How to realize the condition of object equality by Java

This article mainly explains "Java how to achieve the condition of object equality". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how Java achieves the condition of object equality".

Public static class Character {public final String name; public final String age; public Character (String name, String age) {this.name = name; this.age = age;}} public static void putAndGet () {Map map = new HashMap (); Character xd = new Character ("aaa", "111"); map.put (xd,1) Map.put (new Character ("bbb", "222nd"), 2); System.out.println (map.get (xd)); System.out.println (map.get (new Character ("aaa");} public static void main (String [] args) {putAndGet () / / ask for the output result. This question does not give the outer class: / / if the outer class does not exist, report an error directly / / if you do not consider this, the output result is: / / 1 / / null} Thank you for your reading. This is the content of "how to achieve the condition of object equality in Java". After the study of this article, I believe you have a deeper understanding of how to achieve the condition of object equality in Java, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!