Getting all particular files in directory and adding them to ArrayList

Question

How to get all "Files" containing word "pic" and "vids" in a directory and subdirectories and add them into a ArrayList

Answer 1

Java.io.File contains the .getName() method which allows you to read a name as String. You can then use the .contains() method to check if the returned string contains "pic" or "vids". Assuming you have a list of files, you iterate through each of them and check:

if (myFile.getName().contains("pic") || myFile.getName().contains("vids"))
myArrayList.add(myFile);

If you need help listing all the files in the directory and also subdirectory, try referring to the example in this link:
https://stackoverflow.com/questions/14676407/list-all-files-in-the-folder-and-also-sub-folders