Java:没有回报的三元.(用于方法调用)

2022-01-19 00:00:00 return methods boolean ternary java

我想知道是否可以进行三元运算但不返回任何内容.

I was wondering if it was possible to do a ternary operation but without returning anything.

如果在 Java 中不可能，那么在其他语言中是否可能，如果可以，哪些适用?

If it's not possible in Java is it possible in other languages, if so which ones apply?

name.isChecked() ? name.setChecked(true):name.setChecked(false);

推荐答案

不，你不能.但是，与 if-else 语句相比，这有什么意义呢?您真的要保存 7 个字符吗?

No, you can't. But what's the point of this over an if-else statement? Are you really trying to save 7 characters?

if (name.isChecked()) {
    name.setChecked(true);
} else {
    name.setChecked(false);
}

或者如果你喜欢糟糕的风格:

or if you prefer bad style:

if (name.isChecked()) name.setChecked(true); else name.setChecked(false);

别介意你可以做(​​在这种情况下):

Never mind the fact that you can just do (in this case):

name.setChecked(name.isChecked());

三元或条件"运算符的重点是将条件引入表达式.换句话说，这是:

The point of the ternary or "conditional" operator is to introduce conditionals into an expression. In other words, this:

int max = a > b ? a : b;

是这个的简写:

int max;
if ( a > b ) {
    max = a;
} else {
    max = b;
}

如果没有产生值，则条件运算符不是快捷方式.

If there is no value being produced, the conditional operator is not a shortcut.

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