equals 和 hashCode 方法是 Java 中 Object 类的两个关键方法，用于对象比较和哈希表操作： 契约一致性：确保 equals 和 hashCode 满足 Java 的契约。 二、eq… ...

equals (Object otherObject) – verifies the equality of two objects. It’s default implementation simply checks the object references of two objects to verify their equality. By default, two objects are ...

Java中的equals方法是用来比较对象是否相等的，但是它的具体实现原理却很有意思。 在本文中，我将给大家解析Java中equals底层代码的实现原理，并举例说明它在对象比较中的作用。

When a sub class inherits the properties of super class , then we can override the method of super class. this will acquire the properties of super class but can define its own behaviour.in general ...

As Java SDK suggests, you should override hashCode() too when you override equals(). This speeds up your code a bit, and most importantly, your code will not produce compiler warnings.

In this post, I look at using Guava ‘s Objects class to implement the three common methods equals, hashCode, and toString().