为什么不在同一行上声明多个相同类型的变量? [英] Why do you not declare several variables of the same type on the same line?

问题描述

为什么在一行上声明变量是不好的做法?

Why is it bad practice to declare variables on one line?

例如

private String var1, var2, var3

代替:

private String var1;
private String var2;
private String var3;

推荐答案

我认为有多种原因，但是它们全都归结为第一个原因是可读性较差并且更容易失败，因为单行的作用更多比一件事.

I think that there are various reasons, but they all boil down to that the first is just less readable and more prone to failure because a single line is doing more than one thing.

所有这些都没有真正的收益，而且您不告诉我，发现两行节省的空间才是真正的收益.

And all that for no real gain, and don't you tell me you find two lines of saved space is a real gain.

这与您拥有时发生的事情类似

It's a similar thing to what happens when you have

if ((foo = some_function()) == 0) {
    //do something
}

当然，此示例比您的示例差很多.

Of course this example is much worse than yours.

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