从字符的ArrayList中删除字符 [英] Removing a character from an ArrayList of characters

问题描述

我正面临循环中这种不需要的从 char 到 int 的转换.假设我有此字符列表，并且想删除其中之一:

I am facing with this unwanted char to int conversion in a loop. Say I have this List of Characters and I want to remove one of those:

List<Character> chars = new ArrayList<>();
chars.add('a');
chars.add('b');
chars.add('c');
chars.remove('a');  // or chars.remove('a'-'0');

因此'a'被解释为其 int 值，并且我得到了 IndexOutOfBoundsException 异常.有什么简单的解决方法吗?

so 'a' is interpreted as its int value and I'm getting an IndexOutOfBoundsException exception. Is there any easy workaround for this?

推荐答案

char 被提升为 int ，该优先级高于自动装箱，因此 remove(int) 而不是 remove(Object) 您可能会直观地期望.

A char is promoted to an int, which takes precedence over autoboxing, so remove(int) is called instead of remove(Object) you may have intuitively expect.

您可以通过自己对参数进行装箱来强制调用"right"方法:

You can force the "right" method to be called by boxing the argument yourself:

chars.remove(Character.valueOf('a'));

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