How can one use the Java replaceAll() method to using multiple strings in one method?

Question

I was wondering if it was possible to use the replaceAll() String method in Java with multiple Strings to search. In other words, is it possible to have multiple Strings get searched in one replaceAll() method? I tried this:

foo.replaceAll("a" || "b", "");

However I got an error... And I'm pretty sure I can only use || in an if statement sooo I don't know why I was thinking it would work. Help is appreciated!

You can use Regex str.replaceAll("a|b", ""); – Thallius May 09 '21 at 14:48 — Thallius, May 09 '21 at 14:48

score 0 · Answer 1 · answered May 09 '21 at 14:50

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It will work correctly just change your code like that:

"abc".replaceAll("a|b", "");

Method replaceAll receives the one String regexp parameter, so you should use "a|b" not "a" || "b"

answered May 09 '21 at 14:50

Dmitrii B

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score 0 · Accepted Answer · answered May 09 '21 at 15:29

0

As commented, you can do:

String str = "atbbbt";
String newStr = str.replaceAll("a|b", "");

System.out.println(newStr);

Output:

tt

answered May 09 '21 at 15:29

Most Noble Rabbit

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How can one use the Java replaceAll() method to using multiple strings in one method?

2 Answers2