Strategy Pattern - Comparator #2

# Main.java

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

import java.util.List;

public class Main {

    public static void main(String[] args) {

List<String> al = new ArrayList<>();

al.add("ab");

al.add("c");

Collections.sort(al, new Comparator<String>() {

   // sorted by string length

   @Override

   public int compare(String o1, String o2) {

if (o1.length() == o2.length()) {

   return 0;

}

return o1.length() > o2.length() ? -1 : 1;

   }

});

for (String a : al) {

   System.out.println(a);

}

    }

}

# 결과

ab

c