Java Sixth time job

Importjava.util.ArrayList;Importjava.util.Collections;ImportJava.util.Random;ImportJava.util.*; Public classChoujiang {PrivateArraylist<integer>cards;  Public voidDealintnum) {        if(cards==NULL) {cards=NewArraylist<integer>();  for(num=1;num<=100;num++) {cards.add (num);    }} collections.shuffle (cards); }     Public voidDraw () {Random ra=NewRandom (); ints =Ra.nextint (Cards.size ()); System.out.println ("First Prize:" +Cards.get (s));        Cards.remove (Cards.get (s));                Collections.shuffle (cards);  for(inti=0;i<2;i++){            intstwo=Ra.nextint (Cards.size ()); System.out.println ("Second Prize:" +Cards.get (stwo));            Cards.remove (Cards.get (stwo));            } collections.shuffle (cards);  for(intJ =0;j<3;j++){                intSThree =Ra.nextint (Cards.size ()); System.out.println ("Third Prize:" +Cards.get (SThree));            Cards.remove (Cards.get (SThree)); }         }     Public Static voidMain (string[] args) {//TODO auto-generated Method StubChoujiang C =NewChoujiang (); C.deal (0);    C.draw (); }}

Java Sixth time job