Over a million developers have joined DZone.
{{announcement.body}}
{{announcement.title}}

Groovy Goodness: Replace Characters in a String with CollectReplacements

DZone's Guide to

Groovy Goodness: Replace Characters in a String with CollectReplacements

· Java Zone ·
Free Resource

Get the Edge with a Professional Java IDE. 30-day free trial.

We can use the collectReplacements(Closure) method to replace characters in a String. We pass a closure to the method and the closure is invoked for each character in the String value. If we return null the character is not transformed, otherwise we can return the replacement character.

def s = 'Gr00vy is gr8'

def replacement = {
    // Change 8 to eat
    if (it == '8') {
        'eat'
    // Change 0 to o
    } else if (it == '0') {
        'o'
    // Do not transform
    } else {
        null
    }
}
 

assert s.collectReplacements(replacement) == 'Groovy is great'Code written with Groovy 2.1.6

Get the Java IDE that understands code & makes developing enjoyable. Level up your code with IntelliJ IDEA. Download the free trial.

Topics:

Published at DZone with permission of

Opinions expressed by DZone contributors are their own.

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}