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Java的简单作业,我不会。。可以教教我吗?

Java的简单作业,我不会。。可以教教我吗?

biubiubong 2017-03-08 22:35:16
编写一个四则运算测试程序,随机产生 1 道四则运算题目,并 将题目在屏幕上显示,等待用户回答,判定回答是否正确,如 果回答正确, 在屏幕上显示 “回答正确” , 否则显示 “回答错误, 正确答案是:X” 。
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?
慕瓜9220888

TA贡献868条经验 获得超0个赞

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反对 回复 2021-10-19
?
AScorpio

TA贡献18条经验 获得超10个赞

//利用随机数来搞事

//虽然写的不好,但意思是差不多的

public class Test{

public static void main(String[] args){

int m = (int)(Math.random()*100); //随机数1,范围(0到99);

int n = (int)(Math.random()*100); //随机数2,范围(0到99);

int c = (int)(Math.random()*4); //随机数3, 范围(0到3),用于随机产生加减乘除

int num = 0;

switch(c){

case 0:

num = m + n;

System.out.println(m+" + "+n+" = ?");

break;

case 1:

num = m - n;

System.out.println(m+" - "+n+" = ?");

break;

case 2:

num = m * n;

System.out.println(m+" * "+n+" = ?");

break;

case 3:

num = m / n;

System.out.println(m+" / "+n+" = ?");

break;

}

System.out.println("正确答案是:" + num);

}

}

//img1.sycdn.imooc.com//58c0491a00014ef810710767.jpg

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反对 回复 2017-03-09
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