2008-05-25

单例模式

关键字: 设计模式 
package com.spsoft.singleton;

class Single {
	public void say() {
		System.out.println("I want to say,love you...");
	}
	/*private constructor method*/
	private Single() {
	}

	private static Single single = null;
	
	public static Single getSingleInstance() {
		if (single == null) {
			single = new Single();
		}
		return single;
	}
}

public class SingletenDemo {
	public static void main(String[] args) {
		Single s = Single.getSingleInstance();
		s.say();
	}
}

 

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