StringList : sort by custom algorithm

Processing Coding Questions
4

(I can’t run it, old version of processing here)

// Files 
ArrayList<File> arrayListWithFileObjects = new ArrayList(); 

String[] filenames; 

//-------------------------------------------------------------------------------------------

void setup () {
  size (1230, 700);

  java.io.File folder = new java.io.File(dataPath(""));
  filenames = folder.list();
  printArray(filenames);

  for (String s1 : filenames) {
    arrayListWithFileObjects.add(new File(s1));
  } 
  println(""); 

  arrayListWithFileObjects.sort((f1, f2) -> Long.compare(f1.lastModified(), f2.lastModified()));
  //  arrayListWithStrings.sort((s1, s2) -> Long.compare(new File(s1).lastModified(), new File(s2).lastModified()));

  for (File f1 : arrayListWithFileObjects) {
    println(f1.getPath());
  }

  //
}//func 

void draw () {
  background(0);
}
//
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