java只是花括号 [英] java just curly braces
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问题描述
我正在读一本书,有一些例子只有大括号的程序
I was reading a book and there were a few example with programs that has just curly braces
例如
public static void main(String args[]){
//what is the uses of curly braces here.
{
//some code
}
}
推荐答案
这是一个代码块。在那里声明的变量在上面的块中是不可见的(这些curlies之外的方法体),即它们的范围更有限。
It's a code block. The variables declared in there are not visible in the upper block (method body outside of these curlies), i.e. they have a more limited scope.
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