软件工程

开发平台：

Java

Stock.java：源码内容

							package com.company.section1;
import java.util.Random;
/**
 * @author cbf4Life cbf4life@126.com
 * I'm glad to share my knowledge with you all.
 * 存货
 */
public class Stock {
	//刚开始有100台电脑
	private static int COMPUTER_NUMBER =100;  
	
	//库存增加
	public void increase(int number){
		COMPUTER_NUMBER = COMPUTER_NUMBER + number;
		System.out.println("库存数量为："+COMPUTER_NUMBER);
	}
	
	//库存降低
	public void decrease(int number){
		COMPUTER_NUMBER = COMPUTER_NUMBER - number;
		System.out.println("库存数量为："+COMPUTER_NUMBER);
	}
	
	//获得库存数量
	public int getStockNumber(){
		return COMPUTER_NUMBER;
	}
	
	//存货压力大了，就要通知采购人员不要采购，销售人员要尽快销售
	public void clearStock(){
		Purchase purchase = new Purchase();
		Sale sale = new Sale();
		System.out.println("清理存货数量为："+COMPUTER_NUMBER);
		//要求折价销售
		sale.offSale();
		//要求采购人员不要采购
		purchase.refuseBuyIBM();
		
	}
}

						