48 lines
1.0 KiB
Java
48 lines
1.0 KiB
Java
package com.inmind.colletions04;
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import java.util.Objects;
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public class Student implements Comparable<Student> {
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String name;
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int age;
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public Student(String name, int age) {
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this.name = name;
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this.age = age;
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}
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@Override
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public String toString() {
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return "Student{" +
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"name='" + name + '\'' +
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", age=" + age +
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'}';
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}
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@Override
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public boolean equals(Object o) {
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if (o == null || getClass() != o.getClass()) return false;
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Student student = (Student) o;
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return age == student.age && Objects.equals(name, student.name);
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}
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@Override
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public int hashCode() {
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int result = Objects.hashCode(name);
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result = 31 * result + age;
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return result;
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}
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/*
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排序功能方法
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我-它：升序
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它-我：降序
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*/
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@Override
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public int compareTo(Student s) {
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// return this.age-s.age;//升序
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return s.age-this.age;//降序
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}
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}
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