Can you tell what is worng with the code

[chasey1]

hi can some please tell why this one does not compile.
thxs


public class PrivateBuyer extends Buyer {
//instance variables
int discount;
int new price;
int calDiscount;
//constructor
public PrivateBuyer (String inputName, String inputAddress){
super( inputName, inputAddress);

}
//accessor methods
public int getpreviousPurchases () {
return previousPurchases;
}

//setting methods
public void setPurchases (int newPurchases) {
Purchases= newPurchases;

}
//other methods
private int calculateDiscount ()
{
int discount = 100;
// previously purchased 1 or more cars, get 10% discount
if this.previousPurchases >= 1
discount = 0.9;
return discount;
}



private Int buy ()
{
return discount;
new price = Price*discount;
return newprice
}

public void showDetails(){
System.out.println("buyer Name is : " + this.getbuyerName() );
System.out.println("buyer address is : " + this.getbuyeraddress() );
}

}//end of class definition