List、Set、Map 的 of() 方法 | Java9
(openhome.cc)
14 則討論
IngramChen
張貼於
haocheng
積分 2
之前有相關 JEP:
不在語法層級支援的原因可能是這一段吧:
In the past, there have been a few proposals floated to change the Java programming language to support collection literals. However, as is often the case with language features, no feature is as simple or as clean as one might first imagine, and so collection literals will not be appearing in the next version of Java.
這是文章的子討論串，你可以回到上層查看所有討論和文章
之前 Sun 某個 Java 傳教士就曾在某個研討會投影片中靠北過了，反正他的大意就是「你們這些人總是覺得演化 Java 時這好哪好，其實才沒你們想的這麼簡單，我們要考慮的情況可多著嘞」…XD
但大概能理解，能用現存語法解決的地方，實在沒必要加個新的語法定義，除非真的效益差太多了。
啊，下一段就這樣寫了ＸＤ
Much of the benefit of collection literals can be gained by providing library APIs for creating small collection instances, at significantly reduced cost and risk compared to changing the language. For example, the code to create a small Set instance might look like this: