equals()方法使用（覆盖equals()方法）

import java.util.*;

import java.lang.Comparable;

/**

 * @desc equals()的测试程序。

 *

 * @author skywang

 * @emai kuiwu-wang@163.com

 */

public class EqualsTest2{

    public static void main(String[] args) {

        // 新建2个相同内容的Person对象，

        // 再用equals比较它们是否相等

        Person p1 = new Person("eee", 100);

        Person p2 = new Person("eee", 100);

        System.out.printf("%s\n", p1.equals(p2));

    }

    /**

     * @desc Person类。

     */

    private static class Person {

        int age;

        String name;

        public Person(String name, int age) {

            this.name = name;

            this.age = age;

        }

        public String toString() {

            return name + " - " +age;

        }

        /**

         * @desc 覆盖equals方法

         */  

        @Override

        public boolean equals(Object obj){  

            if(obj == null){  

                return false;  

            }  

            //如果是同一个对象返回true，反之返回false  

            if(this == obj){  

                return true;  

            }  

            //判断是否类型相同  

            if(this.getClass() != obj.getClass()){  

                return false;  

            }  

            Person person = (Person)obj;  

            return name.equals(person.name) && age==person.age;  

        }

    }

}

equals()方法使用（覆盖equals()方法）

原文：https://www.cnblogs.com/chengshixiaonongming/p/10410512.html