wallacedong's recent timeline updates wallacedong's recent timeline updates | wallacedongV2EX member #118716, joined on 2015-05-25 15:59:32 +08:00 |
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May 27, 2015 Replied to a topic by qinfensky 程序员 遇到比较压抑的上司，我就是被招的那个比较菜的开发 |
你这个阶段只能硬着头皮干，坚持一段时间就知道自己适不适合做开发，有些人想做开发，但是一段时间下来自己觉得不合适，别人也觉得不合适，那就没必要继续了，这都是身边真实发生的事，有些人虽然基础差点，但是肯学习，有一些悟性，坚持一段时间之后就得心应手了，所以你最好别辞职，公司也不会随便让你走，你这是自己坚持不下来，怨不得别人。
May 26, 2015 Replied to a topic by Registering 程序员 来看看这个单例模式呗 |
public class Singleton {
// Private constructor prevents instantiation from other classes
private Singleton() { }
/**
* SingletonHolder is loaded on the first execution of Singleton.getInstance()
* or the first access to SingletonHolder.INSTANCE, not before.
*/
private static class SingletonHolder {
public static final Singleton INSTANCE = new Singleton();
}
public static Singleton getInstance() {
return SingletonHolder.INSTANCE;
}
}
// Private constructor prevents instantiation from other classes
private Singleton() { }
/**
* SingletonHolder is loaded on the first execution of Singleton.getInstance()
* or the first access to SingletonHolder.INSTANCE, not before.
*/
private static class SingletonHolder {
public static final Singleton INSTANCE = new Singleton();
}
public static Singleton getInstance() {
return SingletonHolder.INSTANCE;
}
}
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