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Java的簡(jiǎn)單作業(yè),我不會(huì)。??梢越探涛覇幔?/h1>

Java的簡(jiǎn)單作業(yè),我不會(huì)。。可以教教我嗎?

biubiubong 2017-03-08 22:35:16
編寫一個(gè)四則運(yùn)算測(cè)試程序,隨機(jī)產(chǎn)生 1 道四則運(yùn)算題目,并 將題目在屏幕上顯示,等待用戶回答,判定回答是否正確,如 果回答正確, 在屏幕上顯示 “回答正確” , 否則顯示 “回答錯(cuò)誤, 正確答案是:X” 。
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?
慕瓜9220888

TA貢獻(xiàn)868條經(jīng)驗(yàn) 獲得超0個(gè)贊

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反對(duì) 回復(fù) 2021-10-19
?
AScorpio

TA貢獻(xiàn)18條經(jīng)驗(yàn) 獲得超10個(gè)贊

//利用隨機(jī)數(shù)來(lái)搞事

//雖然寫的不好,但意思是差不多的

public class Test{

public static void main(String[] args){

int m = (int)(Math.random()*100); //隨機(jī)數(shù)1,范圍(0到99);

int n = (int)(Math.random()*100); //隨機(jī)數(shù)2,范圍(0到99);

int c = (int)(Math.random()*4); //隨機(jī)數(shù)3, 范圍(0到3),用于隨機(jī)產(chǎn)生加減乘除

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("正確答案是:" + num);

}

}

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

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反對(duì) 回復(fù) 2017-03-09
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