public class SingletonClass {
private volatile static SingletonClass instance = null;
public static SingletonClass getInstance() {
if (instance == null) {
synchronized (SingletonClass.class) {
if(instance == null) {
instance = new SingletonClass();
}
}
}
return instance;
}
private SingletonClass() {
}
}
java单例 double check
猜你喜欢
转载自blog.csdn.net/ssllkkyyaa/article/details/84974587
今日推荐
周排行