声明后初始化的Java数组

Question

I saw someone initialize and array like this in java

int[] s;

s = new int[]{ and put the list here..}

versus

int[] s = { the list here} 

Are these both acceptable way of doing it?

Answer 1

Yes, both are equally valid ways of creating a java integer array. The second version is just a shortcut syntax of the first version.

More on that here : http://download.oracle.com/javase/tutorial/java/nutsandbolts/arrays.html

Answer 2

是的，后者在特定情况下是前者的简写：后者只能直接用于变量的初始化器（其类型直接在左侧给出），而前者可以用作一般的表达。

Answer 3

是的，两种情况下生成的实际字节码完全相同。