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();elsereturn instance;}//饥饿模式}转载于:https://blog.51cto.com/skyarac/1351015
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、栈地址(stack address)、栈大小(stack size))
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