Browse › Collections API and Streams API in Java

Create and Manipulate an ArrayList in Java

Guided

Part of Collections API and Streams API in Java Topic: Programming

Access

StationX Infrastructure Labs — 3 attempts per lab

🔒 Add StationX Infrastructure Labs — $149 / year · 3 attempts per lab

Already have access? Sign in.

New to this? Try a free practice lab — a scripted hacking challenge in your browser, no account needed.

What you'll do

In this lab, you will create and manipulate an ArrayList.

Create a project that contains two new classes
Declare, instantiate, and initialize a list as an ArrayList
Populate the ArrayList
Modify the contents of the ArrayList by using the toLowerCase method
Iterate over a list by using a for loop and a for-each loop
Iterate over a list by using the forEach method of the List interface

Note: Once you begin the lab, you will not be able to pause, save, or exit and then return to your lab. Please ensure that you have set aside enough time to complete the lab before you start.

⏱ About 30 minutes
Counts towards: Introduction to Java