Converting a string to int in Groovy

Question

I have a String that represents an integer value and would like to convert it to an int. Is there a groovy equivalent of Java\'s Integer.pars

Answer 1

As an addendum to Don's answer, not only does groovy add a .toInteger() method to Strings, it also adds toBigDecimal(), toBigInteger(), toBoolean(), toCharacter(), toDouble(), toFloat(), toList(), and toLong().

In the same vein, groovy also adds is* eqivalents to all of those that return true if the String in question can be parsed into the format in question.

The relevant GDK page is here.

Answer 2

The Simpler Way Of Converting A String To Integer In Groovy Is As Follows...

String aa="25"
int i= aa.toInteger()

Now "i" Holds The Integer Value.

Answer 3

also you can make static import

import static java.lang.Integer.parseInt as asInteger

and after this use

String s = "99"
asInteger(s)

Answer 4

Several ways to achieve this. Examples are as below

a. return "22".toInteger()
b. if("22".isInteger()) return "22".toInteger()
c. return "22" as Integer()
d. return Integer.parseInt("22")

Hope this helps

Answer 5

toInteger() method is available in groovy, you could use that.

Answer 6

Groovy Style conversion:

Integer num = '589' as Integer

If you have request parameter:

Integer age = params.int('age')