您可以将char与==进行比较吗？ [英] Can you compare chars with ==?

问题描述

对于字符串，您必须使用equals进行比较，因为==仅比较引用。

For Strings you have to use equals to compare them, because == only compares the references.

如果我将char与==比较，它是否可以提供预期的结果？

Does it give the expected result if I compare chars with == ?

我在stackoverflow上也看到过类似的问题，例如

I have seen similar questions on stackoverflow, E.g.

• 和=之间有什么区别= vs equals（）在Java中？

• What is the difference between == vs equals() in Java?

但是，我还没有看到有人问过要使用==字符。

However, I haven't seen one that asks about using == on chars.

推荐答案

是的，字符与其他任何原始类型一样，您可以通过 == 进行比较。

Yes, char is just like any other primitive type, you can just compare them by ==.

您甚至可以直接将char与数字进行比较并将其用于计算例如：

You can even compare char directly to numbers and use them in calculations eg:

public class Test {
    public static void main(String[] args) {
        System.out.println((int) 'a'); // cast char to int
        System.out.println('a' == 97); // char is automatically promoted to int
        System.out.println('a' + 1); // char is automatically promoted to int
        System.out.println((char) 98); // cast int to char
    }
}

将打印：

97
true
98
b

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