Java Data Structure How to - Sort a list of words by length then by alphabetical order

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Question

We would like to know how to sort a list of words by length then by alphabetical order.

Answer

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
//from w  ww .ja v a2  s. co  m
public class Main {
    public static void main(String[] args) {
        List<String> list=new ArrayList<>();
        list.add("acowa");
        list.add("cow");
        list.add("aow");
        Collections.sort(list, new Comparator<String>() {

            @Override
            public int compare(String o1, String o2) {
                if(o1.length()>o2.length()){
                    return 1;
                }else{
                    return o1.compareTo(o2);
                }
            }
        });

        System.out.println(list);
    }
}

The code above generates the following result.

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