急！java的自动售货机找零程序

public class Change {
public static void main(String args[]){
Scanner sc = new Scanner(System.in);
System.out.print("The goods cost:");
int cost=sc.nextInt();
System.out.print("The customer paid:");
int paid=sc.nextInt();
change(cost,paid);
}

public static void change(int cost,int paid){
//unit of cost&paid is dollar
int change=(paid-cost)*100;
int numOfTF=0;//number of 25 cents
int numOfT=0;//number of 10 cents
int numOfF=0;//number of 5 cents
if(change<0)//payment is not enough
System.out.println("payment is not enough");
else{
numOfTF=(int)change/25;
numOfT=(int)(change-numOfTF*25)/10;
numOfF=(int)(change-numOfTF*25-numOfT*10)/5;
System.out.println("Change is: "+numOfTF+" 25 cents, "+numOfT+" 10 cents, "+numOfF+" 5 cents.");
}
}
}