Scala程序将字符串转换为整数

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