Searching folders inside folders in java

I have written code to recursively go through a directory and analyse the files within it. The directory i am searching is within another directory containing other folders. What i want to do is extend the code i have written so that it will search each of the outer directories

File dir = new File("directoryPath/directory1");
String filename1 = "directoryPath/directory1/file1";
List list1 = readFile(filename1);
List list2;
int count = 0;
List max = new ArrayList();

if (dir.isDirectory ()) {
String[] children = dir.list();
for (int i=0; i<children.length; i++) {
count++;
list2 = readFile(dir + "\\" + children);
...... do things here

}

}

So in the above example, i am searching files in directorypath/directory1, but directorypath also contains other directories which i also want to search. Does anybody know how i might do this? Any help would be greatly appreciated
Thanks!

 

I don't see any recursion in that code. If you used recursion (correctly) it'd be able to do what you're trying to do.

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