Question

How can I sort an array first by length, then alphabetically?

I have a list of things with numbers on them, and I am currently getting:

Something1
Something10
Something2
Something3

Whereas I want to get:

Something1 Something2 Something3 Something10

Answer 1

public class MyComparator implements Comparator<String>{
    @Override
    public int compare(String o1, String o2) {  
      if (o1.length() > o2.length()) {
         return 1;
      } else if (o1.length() < o2.length()) {
         return -1;
      }
      return o1.compareTo(o2);
    }
}

Then use:

Collections.sort(yourList, new MyComparator());