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                # Java 程序:生成隨機數 > 原文: [https://beginnersbook.com/2014/04/java-program-to-generate-random-number-example/](https://beginnersbook.com/2014/04/java-program-to-generate-random-number-example/) #### 示例:生成隨機數的程序 在下面的程序中,我們使用`Random`類的`nextInt()`方法來實現我們的目的。 ```java /* Program: Random number generator * Written by: Chaitanya from beginnersbook.com * Input: None * 輸出:Random number between o and 200*/ import java.util.*; class GenerateRandomNumber { public static void main(String[] args) { int counter; Random rnum = new Random(); /* Below code would generate 5 random numbers * between 0 and 200. */ System.out.println("Random Numbers:"); System.out.println("***************"); for (counter = 1; counter <= 5; counter++) { System.out.println(rnum.nextInt(200)); } } } ``` 輸出: ```java Random Numbers: *************** 135 173 5 17 15 ``` 上述程序的輸出每次都不一樣。無論何時運行此代碼,它都會生成 0 到 200 之間的任意 5 個隨機數。對于例如當我第二次運行它時,它給了我以下輸出,這與上面的完全不同。 輸出 2: ```java Random Numbers: *************** 46 99 191 7 134 ```
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