Here you can find the source of multiMoney(Integer money)
public static Integer multiMoney(Integer money)
//package com.java2s; //License from project: Open Source License public class Main { public static Integer rate = 1000; public static Integer multiMoney(Integer money) { if (money == null) return 0; else {//from w w w . j a v a2s . co m return money * rate; } } }