标题: 请求单例模式之懒汉模式?? [打印本页] 作者: 李红飞 时间: 2012-5-26 22:30 标题: 请求单例模式之懒汉模式?? 1:
class Single
{
private static Single s = null;
private Single(){}
public static Single getInstance()
{
if(s==null)
{
}
return s;
}
}
2:
class Single
{
private static Single s = null;
private Single(){}
public static synchronized Single getInstance()
{
if(s==null)
{
s = new Single();
}
return s;
}
}
3:
class Single
{
private static Single s = null;
private Single(){}
public static Single getInstance()
{
if(s==null)
{