Checking Hash Maps for Equality: public boolean equals(Object o) : HashMap « Collections « Java Tutorial

1. Java Tutorial
2. Collections
3. HashMap

Two maps are defined as equal if both of their entry sets are equal (thisHash.entrySet().equals(map.entrySet()).

import java.util.HashMap;
import java.util.Map;

public class MainClass {
  public static void main(String[] a) {
    Map map = new HashMap();
    map.put("key1", "value1");
    map.put("key2", "value2");
    map.put("key3", "value3");
    Map map2 = new HashMap();
    map2.put("key2", "value2");
    map2.put("key1", "value1");
    map2.put("key3", "value3");
    System.out.println(map1.equals(map2));
  }
}

true