Scala程序将字符串转换为整数

蔚落 2023-03-05 12:42 10阅读 0赞

In Scala, there is a huge library to support different operations on a string. One such operation is to convert string to int in Scala.

在Scala中，有一个庞大的库来支持对字符串的不同操作。 一种这样的操作是在Scala中将字符串转换为int。

A string can be converted to integer in Scala using the toInt method.

可以使用toInt方法在Scala 中将字符串转换为整数。

**Syntax:**

**句法：**

string.toInt

This will return the **integer conversion of the string**. If the string does not contain an integer it will throw an exception with will be ***NumberFormatException***.

这将返回**字符串**的**整数转换** 。 如果字符串不包含整数，它将引发一个异常，该异常将为***NumberFormatException*** 。

So, the statement: val i = "Hello".toInt will throw an exception instead of an integer.

因此，语句： val i =“ Hello” .toInt将引发异常而不是整数。

So, we need to handle this exception and we will do this using the try-catch block and print **"The string in not integer"** when the string to be converted does not contain an integer value.

因此，我们需要处理此异常，我们将使用try-catch块来执行此操作，并**在**要转换的字符串不包含整数值时显示**“非整数**的字符串**”** 。

## 在Scala中将字符串转换为整数的程序 **(**Program to convert string to integer in Scala**)** ##

object MyClass {
        
           def main(args: Array[String]) {
        
            val string = "1C 2C++ 3Java"
            println(string)
            
            val stringContents = string.split("\\d+")
            
            println("Content of the string are: ")
            
            for(i <- 0 to stringContents.length-1)
                println(stringContents(i))
        }
    }

**Output**

**输出量**

The string is : 12345
    Integer Conversion of string is 12345

> 翻译自: [https://www.includehelp.com/scala/convert-string-to-integer.aspx][https_www.includehelp.com_scala_convert-string-to-integer.aspx]

[https_www.includehelp.com_scala_convert-string-to-integer.aspx]: https://www.includehelp.com/scala/convert-string-to-integer.aspx