setseed_Java Random setSeed（）方法与示例

落日映苍穹つ 2023-03-05 12:59 6阅读 0赞

setseed

## 随机类setSeed()方法 **(**Random Class setSeed() method**)** ##

*  **setSeed() method** is available in java.util package.
    
    **setSeed()方法**在java.util包中可用。
 *  **setSeed() method** is used to set the given seed of this Random Number Generator.
    
    **setSeed()方法**用于设置此随机数生成器的给定种子。
 *  **setSeed() method** is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
    
    **setSeed()方法**是一个非静态方法，只能使用类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。
 *  **setSeed() method** does not throw an exception at the time of set seed.
    
    **setSeed()方法**在设置种子时不会引发异常。

**Syntax:**

**句法：**

public void setSeed(long ss);

**Parameter(s):**

**参数：**

*  long ss – represents the seed.
    
    long ss –表示种子。

**Return value:**

**返回值：**

The return type of this method is void, it returns nothing.

此方法的返回类型为void ，不返回任何内容。

**Example:**

**例：**

// Java program to demonstrate the example 
    // of void setSeed(long ss) method of 
    // Random
    
    import java.util.*;
    
    public class SetSeedOfRandom {
        
     public static void main(String args[]) {
        
      // Instantiates Random object
      Random ran = new Random();
    
      // Display random value before seed
      System.out.println("ran: " + ran.nextInt());
    
      // By using setSeed(50) method is
      // to set the seed value of this
      // Random Value Generator by the given
      // seed parameter
    
      ran.setSeed(50);
    
      // Display random value after seed
      System.out.println("ran.setSeed(50): " + ran.nextInt());
     }
    }

**Output**

**输出量**

RUN 1:
    ran: -983822763
    ran.setSeed(50): -1160871061
    
    RUN 2:
    ran: -460404281
    ran.setSeed(50): -1160871061
    
    RUN 3:
    ran: 316540002
    ran.setSeed(50): -1160871061

> 翻译自: [https://www.includehelp.com/java/random-setseed-method-with-example.aspx][https_www.includehelp.com_java_random-setseed-method-with-example.aspx]

setseed

[https_www.includehelp.com_java_random-setseed-method-with-example.aspx]: https://www.includehelp.com/java/random-setseed-method-with-example.aspx