|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
package com.wetuo.javabase;
public class SingletonDemo {
private static SingletonDemo instance = new SingletonDemo();
private SingletonDemo() {}
public static SingletonDemo getInstance() {
return instance;
}//充血模式
}方法二public class SingletonDemo {
private static SingletonDemo instance = null;
private SingletonDemo() {}
public static synchronized SingletonDemo getInstance() {//保证只new一次
if(null==instance)
return new SingletonDemo();
else
return instance;
}//饥饿模式
} |
本文转自arac 51CTO博客，原文链接：http://blog.51cto.com/skyarac/1351015，如需转载请自行联系原作者