scala 字符串转换数组_Scala程序将数组转换为字符串

编程知识更新时间:2023-05-02 21:17:02

scala 字符串转换数组

Scala | 将数组转换为字符串 (Scala | Converting array to string)

Arrays play an important role in programming as they provide easy operation and there is a large amount of method available in the Scala library of array manipulation. But there are times when storing or printing of array can be done more effectively when converted to a string, but the question is how? So, here is a program to convert array to string in Scala.

数组在编程中起着重要作用，因为它们提供了简单的操作，并且Scala数组操作库中提供了大量可用的方法。但是有时将数组转换为字符串后 ，可以更有效地完成数组的存储或打印，但是问题是如何呢？因此，这是一个在Scala中将数组转换为字符串的程序。

The mkString() method of the array library is employed to perform the task of conversion of array to string.

数组库的mkString()方法用于执行将数组转换为string的任务。

Syntax:

句法：

    array_name.mkString(saperator)

The method takes a separator as a parameter which will separate two array elements in the string and returns a string.

该方法将分隔符作为参数，该分隔符将分隔字符串中的两个数组元素并返回一个字符串。

Program:

程序：

object myObject {
    def main(args: Array[String]) {
        val myArray = Array("Learn", "programming", "at", "IncludeHelp") 
        val str = myArray.mkString(" ")
        print("myArray : "+str)
    }
}

Output

输出量

myArray : Learn programming at IncludeHelp

You can use any string as a separator for your converted string, in the above program we have used a single space as a separator which is commonly used. Common separators that are used in converting an array to string are , , \n (new line), "".

您可以使用任何字符串作为转换后的字符串的分隔符，在上述程序中，我们使用单个空格作为常用分隔符。了在一个阵列转换为字符串使用的常见分离器是，\ n(换行符)“”。

In the case of converting an array to string whose elements are numbers, we use , comma as separator else all the elements will appear like a single big number.

在数组转换为字符串，其元素是数字，我们使用，逗号作为分隔符的情况下，其他所有的元素会出现像一个大数目。

Program:

程序：

object myObject {
    def main(args: Array[String]) {
        val myArray = Array(12, 5, 45, 56) 
        val str = myArray.mkString(", ")
        print("myArray : "+str)
    }
}

Output

输出量