使用Scala生成随机数

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我是靠谱客的博主高挑小海豚，这篇文章主要介绍使用Scala生成随机数，现在分享给大家，希望可以做个参考。

一.使用Scala生成随机数

1.简单版本：

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/*
1.you can use scala.util.Random.nextInt(10) to produce a number between 1 and 10
2.at the same time,you nextInt(100) to produce a number between 1 and 100
*/
object Test {
  def main(args: Array[String]) {
    var i = 0
    while(i < 10)
      var str = scala.util.Random.nextInt(100).toString
      println(str)
      i = i+1
    }
  }
}

这里写图片描述

2.复杂版本：

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object Test{
  def main(args: Array[String]): Unit = {
    val wordPerMessage = 4
    var i = 0
    while(i<10){
      /*
      1.the (1 to 1) is meaning that only have one circulation.
      */
      (1 to 1).foreach { messageNum => {
        //[There's only three cycle]
        val str: Seq[String] = (1 to wordPerMessage).map(x => scala.util.Random.nextInt(10).toString)
        val str1 = str.mkString(" ")//separate str1 with space
        println(str)
        }
      }
      i = i +1
    }
  }
}