Java实现猜数游戏

柔情只为你懂 2024-03-31 14:06 100阅读 0赞

**1** **问题**

编写一个Java程序，实现以下功能：

![06518698cd318e1adce737460880943f.png][]

**2** **方法**

1.  首先导入java.util包下的Random，让程序随便分配给用户一个数。
    
    再导入java.util包下的Scanner类，构建Scanner对象，以便输入。
    
      
    ![393116a2877914bca9db656827f16a65.png][]
2.  利用Random().nextInt()生成一个随机的int值，再利用Scanner()让用户从控制台输入。
    
      
    ![2e551b231cae48f233c1b15c5114aa9e.png][]
3.  再利用while循环和if条件语句进行判断。

![f751cc7e85ae4158a9fb6700d855764b.png][]

<table> 
 <tbody> 
 <tr> 
 <td>import java.util.Random; import java.util.Scanner; public class Zuo9 { &nbsp; &nbsp;public static void main(String[] args){ &nbsp; &nbsp; &nbsp; &nbsp;int num=new Random().nextInt(100)+1; &nbsp; &nbsp; &nbsp; &nbsp;Scanner scanner=new Scanner(System.in); &nbsp; &nbsp; &nbsp; &nbsp;int input=0; &nbsp; &nbsp; &nbsp; &nbsp;while (input != num){ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("猜猜该数字！"); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;input=scanner.nextInt(); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;if (input&gt;num){ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("猜大了！"); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;if(input&lt;num){ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("猜小了！"); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;else if (input==num){ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;System.out.println("猜对了！"+num); &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp;} }</td> 
 </tr> 
 </tbody> 
</table>

**3** **结语**

针对猜数游戏问题，提出利用while循环语句和if条件语句，通过利用Java编程随机生成一个数字，让用户输入自己的猜测，根据提示来修改自己的猜测，直到猜对随机生成的数字的实验，证明该方法是有效的，本文的方法只是其中一种，未来可以研究出更多更简洁的方法进行实验。

[06518698cd318e1adce737460880943f.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/31/c524ab562340493cb9885ed069bfa8fe.png
[393116a2877914bca9db656827f16a65.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/31/60f0db39707542b286fe2cad30cfb715.png
[2e551b231cae48f233c1b15c5114aa9e.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/31/b08af6591c364db195d636b96e641c74.png
[f751cc7e85ae4158a9fb6700d855764b.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/31/f37caac7e6414440bfa7e8d34bc800ff.png