An ArrayList is dynamic.
1. If you don't already have an Android project created, create an Android project.
2. In MainActivity.java, add the below line of code to the imports section.
import java.util.ArrayList;
3. Create a List with an ArrayList called myList.
4. Initialize myList with ArrayList by adding the below code in the onCreate method.
myList = newArrayList<ArrayList<String>();
5. Compile and run!
Resources: