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

Groovy Goodness: Pop And Push Items In a List

DZone's Guide to

Groovy Goodness: Pop And Push Items In a List

· Java Zone ·
Free Resource

FlexNet Code Aware, a free scan tool for developers. Scan Java, NuGet, and NPM packages for open source security and open source license compliance issues.

Groovy adds the pop and push methods to theList class. With the pop method we remove the last element of the list. And with the push method we add an element to the end of the list.

def list = ['Groovy', 'is', 'great!']
// Remove last item from list
// with pop().
assert list.pop() == 'great!'
assert list == ['Groovy', 'is']
// Remove last item
// which is now 'is'.
list.pop()
// Add new item to end of
// the list (equivalent for add()).
list.push('rocks!')
assert list == ['Groovy', 'rocks!']

Code written with Groovy 2.4

 Scan Java, NuGet, and NPM packages for open source security and license compliance issues. 

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 }}