?? lazysingleton.java
字號:
package com.javapatterns.singleton.demos;
/**
* Only once instance of the class may be created during the
* execution of any given program. Instances of this class should
* be aquired through the getInstance() method. Notice that there
* are no public constructors for this class.
*/
public class LazySingleton
{
private LazySingleton() { }
synchronized public static LazySingleton getInstance()
{
if (m_instance == null)
{
m_instance = new LazySingleton();
}
return m_instance;
}
/**
* @label Creates
*/
private static LazySingleton m_instance = null;
}
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