package 四则运算;

import java.util.Random;
//******************************
//  作者：仇夏、王志伟
//
//这是实现表达式的第二种想法
//**********************************

public class Expressions extends Issue
{

    String num;
    String Expression;
    String mount;
    String ope;



    //我现在需要一个随机数，来表示题目等级，然后随机确定题目的等级
    public String getStage() {
        num = getRandomNumber();
        Expression = num + " ";

        Random stsge = new Random();
        int a = stsge.nextInt(4);

        for (int b = 0; b <= a; b++) {
            ope = getOperator();
            Expression += ope + " ";
            num = getRandomNumber();
            Expression += num + " ";
        }

        return Expression;
    }
    //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    public String getExpression()
    {
        return Expression;
        }



}