACH HAVE CREATAIN FUNCTIONS IN ANDROID