天天冒出一堆新的東西！讓人不知所措。

舉個例子：jquery - angular - react - vue

這語言真的有毒。

如今的硬件，恐怕在瀏覽器中實現(xiàn)強類型語言JAVA來作為腳本語言都不比JS弱吧，哎真替applet感到冤枉。

老夫一直就覺得，瀏覽器一直是一個很奇葩的東西，HTML+CSS+JS本身，難道不能發(fā)明一種語言通過HTTP傳輸，然后直接調(diào)用OS級別的UI來渲染不就完了嗎？

網(wǎng)頁能實現(xiàn)的界面，我不信用操作系統(tǒng)的UI組件做不出來。 原文地址：https://weblogs.java.net/blog/pat/archive/2004/10/stupid_scanner_1.html

正則表達式中，\A是指一個字符串的開頭，可能大家用慣了^，而忽略了這個\A， 但是^其實是指一行的開始，而不管一個字符串里面包含多少行，\A都只匹配第一行的開頭。
那么我們可以用\A做點什么呢？，看下面這個例子：
相信大家都看懂了，用\A作為分隔符，那么得到的當然就只有一個token，那就是整個字符串了。再配合Scanner，就輕易的將一個輸入流轉(zhuǎn)換為一個字符串了。
注意當需要做編碼轉(zhuǎn)換時，Scanner是有支持編碼參數(shù)的構(gòu)造方法的。      摘要: Gson is library created by google guys, it is used for java bean to json serialization/deserialization. Gson can serialize any java bean, collection, map to json, and don't need to care about the...  閱讀全文 If we observe a property of SWT controls, and bind it to another observable value, you must take care of those method calls which will change the property indirectly.
for example, we have a Combo whose "text" property is bound to a bean's "name" property like this:

The variable "obserabedDriverProfile" is a observed selection in a ListViewer, it's in a master-detail scenario. If we add some code like this:
every time you change the selection in the ListViewer,  the selected bean's "name" property will be set to a empty string. Why?  The removeAll method of Combo will clear it's text, and combo's "text" property is bound to selected bean's "name" property. So, the right way is:
本文用英文寫的，主要是考慮到本文分享的內(nèi)容即使在google上也搜索不到（至少我是沒有搜索到）。

My English is at a very low level, don't care about this fact, just focus on the idea shared here.

The idea comes from the source code of ConfigurationElement which is located in package org.eclipse.core.internal.registry, If you read through the source code, you can also get it. But I found there is no documentation about this topic, so I wrote this.

Sometimes we need to contribute java class to a extension point. And we can use ConfigurationElement#
createExecutableExtension(String attributeName) to create an instance of it, if such a class is just a normal class, eclipse will  call class#newInstance(). But there is obvious restriction for using this approach, can't pass parameter in to create instance for example.

There are three different way how eclipse create instance of your class.

1. normal, call class#newInstance()
2. if your calss implements IExecutableExtension interface, IExecutableExtension#setInitializationData(IConfigurationElement config, String propertyName, Object data) will be called on the instance returned by class#newInstance()
3. if your calss implements IExecutableExtensionFactory interface, IExecutableExtensionFactory#create() will be called

When you use the second method or the third method, you can pass in parameters, check the source code of ConfigurationElement, you will know how to do that. :D forgive me, I'm lazy.