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Update Test02.java #5

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Update Test02.java #5

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16 changes: 8 additions & 8 deletions src/Test02.java
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Original file line number Diff line number Diff line change
@@ -1,13 +1,13 @@
/**
* Author: ������
* Author: 王俊超
* Date: 2015-04-21
* Time: 13:58
* Declaration: All Rights Reserved !!!
*/
public class Test02 {

/**
* ����ģʽ������ʽ���̰߳�ȫ
* 单例模式，饿汉式，线程安全
*/
public static class Singleton {
private final static Singleton INSTANCE = new Singleton();
Expand All @@ -22,7 +22,7 @@ public static Singleton getInstance() {
}

/**
* ����ģʽ������ʽ���̲߳���ȫ
* 单例模式，懒汉式，线程不安全
*/
public static class Singleton2 {
private static Singleton2 instance = null;
Expand All @@ -42,7 +42,7 @@ public static Singleton2 getInstance() {


/**
* ����ģʽ������ʽ���̰߳�ȫ�����̻߳�����Ч�ʲ���
* 单例模式，懒汉式，线程安全，多线程环境下效率不高
*/
public static class Singleton3 {
private static Singleton3 instance = null;
Expand All @@ -61,7 +61,7 @@ public static synchronized Singleton3 getInstance() {
}

/**
* ����ģʽ������ʽ�����֣��̰߳�ȫ
* 单例模式，懒汉式，变种，线程安全
*/
public static class Singleton4 {
private static Singleton4 instance = null;
Expand All @@ -80,7 +80,7 @@ public static Singleton4 getInstance() {
}

/**
* ����ģʽ������ʽ��ʹ�þ�̬�ڲ��࣬�̰߳�ȫ���Ƽ���
* 单例模式，饿汉式，使用静态内部类，线程安全【推荐】
*/
public static class Singleton5 {
private final static class SingletonHolder {
Expand All @@ -97,7 +97,7 @@ public static Singleton5 getInstance() {
}

/**
* ��̬�ڲ��࣬ʹ��ö�ٷ�ʽ���̰߳�ȫ���Ƽ���
* 静态内部类，使用枚举方式，线程安全【推荐】
*/
public enum Singleton6 {
INSTANCE;
Expand All @@ -108,7 +108,7 @@ public void whateverMethod() {
}

/**
* ��̬�ڲ��࣬ʹ��˫��У�������̰߳�ȫ���Ƽ���
* 静态内部类，使用双重校验锁，线程安全【推荐】
*/
public static class Singleton7 {
private volatile static Singleton7 instance = null;
Expand Down