-3
我必须将-1替换为将评估为新购物者ID号的适当整数值的值。如何在方法内创建一个自动递增的ID
import java.util.Scanner;
public class MethodHolder {
private static int nextShopperID = 100;
private static int nextProductID = 100;
protected static Shopper generateShopper(){
Scanner scan = new Scanner(System.in);
String name = null;
double balance = 0.0;
int productLimit = 0;
System.out.println("Please enter the shoppers name: ");
name = scan.next();
System.out.println("Please enter the shoppers balance: ");
balance = scan.nextDouble();
System.out.println("Please enter the shoppers product limit: ");
productLimit = scan.nextInt();
// replace -1 with the appropriate increment expression
return new Shopper(-1, name, balance, productLimit);
}
这是什么问题? – ergonaut
你知道'if'语句是什么吗?顺便说一句:[为我的Java类生成唯一的int ID](http://stackoverflow.com/q/32639692) – Tom
这是什么'nextShopperID'打算是什么?这可能与你的问题有关吗? – zapl