kotlinnumberformatexception

String to Int throwing a NumberFormatException

I am wanting to convert a String to an Int.

The String, in question, is 1585489022235.

I have to convert to a String, first, which appears to be successful (I am printing out the above). 

val id = data.get("id").toString()

println(id)

val toInt = id.toInt()

When I attempt to convert from a String to an Int, this exception is thrown:

 Error Message: java.lang.NumberFormatException: For input string: "1585489022235"
        Stacktrace: 
        java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:68)
        java.base/java.lang.Integer.parseInt(Integer.java:658)
        java.base/java.lang.Integer.parseInt(Integer.java:776)

Many thanks in advance

Solution

  • The value "1585489022235" can't be converted to an Int because it is greater than the maximum value of the data type Int which you can get by Int.MAX_VALUE and it is equal to 2147483647.
    What you can do is covert the string to Long:

    val x = id.toLong()

    The maximum value of the data type long is 9223372036854775807, which you can get by Long.MAX_VALUE.
    You can find more here: Basic Types - Numbers