java-Comparable排序（list集合）

一、将Person类中按学号、姓名、年龄排序

实体类

package com.jredu.oop.ch02;
/**
 * 实体类
 * @author Administrator
 *
 */
/**
 * Comparable实现排序功能
 * @author Administrator
 *
 */
public class Person implements Comparable{
	private int id;//编号
	private String name;//姓名
	private int age;//年龄
	public Person(int id, String name, int age) {
		super();
		this.id = id;
		this.name = name;
		this.age = age;
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	@Override//重写toString方法
	public String toString() {
		return "Person [id=" + id + ", name=" + name + ", age=" + age + "]";
	}

打印

按姓名排序

打印

按年龄排序

打印