用枚举类型来实现单例模式

最新推荐文章于 2024-04-04 13:25:00 发布

roykfw

最新推荐文章于 2024-04-04 13:25:00 发布

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分类专栏： effective java 文章标签： string exception date

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package com.roykw.enumsingleton;

import java.util.Date;

public enum Student {
	INSTANCE;
	private String name;
	private Date birthday;
	
	
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public Date getBirthday() {
		return birthday;
	}
	public void setBirthday(Date birthday) {
		this.birthday = birthday;
	}
	
	public static void main(String[] args) throws Exception, NoSuchFieldException {
		Student s1 = Student.INSTANCE;
		Student s2 = Student.INSTANCE;
		System.out.println(s1 == s2);//true
		
	}
}